label
stringlengths 1
2
| index
stringlengths 1
5
| code
stringlengths 87
8.24k
|
|---|---|---|
38
|
18500
|
int main()
{
int k;
scanf("%d", &k);
int kk;
for(kk = 1; kk <= k; kk++)
{
int n;
scanf("%d", &n);
double *data = (double *) malloc(sizeof(double) * n);
int i;
double sum = 0;
for(i = 0; i <= n - 1; i++)
{
scanf("%lf", data + i);
sum = sum + *(data + i);
}
double mean = sum / (1.0 * n);
double total = 0;
for(i = 0; i <= n - 1; i++)
{
total = total + pow(*(data + i) - mean, 2);
}
total = sqrt( total / (1.0 * n) );
printf("%.5f\n", total);
}
return 0;
}
|
38
|
18501
|
int main()
{
int n,m[101],i,j;
double x[1001],s[101],a;
scanf("%d",&n);
for(i=0;i<n;i++)
{
double b=0,sum=0;
scanf("%d",&m[i]);
for(j=0;j<m[i];j++)
{
scanf("%lf",&x[j]);
sum=sum+x[j];
}
a=sum/m[i];
for(j=0;j<m[i];j++)
{
b=b+(x[j]-a)*(x[j]-a);
}
s[i]=sqrt(b/m[i]);
}
for(i=0;i<n;i++)
{
printf("%.5lf\n",s[i]);
}
return 0;
}
|
38
|
18502
|
int main()
{
int n,i,j;
double x[100][101]={0},xa[100][2]={0};
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf",&x[i][0]);
x[i][0]=(int)x[i][0];
for(j=1;j<=x[i][0];j++)
{
scanf("%lf",&x[i][j]);
xa[i][0]+=x[i][j];
}
xa[i][0]=xa[i][0]/x[i][0];
}
for(i=0;i<n;i++)
{
for(j=1;j<=x[i][0];j++)
{
xa[i][1]+=(x[i][j]-xa[i][0])*(x[i][j]-xa[i][0]);
}
xa[i][1]=sqrt(xa[i][1]/x[i][0]);
}
for(i=0;i<n;i++)
{
printf("%.5lf\n",xa[i][1]);
}
return 0;
}
|
38
|
18503
|
double f(double*a,int n)
{
double sum=0,p;
int i,j,k;
for(i=0;i<n;i++) sum+=*(a+i);
p=sum/n;sum=0;
for(i=0;i<n;i++) sum+=(*(a+i)-p)*(*(a+i)-p);
sum=sum/n;
sum=sqrt(sum);
return sum;
}
main()
{
int k;scanf("%d",&k);
int i,j,n;
double a[150];
double s;
for(i=0;i<k;i++)
{
scanf("%d",&n);for(j=0;j<n;j++) scanf("%lf",&a[j]);
s=f(a,n);
printf("%.5lf\n",s);
}
}
|
38
|
18504
|
//????
double sum(double *n,int N){
double sum=0;
for(int i=0;i<N;i++){
sum+=*(n+i);
}
return sum;
}
//??????
double average(double *n,int N){
return sum(n,N)/N;
}
//?????
double s(double* n,int N){
double a=average(n,N);
double sum2=0;
for(int i=0;i<N;i++){
sum2+=(a-*(n+i))*(a-*(n+i));
}
return pow(sum2/N,0.5);
}
//?????????????
int main(){
int m;
cin>>m;
cout<<fixed;
cout.precision(5);
while(m--){
int N;
cin>>N;
double n[N];
for(int i=0;i<N;i++){
cin>>n[i];
}
cout<<s(n,N)<<endl;
}
}
|
38
|
18505
|
int main()
{
int k,n,i,j;
double x[100][1000],a,s[100]={0},*px,*ps;
px=x[0];
ps=s;
scanf("%d",&k);
for(i=0;i<k;i++){
a=0;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",((px+i)+j));
}
for(j=0;j<n;j++){
a=a+*((px+i)+j);
}
a=a/n;
for(j=0;j<n;j++){
*(ps+i)=*(ps+i)+(*((px+i)+j)-a)*(*((px+i)+j)-a);
}
*(ps+i)=*(ps+i)/n;
*(ps+i)=sqrt(*(ps+i));
}
for(i=0;i<k;i++){
printf("%.5lf\n",*(ps+i));
}
return 0;
}
|
38
|
18506
|
int main()
{
int k;
scanf("%d",&k);
int i;
for(i=0;i<k;i++)
{
int n;
double c[100];
scanf("%d",&n);
int j;
for(j=0;j<n;j++)
{
scanf("%lf",&c[j]);
}
double aver,sum=0;
for(j=0;j<n;j++)
{
sum=sum+c[j];
}
aver=sum/n;
double x[100]={0};
for(j=0;j<n;j++)
{
x[j]=(c[j]-aver)*(c[j]-aver);
}
double SUM=0,AVER;
for(j=0;j<n;j++)
{
SUM=SUM+x[j];
}
AVER=SUM/n;
double average;
average=sqrt(AVER);
printf("%.5f\n",average);
}
}
|
38
|
18507
|
int main(){
int n;
scanf("%d",&n);
for(int p=0;p<n;p++){
int b;
scanf("%d",&b);
double x[100],he=0,a;
for (int i=0;i<b;i++){
scanf("%lf",&x[i]);
he+=x[i];
}
a=he/b;
double pfh=0;
for(int i=0;i<b;i++){
pfh+=(x[i]-a)*(x[i]-a);
}
double s;
s=pow(pfh/b,0.5);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18508
|
int main()
{
int k;
int n[100];
int j,i;
double x[100][100];
double s;
double t;
double h;
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n[i]);
for(j=0;j<n[i];j++){
scanf("%lf",&x[i][j]);
}
}
for(i=0;i<k;i++){
t=0;
for(j=0;j<n[i];j++){
t=t+x[i][j];
}
t=t/n[i];
s=0;
for(j=0;j<n[i];j++){
s=(x[i][j]-t)*(x[i][j]-t)+s;
}
h=sqrt(s/n[i]);
printf("%.5lf\n",h);
}
return 0;
}
|
38
|
18509
|
int main()
{
int i,j,row,n;
double s[1001],sum,c,ave,*f;
scanf("%d",&row);
for(i=1;i<=row;i++)
{
sum=0;
f=s;
scanf("%d",&n);
for(j=0;j<n;f++,j++)
{
scanf("%lf",f);
sum+=*f;
}
ave=sum/n;
f=s;
sum=0;
for(j=0;j<n;f++,j++)
{
sum+=(*f-ave)*(*f-ave);
}
c=sqrt(sum/n);
printf("%.5f\n", c);
}
}
|
38
|
18510
|
int main()
{
int k;
int n[100];
double z[100][100],x[100]={0},y[100]={0};
scanf("%d",&k);
for(int i=0;i<k;i++)
{
scanf("%d",&n[i]);
for(int j=0;j<n[i];j++)
{
scanf("%lf",&z[i][j]);
x[i]=x[i]+z[i][j];
}
x[i]=x[i]/(double)n[i];
for(int t=0;t<n[i];t++)
{
y[i]=y[i]+(z[i][t]-x[i])*(z[i][t]-x[i]);
}
y[i]=sqrt(y[i]/(double)n[i]);
printf("%.5lf\n",y[i]);
}
return 0;
}
|
38
|
18511
|
const int MAXNUM=100;
int main()
{
double data[MAXNUM],sum,ans;
int casenum,n;
cin>>casenum;
for(int i=0;i<casenum;i++)
{
cin>>n;
sum=0;ans=0;
for(int j=0;j<n;j++)
{scanf("%lf",&data[j]);sum+=data[j];}
for(int k=0;k<n;k++)
{ans+=(sum-n*data[k])*(sum-n*data[k]);}
ans=(double)sqrt((double)ans/pow(n,3));
printf("%.5lf\n",ans);
}
return 0;
}
|
38
|
18512
|
void main()
{
int k,i,j;
double * x[101];
double n;
scanf("%d",&k);
for(i=0;i<k;i++)
{
double a=0.0,s=0.0,S;
scanf("%lf",&n);
for(j=0;j<n;j++)
{
x[j]=(double *)malloc(sizeof(double));
scanf("%lf",x[j]);
a+=*x[j];
}
a=a/n;
for(j=0;j<n;j++)
{
s+=pow((*x[j]-a),2);
}
S=sqrt(s/n);
printf("%.5f\n",S);
}
}
|
38
|
18513
|
int main(int argc, char* argv[])
{
int k,i=0,j=0,n[100];
double x[100][100],aver[100],sum[100],S[100],s[100];
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n[i]);
j=0;
for(j=0;j<n[i];j++)
{
scanf("%lf",&x[i][j]);
sum[i]=sum[i]+x[i][j];
}
}
i=0;
for(i=0;i<k;i++)
{
aver[i]=sum[i]/n[i];
}
i=0;
for(i=0;i<k;i++)
{
j=0;
for(j=0;j<n[i];j++)
{
S[i]=S[i]+pow((x[i][j]-aver[i]),2);
}
}
i=0;
for(i=0;i<k;i++)
{
s[i]=pow(S[i]/n[i],1.0/2);
printf("%.5lf\n",s[i]);
}
return 0;
}
|
38
|
18514
|
int main(int argc, char *argv[])
{
int k,n,i,m;
double S,a;
scanf("%d",&k);
for(m=0;m<k;m++){
scanf("%d",&n);
double*x;
a=0;S=0;
x=(double*)malloc(sizeof(double)*n);
for(i=0;i<n;i++) {
scanf("%lf",&x[i]);
a+=x[i];
}
a=a/n;
for(i=0;i<n;i++){
S+=(x[i]-a)*(x[i]-a);
}
S=sqrt(S/n);
printf("%.5lf\n",S);
}
return 0;
}
|
38
|
18515
|
int main(){
int n,i,j;
double a[100],sum,jun,s,m;
double *p=a;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&m);
for(i=0;i<m;i++){
scanf("%lf",p+i);
}
sum=0;
for(i=0;i<m;i++){
sum=sum+*(p+i);
}
jun=sum/m;
sum=0;
for(i=0;i<m;i++){
sum=sum+(*(p+i)-jun)*(*(p+i)-jun);
}
s=sum/m;
s=sqrt(s);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18516
|
int main(){
int k,i,t,n;
scanf("%d",&k);
double *s=(double *)malloc(sizeof(double)*k);
double sum,a;
for(i=0;i<k;i++){
sum=0.0;
scanf("%d",&n);
double *x=(double *)malloc(sizeof(double)*n);
for(t=0;t<n;t++){
scanf("%lf",&x[t]);
sum+=x[t];
}
a=sum/n;
sum=0.0;
for(t=0;t<n;t++){
sum+=(x[t]-a)*(x[t]-a);
}
s[i]=sqrt(sum/n);
}
for(i=0;i<k;i++){
printf("%.5f\n",s[i]);
}
return 0;
}
|
38
|
18517
|
double f(int n,double *p[])
{
double a=0,s=0;
int i,j;
for(i=0;i<n;i++)
{
a=a+**(p+i);
}
a=a/n;
for(i=0;i<n;i++)
{
**(p+i)=(**(p+i)-a)*(**(p+i)-a);
s=s+**(p+i);
}
s=sqrt(s/n);
return s;
}
void main()
{
int k,n,i,j;
double *q;
double *p[100];
scanf("%d",&k);
for(i=1;i<=k;i++)
{
scanf("%d",&n);
q=(double *)malloc(n*sizeof(double));
for(j=0;j<n;j++)
*(p+j)=q+j;
for(j=0;j<n;j++)
{
scanf("%lf",*(p+j));
}
printf("%.5f\n",f(n,p));
free(q);
}
}
|
38
|
18518
|
int main()
{
int n,i,j,s;
double x[1000],b[100]={0.00},sum=0.0000000000,ave,p=0.0000000000000,r;
scanf("%d",&n);
for(i=0;i<n;i++){
s=(int)(s);
s=0;
sum=0.0000000;
ave=0.00000;
r=0.00000;
p=0.000000;
scanf("%d",&s);
for(j=0;j<s;j++){
scanf("%lf",&x[j]);
sum+=x[j];
}
ave=sum/(double)(s);
for(j=0;j<s;j++){
p=p+(double)(pow(fabs((x[j]-ave)),2.00));
}
r=p/(double)(s);
b[i]=(double)(sqrt(r));
for(j=0;j<s;j++){
x[j]=0.0000;
}
}
for (i=0;i<n;i++){
printf("%.5lf\n",b[i]);
}
return 0;
}
|
38
|
18519
|
int main()
{
int n;
int x,y,z;
double sum=0,sum1=0;
double a[1000],b,c,d;
scanf("%d",&n);
int i,j;
for(i=0;i<n;i++)
{ sum=0;sum1=0;
int m;
scanf("%d",&m);
for(j=0;j<m;j++)
{
scanf("%lf",&a[j]);
sum+=a[j];
}
b=sum/m;
for(j=0;j<m;j++)
{
c=pow(a[j]-b,2);
sum1+=c;
}
d=pow(sum1/m,0.5);
printf("%.5lf\n",d);
}
return 0;
}
|
38
|
18520
|
int main(int argc, char* argv[])
{
int i,j,k,n;
double a[100];
scanf("%d",&k);
for(i=0;i<k;i++)
{
double sum=0.00,aver=0.00,y=0.00,s=0.00;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&a[j]);
sum+=a[j];
}
aver=sum/j;
for(j=0;j<n;j++)
y=y+(a[j]-aver)*(a[j]-aver);
s=sqrt(y/n);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18521
|
int main(){
int n=0,i=0;
scanf("%d",&n);
for(i=0;i<n;i++){
double s=0,squs=0;
int a=0,j=0;
scanf("%d",&a);
for(j=0;j<a;j++){
double num=0;
scanf("%lf",&num);
s=s+num;
squs=squs+(num*num);
}
double ave=0;
ave=s/a;
double ss=0;
ss=sqrt((squs-(2*ave*s)+(a*ave*ave))/a);
printf("%.5lf\n",ss);
}
return 0;
}
|
38
|
18522
|
int main(){
int n;
scanf("%d",&n);
int i;
double sz[n];
for(i=0;i<n;i++){
int n1;
scanf("%d",&n1);
int j;
double sz1[n1];
double num=0;
for(j=0;j<n1;j++){
scanf("%lf",&(sz1[j]));
num+=sz1[j]/n1;
}
double s=0;
for(j=0;j<n1;j++){
s+=(sz1[j]-num)*(sz1[j]-num)/n1;
}
double s1=sqrt(s);
sz[i]=s1;
}
for(i=0;i<n;i++){
printf("%.5lf\n",sz[i]);
}
return 0;
}
|
38
|
18523
|
main()
{
int k;
scanf("%d",&k);
int i=1;
int n;
for(i;i<=k;i++)
{
scanf("%d",&n);
int j=0;
double sum=0;
double a[100];
double s=0;
for(j=0;j<n;j++)
{scanf("%lf",&a[j]);
sum=sum+a[j];}
sum=sum/n;
for(j=0;j<n;j++)
s=s+pow(sum-a[j],2);
s=s/n;
s=sqrt(s);
printf("%.5lf\n",s);
}
}
|
38
|
18524
|
void display(double n)
{
double *index,ave,ele[1000],sum=0,answer;
int i=0;
index=ele;
for(i;i<n;i++)
{
scanf("%lf",&ele[i]);
sum+=ele[i];
}
ave=sum/n;
sum=0;
for(i=0;i<n;i++)
{
sum+=pow(ele[i]-ave,2);
}
sum=(double)sum/n;
answer=pow(sum,0.5);
printf("%.5f",answer);
}
double main()
{
double k,n,i;
scanf("%lf",&k);
for(i=0;i<k;i++){
scanf("%lf",&n);
if(i!=0) printf("\n");
display(n);
}
return 0;
}
|
38
|
18525
|
double myaverage(double *);
double quaresum(double *);
double junfangcha(double *);
int n;
double sz[100];
int main(int argc, char* argv[])
{
int k,i,j;
scanf("%d",&k);
for(i=0 ; i<k ; i++){
scanf("%d",&n);
for(j=0 ; j<n ; j++){
scanf("%lf",&sz[j]);
}
printf("%.5f\n",junfangcha(sz));
}
return 0;
}
double myaverage( double *sz )
{
double x=0.0;
int i;
for(i=0 ; i<n ; i++)
x += *(sz+i);
x /=n;
return x;
}
double quaresum( double *sz )
{
double x=0.0,a;
int i;
a = myaverage( sz );
for(i=0 ; i<n ; i++)
x += ( *(sz+i) - a ) * ( *(sz+i) - a );
return x;
}
double junfangcha( double *sz )
{
return sqrt( quaresum( sz ) /n );
}
|
38
|
18526
|
int main()
{
int k,n[100],i,j;
double x[100][100],sum[100]={0},sum1[100]={0},re[100];
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n[i]);
for(j=0;j<n[i];j++)
{
scanf("%lf",&x[i][j]);
sum[i]+=x[i][j];
}
}
for(i=0;i<k;i++)
{
for(j=0;j<n[i];j++)
{
sum1[i]+=((x[i][j]-sum[i]/n[i])*(x[i][j]-sum[i]/n[i]));
}
re[i]=sqrt(sum1[i]/n[i]);
printf("%.5lf\n",re[i]);
}
return 0;
}
|
38
|
18527
|
int main()
{
int k,n,i,j;
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n);
double a[n];
for(j=0;j<n;j++)
scanf("%lf",&a[j]);
double x=0,y=0;
for(j=0;j<n;j++)
x=x+a[j];
x=x/n;
for(j=0;j<n;j++)
y=y+(a[j]-x)*(a[j]-x);
y=sqrt(y/n);
printf("%.5lf\n",y);}
return 0;
}
|
38
|
18528
|
int main()
{
int i,j;
double k,n[100],x[100],a[100],b[100],c[100],d[100];
scanf("%lf",&k);
for(i=0;i<k;i++)
{
a[i]=0;
c[i]=0;
scanf("%lf",&n[i]);
for(j=0;j<n[i];j++)
scanf("%lf",&x[j]);
for(j=0;j<n[i];j++)
a[i]=a[i]+x[j];
b[i]=a[i]/n[i];
for(j=0;j<n[i];j++)
c[i]=c[i]+(x[j]-b[i])*(x[j]-b[i]);
d[i]=sqrt(c[i]/n[i]);
}
for(i=0;i<k;i++)
printf("%.5lf\n",d[i]);
return 0;
}
|
38
|
18529
|
void display(double n)
{
double *index,ave,ele[1000],sum=0,answer;
int i=0;
index=ele;
for(i=0;i<n;i++,index+=LEN)
{
scanf("%lf",index);
sum+=*index;
}
ave=sum/n;
sum=0;
for(i=0,index=ele;i<n;index+=LEN,i++)
{
sum+=pow(*index-ave,2);
}
sum=(double)sum/n;
answer=pow(sum,0.5);
printf("%.5f",answer);
}
double main()
{
double k,n,i;
scanf("%lf",&k);
for(i=0;i<k;i++){
scanf("%lf",&n);
if(i!=0) printf("\n");
display(n);
}
return 0;
}
|
38
|
18530
|
int main(){
int n,i=0,j;
double s[100];
int num;
double A=0,a;
double b[1000];
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d",&num);
A=0;
for(j=0;j<num;j++){
scanf("%lf",&b[j]);
A+=b[j];
}
a=A/num;
s[i]=0;
for(j=0;j<num;j++){
s[i]+=(b[j]-a)*(b[j]-a);
}
s[i]=(s[i]/num);
s[i]=sqrt(s[i]);
}
for(i=0;i<n;i++){
printf("%.5lf\n",s[i]);
}
return 0;
}
|
38
|
18531
|
int main()
{
int n;
scanf("%d",&n);
int x=0;
double sum=0,s=0;
double z[100];
for(int i=0;i<n;i++)
{
scanf("%d",&x);
for(int j=0;j<x;j++)
{
scanf("%lf",&(z[j]));
sum=sum+z[j];
}
for(int f=0;f<x;f++)
{
s=s+(z[f]-sum/x)*(z[f]-sum/x);
}
s=s/x;
s=pow(s,0.5);
printf("%0.5lf\n",s);
sum=0;
s=0;
}
return 0;
}
|
38
|
18532
|
int main()
{
int k,n,i,j,t;
double x[100],S,sum2,sum1,aver1,aver2;
scanf("%d",&k);
for(i=0;i<k;i++){
sum1=0.0,aver1=0.0;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&x[j]);
sum1+=x[j];}
aver1=(double)sum1/n;
sum2=0.0,aver2=0.0;
for(t=0;t<n;t++){
sum2+=(x[t]-aver1)*(x[t]-aver1);
}
aver2=(double)sum2/n;
S=(double)sqrt(aver2);
printf("%.5f\n",S);
}
return 0;
}
|
38
|
18533
|
double S(int m)
{
double a[m],aver=0,sum=0;
int i;
for(i=0;i<m;i++)
{
scanf("%lf",&a[i]);
aver+=a[i];
}
aver/=m;
for(i=0;i<m;i++)
sum+=(a[i]-aver)*(a[i]-aver);
return (sqrt(sum/m));
}
int main()
{
int n,m;
for(scanf("%d",&n);n>0;n--)
{
scanf("%d",&m);
printf("%.5f\n",S(m));
}
return 0;
}
|
38
|
18534
|
int main()
{
int n,m;
cin >> m;
double a[102];
double s=0,av=0;
for(int k=0;k<m;k++)
{
cin >> n;
s=0;
for(int i=0;i<n;i++)
{
cin >> a[i];
s+=a[i];
}
av=s/n;
s=0;
for(int i=0;i<n;i++)
{
s+=(a[i]-av)*(a[i]-av);
}
cout << setprecision(5)<< fixed << sqrt(s/n)<<endl;
}
}
|
38
|
18535
|
int main()
{
double x[1000], a, z, s, S[100];
int n, i, e, f;
scanf("%d", &n);
for(e=0;e<n;e++){
scanf("%d", &i);
z=0;
s=0;
for(f=0;f<i;f++){
scanf("%lf", &x[f]);
z+=x[f];
}
a=z/i;
for(f=0;f<i;f++){
s+=pow(x[f]-a,2);
}
S[e]=pow(s/i,0.5);
}
for(e=0;e<n;e++)
printf("%.5lf\n", S[e]);
return 0;
}
|
38
|
18536
|
double fangcha(double array[],int k)
{
double sum=0;
for(int i=0;i<k;i++){
sum+=array[i];}
double arrange=sum/k;
double array2[101];
for(int i=0;i<k;i++){
array2[i]=(array[i]-arrange)*(array[i]-arrange);}
double sum2=0;
for(int i=0;i<k;i++){
sum2+=array2[i];}
double result=sqrt(sum2/k);
return result;
}
int main()
{
int n;
cin>>n;
for(int i=0;i<n;i++){
int k;
double num[101];
cin>>k;
for(int j=0;j<k;j++){
cin>>num[j];}
printf("%.5lf\n",fangcha(num,k));}
return 0;
}
|
38
|
18537
|
int main()
{
int k;
double A[100],ave,s=0;
cin>>k;
for(int j=0;j<k;j++)
{s=0;
double *p=&A[0];
ave=0;
int n;
cin>>n;
for(int i=0;i<n;i++)
{
cin>>A[i];
ave+=A[i];
}
ave=ave/n;
for(int i=0;i<n;i++)
{
s+=(A[i]-ave)*(A[i]-ave);
}
s=sqrt(s/n);
cout<<fixed<<setprecision(5)<<s;;
cout<<endl;
}
return 0;
}
|
38
|
18538
|
int main(){
int n,i,j,m[100];
double a[200],sum=0,pingfanghe=0,l,s[200],ave;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d",&m[i]);
for(j=0;j<m[i];j++){
scanf("%lf",&a[j]);
sum+=a[j];
}
ave=sum/m[i];
for(j=0;j<m[i];j++){
l=(a[j]-ave)*(a[j]-ave);
pingfanghe+=l;
}
s[i]=sqrt(pingfanghe/m[i]);
sum=0;
pingfanghe=0;
ave=0;
}
for(i=0;i<n;i++){
printf("%.5lf\n",s[i]);
}
return 0;
}
|
38
|
18539
|
void main()
{
int k,i,j,n;
double *S,*a,b;
scanf("%d",&k);
S=(double *)malloc(sizeof(double)*k);
for(i=0;i<k;i++) *(S+i)=0;
for (i=0;i<k;i++)
{
scanf("%d",&n);
a=(double *)malloc(sizeof(double)*n);
b=0;
for (j=0;j<n;j++)
{
scanf("%lf",a+j);
b+=*(a+j);
}
b=b/n;
for (j=0;j<n;j++) *(S+i)+=(*(a+j)-b)*(*(a+j)-b);
*(S+i)/=n;
*(S+i)=sqrt(*(S+i));
free(a);
}
for (i=0;i<k;i++) printf("%.5f\n",*(S+i));
}
|
38
|
18540
|
int main ()
{
int i,j;
int n;
scanf("%d",&n);
for(j=0;j<n;j++)
{
float a,b;
a=0;
int m;
scanf("%d",&m);
float szj[m];
for(i=0;i<m;i++)
{
scanf("%f",&szj[i]);
a+=szj[i];
}
b=(float)a/m;
double c,d,e;
c=0;
for(i=0;i<m;i++)
{
c+=(double)(szj[i]-b)*(szj[i]-b);
}
d=(double)c/m;
e=sqrt(d);
printf("%.5lf\n",e);
}
return 0;
}
|
38
|
18541
|
void main()
{
double *p[100][1000],*q[100],*a[100];
int n,i,j,*num[100];
scanf("%d",&n);
for(i=0;i<n;i++)
{
*(num+i)=( int * )malloc(sizeof(int));
*(a+i)=( double * )malloc(sizeof(double));
*(q+i)=( double * )malloc(sizeof(double));
scanf("%d",*(num+i));
for(j=0;j<**(num+i);j++)
{
*(*(p+i)+j)=( double * )malloc(sizeof(double));
scanf("%lf",*(*(p+i)+j));
}
for(j=0,**(a+i)=0;j<**(num+i);j++)
{
**(a+i)=**(a+i)+**(*(p+i)+j);
}
**(a+i)=**(a+i)/(**(num+i));
for(j=0,**(q+i)=0;j<**(num+i);j++)
{
**(q+i)=**(q+i)+pow((**(*(p+i)+j)-**(a+i)),2);
}
**(q+i)=**(q+i)/(**(num+i));**(q+i)=sqrt(**(q+i));
printf("%.5f\n",**(q+i));
}
}
|
38
|
18542
|
int main()
{
int n,i,j,k;
double a[100],sum,ave,s2;
double *p;
scanf("%d",&k);
for(i=1;i<=k;i++)
{
p=a;
scanf("%d",&n);
sum=0;
for(j=1;j<=n;j++)
{
scanf("%lf",p+j-1);
sum+=*(p+j-1);
}
ave=sum/n;
s2=0;
for(j=1;j<=n;j++)
{
s2+=(*(p+j-1)-ave)*(*(p+j-1)-ave);
}
printf("%.5lf\n",sqrt(s2/n));
}
}
|
38
|
18543
|
void main()
{
int cases;
scanf("%d",&cases);
while(cases--)
{
int n;
scanf("%d",&n);
double *p;
p=(float*)calloc(n,sizeof(float));
int i;double j;
for(i=0;i<n;i++) scanf("%lf",p++);
p=p-n;
double*f;
f=p;
double sum=0;
for(i=0;i<n;i++,f++) sum=sum+(*f);
double x=sum/n;
double x1=0;
f=p;
for(i=0;i<n;i++,f++) x1=x1+(*f-x)*(*f-x);
double x2;
x2=sqrt(x1/n);
printf("%.5f\n",x2);
}
}
|
38
|
18544
|
int main()
{
int m,i,j;
double a[100]={0},c=0,s=0,n;
scanf("%d",&m);
for(j=0;j<m;j++){
double sum=0,ave=0, total=0,pf=0;
scanf("%lf",&n);
for(i=0;i<n;i++){
scanf("%lf",&a[i]);
sum+=a[i];
ave=sum/n;
}
for(i=0;i<n;i++){
pf=(a[i]-ave)*(a[i]-ave);
total+=pf;
}
c=total/n;
s=sqrt(c);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18545
|
int main(int argc, char* argv[])
{
int k,n[111],i,j;
double x[111][111];
double a[111],s[111],m[111],S[111];
scanf ("%d",&k);
for (i=0;i<k;i++)
{
scanf ("%d",&n[i]);
for (j=0;j<n[i];j++)
{
scanf ("%lf",&x[i][j]);
}
}
for (i=0;i<k;i++)
{
s[i]=0;
for (j=0;j<n[i];j++)
{
s[i]+=x[i][j];
}
a[i]=s[i]/n[i];
}
for (i=0;i<k;i++)
{
m[i]=0;
for (j=0;j<n[i];j++)
{
m[i]+=(x[i][j]-a[i])*(x[i][j]-a[i]);
}
S[i]=sqrt(m[i]/n[i]);
printf("%.5lf\n",S[i]);
}
return 0;
}
|
38
|
18546
|
int main()
{
int k,i,j,n[N];
scanf("%d",&k);
double a[N],S[N];
for(i=0;i<k;i++)
{
scanf("%d",&n[i]);
S[i]=0.0;
double sum=0.0,x[M];
for(j=0;j<n[i];j++)
{
scanf("%lf",&x[j]);
sum+=x[j];
}
a[i]=sum/n[i];
for(j=0;j<n[i];j++)
{
S[i]+=(x[j]-a[i])*(x[j]-a[i]);
}
S[i]=sqrt(S[i]/n[i]);
}
for(i=0;i<k;i++)
{
printf("%.5f\n",S[i]);
}
return 0;
}
|
38
|
18547
|
int main(){
int n,k,i,j;
double sz[100],sum=0,p,q,w;
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&sz[j]);
}
for(j=0;j<n;j++){
sum+=sz[j];
}
p=sum/n;
sum=0;
for(j=0;j<n;j++){
sum+=(sz[j]-p)*(sz[j]-p);
q=sum/n;
}
w=sqrt(q);
printf("%.5lf\n",w);
sum=0;
}
}
|
38
|
18548
|
int main(int argc, char* argv[])
{
int i,j,k,n;
double x[100],s,a=0,b=0,c[100],d=0;
scanf("%d",&k);
for(i=0;i<k;i++)
{
a=0;
b=0;
d=0;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
b=(double)x[j]/n;
a+=b;
}
for(j=0;j<n;j++)
{
c[j]=x[j]-a;
d=d+pow(c[j],2);
s=(double)sqrt(d/n);
}
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18549
|
int main()
{
int k,i,n,j=0;
scanf("%d",&k);
double x[100];
while(j<k)
{
double a=0,s=0;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf",&(x[i]));
}
for(i=0;i<n;i++)
{
a+=x[i];
}
a=a/(n*1.0);
for(i=0;i<n;i++)
{
s+=(x[i]-a)*(x[i]-a);
}
s=s/(n*1.0);
s=sqrt(s);
printf("%.5lf\n",s);
j++;
}
return 0;
}
|
38
|
18550
|
double fangcha(double *pi,int n)
{
int i;
double *pa;
pa=pi;
// printf("hanshu%lf\n",*pi);
double sum=0,ave;
for(i=0;i<n;i++)
{
sum+=*pi;
pi++;
}
ave=sum/n;
// printf("hanshuave=%lf\n",ave);
double s=0;
for(i=0;i<n;i++)
{
s+=((*pa-ave)*(*pa-ave));
*pa++;
// printf("hanshuzhongs1=%lf\n",s);
}
// printf("hanshuzhongs1=%lf\n",s);
s=s/(double)n;
// printf("hanshuzhongs2=%lf\n",s);
s=sqrt(s);
return s;
}
int main()
{
int k,i,j;
double x[100][100];
int b[100];
double xx[100];
scanf("%d",&k);
// printf("%d",k);
for(i=0;i<k;i++)
{
scanf("%d",&b[i]);
for(j=0;j<b[i];j++)
{
scanf("%lf",&x[i][j]);
// printf("%lf")
}
}
double *pi;
for(i=0;i<k;i++)
{
pi=&x[i][0];
// printf("waiwei%lf\n",*pi);
xx[i]=fangcha(pi,b[i]);
printf("%.5f\n",xx[i]);
}
return 0;
}
|
38
|
18551
|
int main(int argc, char* argv[])
{
int n,k,i,j;
double a[1000],b,d,S,c;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%d",&k);
for(j=1;j<=k;j++)
{
scanf("%lf",&a[j]);
}
b=0;
d=0;
for(j=1;j<=k;j++){
b=b+a[j];
}
c=b/k;
for(j=1;j<=k;j++){
d=d+(a[j]-c)*(a[j]-c);
S=sqrt(d/k);
}
printf("%.5lf\n",S);
}
return 0;
}
|
38
|
18552
|
int main(){
int k,n;
double sum=0,a[101];
cin>>k;
for(int i=1;i<=k;i++){
cin>>n; sum = 0;
for(int j=1;j<=n;j++){
cin>>a[j];
sum += a[j];
}
double b=sum/n;
double sum2=0;
for(int j=1;j<=n;j++){
sum2+=(a[j]-b)*(a[j]-b);
}
double S=sqrt(sum2/n);
printf("%.5f\n",S);
}
return 0;
}
|
38
|
18553
|
int main()
{
int k;
cin>>k;
for(int i=0;i<=k-1;i++)
{
double n;
cin>>n;
double a[100],sum=0,pingjun,sum1=0;
for(int s=0;s<=n-1;s++)
{
cin>>a[s];
}
for(int s=0;s<=n-1;s++)
{
sum=sum+a[s];
}
pingjun=sum/n;
for(int s=0;s<=n-1;s++ )
{
sum1=sum1+(a[s]-pingjun)*(a[s]-pingjun);
}
cout<<fixed<<setprecision(5)<<sqrt((1/n)*sum1)<<endl;
}
return 0;
}
|
38
|
18554
|
int main()
{
int k,i;
double s[100];
scanf("%d",&k);
for(i=0;i<k;i++){
int m,j;
scanf("%d",&m);
double a[100],b=0,c,d[100],e=0,f;
for(j=0;j<m;j++){
scanf("%lf",&a[j]);
b=b+a[j];}
c=(double)b/m;
for(j=0;j<m;j++){
d[j]=(double)(a[j]-c)*(a[j]-c);
e=e+d[j];
}
f=(double)e/m;
s[i]=sqrt(f);}
for(i=0;i<k;i++)
printf("%.5lf\n",s[i]);
return 0;
}
|
38
|
18555
|
int main()
{
int k,n,i,j;
double a[1000],s1[100]={0},s2[100]={0},s[100],aver[100];
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%lf",&a[i]);
s1[j]+=a[i];
}
aver[j]=s1[j]/k;
for(i=0;i<k;i++){
s2[j]+=(a[i]-aver[j])*(a[i]-aver[j]);
}
s[j]=sqrt(s2[j]/k);
}
for(j=0;j<n;j++){
printf("%.5lf\n",s[j]);
}
return 0;
}
|
38
|
18556
|
int main(){
int n,year[200],month1[200],month2[200],i=0,e=0,j=0,k=0;
double a[50],b=0,s=0,sum=0,average=0;
scanf("%d",&k);
while(i<k){
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&a[j]);
sum+=a[j];
}
average=sum/n;
for(j=0;j<n;j++){
b+=(a[j]-average)*(a[j]-average);
}
s=sqrt(b/n);
printf("%.5lf\n",s);
sum=0;
average=0;
s=0;
b=0;
i++;
}
return 0;
}
|
38
|
18557
|
main()
{
int k,i,n;
double a[1000],ave,sum,c2[1000];
scanf("%d",&n);
while(n--)
{
ave=0;
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%lf",&a[i]);
ave+=a[i]/k;
}
sum=0;
for(i=0;i<k;i++)
{
c2[i]=(a[i]-ave)*(a[i]-ave);
sum+=c2[i]/k;
}
printf("%.5lf\n",sqrt(sum));
}
}
|
38
|
18558
|
int main()
{
int k,n[100],i,j;
double x[1000],ave=0.00,sum=0.00,s[100];
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n[i]);
for(j=0;j<n[i];j++)
{
scanf("%lf",&x[j]);
ave=ave+x[j];
}
ave=ave/n[i];
for(j=0;j<n[i];j++)
{
sum=sum+(x[j]-ave)*(x[j]-ave);
}
s[i]=sqrt(sum/n[i]);
ave=0.00;
sum=0.00;
}
printf("%.5f",s[0]);
for(i=1;i<k;i++)
{
printf("\n%.5f",s[i]);
}
return 0;
}
|
38
|
18559
|
int main(){
int k,n,i,j;
double sum1,sum2,r[100],a[100];
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
sum1=0;
for(j=0;j<n;j++){
scanf("%lf",&a[j]);
sum1+=a[j];
}
sum1=sum1/n;
sum2=0;
for(j=0;j<n;j++){
sum2+=(a[j]-sum1)*(a[j]-sum1);
}
r[i]=sqrt(sum2/n);
}
for(i=0;i<k;i++){
printf("%.5f\n",r[i]);
}
return 0;
}
|
38
|
18560
|
void main()
{
int k,n,i,j;
double *p,*q,f,sum1,sum2,s,m,a[1000];//m?????
scanf("%d",&k);
for(i=1;i<=k;i++)
{
p=a;
sum1=0;sum2=0;
scanf("%d",&n);
for(j=1;j<=n;j++,p++)
{
scanf("%lf",p);
sum1+=*p;
}
m=sum1/n;
p=a;
for(q=p;q!=p+n;q++)
{
sum2+=(*q-m)*(*q-m);
}
s=sqrt(sum2/n);
printf("%.5f\n",s);
}
}
|
38
|
18561
|
int main(int argc, char* argv[])
{
int k,n,i,j;
scanf("%d",&k);
double x[100],s,a,y1,y2,y;
for(i=0;i<k;i++)
{
scanf("%d",&n);
s=0;
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
s=s+x[j];
}
a=s/n;
y1=0;
for(j=0;j<n;j++)
{
y1=y1+(x[j]-a)*(x[j]-a);
}
y2=y1/n;
y=sqrt(y2);
printf("%.5f\n",y);
}
return 0;
}
|
38
|
18562
|
int main()
{
int m, n, i, j;
double *p;
double a[1010], sum, average, result;
cin >> m;
for (i = 1; i <= m; i++)
{
memset (a, 0, sizeof (a));
sum = 0;
average = 0;
result = 0;
cin >> n;
p = a;
for (j = 0; j < n; j++)
{
cin >> *(p + j);
sum += *(p + j);
}
average = sum / n;
sum = 0.0;
for (j = 0; j < n; j++)
{
*(p + j) = pow ((*(p + j) - average), 2);
sum += *(p + j);
}
average = sum / n;
result = sqrt (average);
cout << fixed << setprecision(5) << result << endl;
}
return 0;
}
|
38
|
18563
|
/*?5?????????????????????????????,?4?5?????????????*/
int main()
{
int m,i,a[100],j;
double *p[100],S;
double fang(double *p[],int);
scanf("%d\n",&m);
for(i=0;i<m;i++)
{
scanf("%d\n",&a[i]);
for(j=0;j<a[i];j++)
{
*(p+j)=(double *)malloc(len);
scanf("%lf",*(p+j));
}
S=fang(p,a[i]);
printf("%.5f\n",S);
}
}
double fang(double *p[],int n)
{
double c,a,T,S;
int i;
for(i=0,c=0;i<n;i++)
c=c+*(*(p+i));
a=c/n;
for(i=0,T=0;i<n;i++)
T=T+(*(*(p+i))-a)*(*(*(p+i))-a);
S=sqrt(T/n);
return S;
}
|
38
|
18564
|
main()
{
int k,n;
double *p;
double s,a,x;
int i,j;
scanf("%d",&k);
for(i=0;i<k;i++)
{
s=0;
a=0;
x=0;
scanf("%d",&n);
p=(double*)malloc(sizeof(double)*n);
for(j=0;j<n;j++)
{
scanf("%lf",&p[j]);
x=x+p[j]/n;
}
for(j=0;j<n;j++)
{
a=a+(p[j]-x)*(p[j]-x);
}
s=sqrt(a/n);
printf("%.5lf\n",s);
}
}
|
38
|
18565
|
int main()
{
int n,m[100],i,j;
double x[1000],y[100],z[100]={0},p[100],g[100];
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%d",&m[j]);
for(i=0;i<m[j];i++)
{
scanf("%lf",&x[i]);
z[j]+=x[i];
}
p[j]=z[j]/m[j];
for(i=0;i<m[j];i++)
y[j]+=pow(x[i]-p[j],2);
g[j]=sqrt(y[j]/m[j]);
}
for(j=0;j<n;j++)
printf("%0.5lf\n",g[j]);
return 0;
}
|
38
|
18566
|
int main()
{
double shuru[100],*shu=shuru,fangjungen(double *shu,int k);
int n,k,i,j;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d",&k);
for(j=0;j<k;j++)
scanf("%lf",&*(shu+j));
printf("%.5lf\n",fangjungen(shu,k));
}
return 0;
}
double fangjungen(double *shu,int k)
{
int i;
double zong=0.0,pingjun,result;
for(i=0;i<k;i++)
zong=zong+*(shu+i);
pingjun=zong/k;
zong=0.0;
for(i=0;i<k;i++)
zong=zong+(*(shu+i)-pingjun)*(*(shu+i)-pingjun);
result=sqrt((zong/k));
return result;
}
|
38
|
18567
|
int main()
{
int k;
int i,j;
scanf("%d",&k);
double *num,*avr;
num=(double *)malloc(sizeof(double)*k);
avr=(double *)malloc(sizeof(double)*k);
for(i=0;i<k;i++){
num[i]=0;
avr[i]=0;
}
int n;
for(i=0;i<k;i++){
scanf("%d",&n);
double *a;
a=(double *)malloc(sizeof(double)*n);
for(j=0;j<n;j++){
scanf("%lf",&a[j]);
avr[i]+=a[j]/n;
}
for(j=0;j<n;j++){
num[i]+=(pow((a[j]-avr[i]),2)/n);
}
num[i]=pow(num[i],0.5);
free(a);
}
for(i=0;i<k;i++){
printf("%.5lf\n",num[i]);
}
return 0;
}
|
38
|
18568
|
int main() {
int k;
scanf("%d", &k);
while (k--) {
int n;
scanf("%d", &n);
double *x = (double *) malloc(n * sizeof(double));
int i;
double avg = 0;
for (i = 0; i < n; i++) {
scanf("%lf", x + i);
avg += x[i];
}
avg /= n;
double s = 0;
for (i = 0; i < n; i++)
s += (x[i] - avg) * (x[i] - avg);
s /= n;
s = sqrt(s);
printf("%.5f\n", s);
free(x);
}
return 0;
}
|
38
|
18569
|
int main(){
int i,j,k,n;
double sum,a,b,S;
double x[100];
scanf("%d",&k);
for(j=0;j<k;j++){
sum=0.0;
a=0.0;
b=0.0;
S=0.0;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%lf",&x[i]);
sum+=x[i];
}
a=sum/n;
for(i=0;i<n;i++){
b+=(x[i]-a)*(x[i]-a);
}
S=sqrt(b/n);
printf("%.5f\n",S);
}
return 0;
}
|
38
|
18570
|
int main()
{
int n,i,j;
scanf("%d",&n);
int k[100];
double sum[100]={0};
double a[100];
double s[100];
double h[100];
double b[100];
for(i=0;i<n;i++)
{
scanf("%d",&k[i]);
for(j=0;j<k[i];j++)
{
scanf("%lf",&a[j]);
sum[i]=sum[i]+a[j];
}
b[i]=sum[i]/k[i];
for(j=0;j<k[i];j++)
{
h[i]=h[i]+(a[j]-b[i])*(a[j]-b[i]);
}
s[i]=sqrt(h[i]/k[i]);
printf("%.5lf\n",s[i]);
}
return 0;
}
|
38
|
18571
|
int main()
{
int k, i, len[101];
double *q = NULL;
double s[101], a[101], sum[101] = {0}, qsum[101] = {0}, p[1000];
cin >> k;
for(i = 0; i < k; i++)
{
cin >> len[i];
q = p;
for( ; q < p+len[i]; q++)
{
cin >> *q;
sum[i] += *q;
qsum[i] += (*q) * (*q);
}
a[i] = sum[i] / len[i];
qsum[i] -= len[i] * a[i] * a[i];
s[i] = sqrt(qsum[i] / len[i]);
cout << fixed << setprecision(5) << s[i] << endl;
}
return 0;
}
|
38
|
18572
|
int main(){
int k,n,i,j,b=0;
double s[1000],a,S,sum,SS,aa[1000];
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
sum=0;SS=0;
for(j=0;j<n;j++){
scanf("%lf",&s[j]);
sum+=s[j];
}
a=sum/n;
for(j=0;j<n;j++){
SS+=(s[j]-a)*(s[j]-a);
}
S=sqrt(SS/n);
aa[b]=S;
b++;
}
for(int h=0;h<b;h++){
printf("%.5lf\n",aa[h]);}
return 0;
}
|
38
|
18573
|
int main(){
double f[100];
double sum=0.0,a=0.0,s=0.0,S;
int k;
scanf("%d",&k);
for(int i=0;i<k;i++){
int n;
scanf("%d",&n);
for(int j=0;j<n;j++){
scanf("%lf",&(f[j]));
sum+=f[j];
}
a=sum*1.0/n;
for(int j=0;j<n;j++){
s+=pow(f[j]-a,2);
}
S=pow(s*1.0/n,1.0/2);
printf("%.5lf\n",S);
sum=0.0;
s=0.0;
}
return 0;
}
|
38
|
18574
|
int main()
{
int N,M;
double A[2013],S;
cin >> N;
for (int I = 1; I <= N; I ++)
{
cin >> M;
for (int J = 1; J <= M; J ++) cin >> A[J];
double *P = A;
S = 0;
for (int J = 1; J <= M; J ++) S += *(P + J);
S /= M;
double Ans = 0;
for (int J = 1; J <= M; J ++) Ans = Ans + (*(P + J) - S) * (*(P + J) - S);
printf("%.5lf\n",sqrt(Ans/M));
}
}
|
38
|
18575
|
double sz[100];
void Read(double n)
{
int i;
for(i=0; i<n; i++)
scanf("%lf", (sz+i));
}
void Calculate(double n)
{
int i;
double S, x, sum=0;
for(i=0; i<n; i++)
sum+=*(sz+i);
x=sum/n;
sum=0;
for(i=0; i<n; i++)
sum+=pow((*(sz+i)-x),2);
S=pow((sum/n),0.5);
printf("%.5f\n", S);
}
int main()
{
int m, i;
double n;
scanf("%d", &m);
for(i=0; i<m; i++)
{
scanf("%lf", &n);
Read(n);
Calculate(n);
}
return 0;
}
|
38
|
18576
|
int main()
{
int n,ge[100];
double shu[100][1000],pingjun[100]={0},s[100]={0};
int i,j;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&ge[i]);
for(j=0;j<ge[i];j++)
{
scanf("%lf",&shu[i][j]);
pingjun[i]+=shu[i][j]/ge[i];
}
}
for(i=0;i<n;i++)
{
for(j=0;j<ge[i];j++)
{
s[i]+=pow((shu[i][j]-pingjun[i]),2)/ge[i];
}
printf("%.5lf\n",sqrt(s[i]));
}
return 0;
}
|
38
|
18577
|
int main()
{
int m,n,i,j;
double ave,num[100][1000],sum=0;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&m);
ave=0;sum=0;
for(j=0;j<m;j++)
{
scanf("%lf",&num[i][j]);
sum=sum+num[i][j];
}
ave=(double)sum/m;
sum=0;
for(j=0;j<m;j++)
{
num[i][j]=num[i][j]-ave;
num[i][j]=num[i][j]*num[i][j];
sum=sum+num[i][j];
}
ave=(double)sum/m;
ave=(double)sqrt(ave);
printf("%.5lf\n",ave);
}
}
|
38
|
18578
|
int main()
{
int n,i;
scanf("%d\n",&n);
for(i=1;i<=n;i++){
int m,k;
scanf("%d\n",&m);
double num[m];
for(k=0;k<m;k++){
scanf("%lf\n",&num[k]);
}
double p=num[0],q;
for(k=1;k<m;k++){
p=p+num[k];}
q=p/m;
double s=(num[0]-q)*(num[0]-q);
double w;
for(k=1;k<m;k++){
s=s+(num[k]-q)*(num[k]-q);}
w=sqrt(s/m);
printf("%.5lf\n",w);}
return 0;
}
|
38
|
18579
|
void main()
{
int n,num[100],i,j;
double data[100][30],fang[100],aver[100];
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&num[i]);
for(j=0;j<num[i];j++)
scanf("%lf",&data[i][j]);
}
for(i=0;i<n;i++)
{
aver[i]=0;fang[i]=0;
for(j=0;j<num[i];j++)
aver[i]=(double)(aver[i]+(double)(data[i][j]/num[i]));
for(j=0;j<num[i];j++)
fang[i]=fang[i]+(double)((data[i][j]-aver[i])*(data[i][j]-aver[i]));
fang[i]=(double)(fang[i]/num[i]);
fang[i]=sqrt(fang[i]);
printf("%.5lf\n",fang[i]);
}
}
|
38
|
18580
|
int main()
{
int n,x[100],i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&x[i]);
int j;
double y[1000],a=0.0,ave=0.0,s;
for(j=0;j<x[i];j++)
{
scanf("%lf",&y[j]);
a+=y[j];
}
a=a/x[i];
for(j=0;j<x[i];j++)
{
ave+=(y[j]-a)*(y[j]-a);
}
s=sqrt(ave/x[i]);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18581
|
int main(int argc, char* argv[])
{
int n,i,j,m;
double s,x,y;
double z[100];
double a[100][100];
scanf("%d",&n);
for(i=0;i<n;i++){
s=x=y=z[i]=0.0;
scanf("%d",&m);
for(j=0;j<m;j++){
scanf("%lf",&a[i][j]);
s+=a[i][j];
}
x=s/m;
for(j=0;j<m;j++){
y+=(a[i][j]-x)*(a[i][j]-x);
}
z[i]=sqrt(y/m);
}
for(i=0;i<n;i++)
printf("%.5lf\n",z[i]);
return 0;
}
|
38
|
18582
|
int main()
{ double num[100][100];
int m,n,i,j;
double sum,average,sums,u,t,s,averages;
scanf("%d",&m);
for(i=0;i<m;i++){
scanf("%d",&n);
sums=sum=0;
for(j=0;j<n;j++){
scanf("%lf",&num[i][j]);
sum+=num[i][j];
}
average=sum/n;
for(j=0;j<n;j++){
u=num[i][j]-average;
t=u*u;
sums+=t;
}
averages=sums/n;
s=sqrt(averages);
printf("%.5f\n",s);
}
return 0;
}
|
38
|
18583
|
int main()
{
int i,j,k,n;
double data[1000];
double sum = 0,S = 0,ave = 0;
double *pointer = NULL;
cin >> k;
for( i = 0;i<k;i++)
{
cin >> n;
for(j = 0;j < n;j++)
{ cin >> data[j];
sum += data[j];
}
ave = sum / n;
pointer = data;
for(j = 0;j<n;j++)
{
S += ( *pointer-ave) * (*pointer-ave);
pointer++;
}
cout << setprecision(5) << fixed << sqrt(S/n) << endl;
memset(data,0,sizeof(data));
pointer = NULL;
sum = 0;ave = 0;S = 0;
}
return 0;
}
|
38
|
18584
|
int main(){
int k,i,j;
int n[100];
double x[100][1000],y[100]={0.0},z[100],sum[100]={0.0},average[100];
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n[i]);
for(j=0;j<n[i];j++){
scanf("%lf",&x[i][j]);
}
}
for(i=0;i<k;i++){
for(j=0;j<n[i];j++){
sum[i]+=x[i][j];
}
average[i]=sum[i]/n[i];
}
for(i=0;i<k;i++){
for(j=0;j<n[i];j++){
y[i]+=((x[i][j]-average[i])*(x[i][j]-average[i]));
}
z[i]=sqrt(y[i]/n[i]);
}
for(i=0;i<k;i++){
printf("%.5lf\n",z[i]);
}
return 0;
}
|
38
|
18585
|
int main()
{
int k, i, j;
int n[100];
double x[100], m[100], s[100];
double sum[100], a[100];
scanf("%d", &k);
for(i = 0; i < k; i++){
sum[i] = 0;
scanf("%d", &n[i]);
for(j = 0; j < n[i]; j++){
scanf("%lf", &x[j]);
sum[i] = sum[i] + x[j];
}
a[i] = sum[i] / n[i];
m[i] = 0;
for(j = 0; j < n[i]; j++){
m[i] += (x[j] - a[i]) * (x[j] - a[i]);
}
s[i] = sqrt(m[i] / n[i]);
}
for(i = 0; i < k; i++){
printf("%.5lf\n", s[i]);
}
return 0;
}
|
38
|
18586
|
int main(int argc, char* argv[])
{
int k,n,i;
double *p,a[1000],sum=0,D=0,S,x;
p=a;
scanf("%d",&k);
for(i=0;i<k;i++)
{sum=0;D=0;
scanf("%d",&n);
for(p=a;p<a+n;p++)
{
scanf("%lf",p);
sum=sum+*p;
}
x=sum/n;
for(p=a;p<a+n;p++)
{D=D+pow((*p-x),2);}
S=sqrt(D/n);
printf("%.5f\n",S);
}
return 0;
}
|
38
|
18587
|
int main()
{
int k,n;
double shuzu[1001];
double *p;
int i;
double sum1=0;
double sum2=0;
double average;
double S;
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
for(p=shuzu;p<shuzu+n;p++){
scanf("%lf",p);
sum1+=*p;
}
average=sum1/n;
for(p=shuzu;p<shuzu+n;p++){
sum2+=(*p-average)*(*p-average);
}
sum2/=n;
S=sqrt(sum2);
printf("%.5lf\n",S);
sum1=0;
sum2=0;
}
return 0;
}
|
38
|
18588
|
int main(int argc, char* argv[])
{
int a,b,i,j;
double x[1000];
double c,d,e,f,s;
scanf ("%d",&a);
for (i=0;i<a;i++)
{
c=0.0;d=0.0;e=0.0;f=0.0;s=0.0;
scanf("%d",&b);
for (j=0;j<b;j++)
{
scanf("%lf",&x[j]);
c=c+x[j];
}
d=c/b;
for (j=0;j<b;j++)
{
e=e+(x[j]-d)*(x[j]-d);
}
f=e/b;
s=sqrt (f);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18589
|
int main(int argc, char* argv[])
{
int k;
scanf("%d",&k);
int i;
for(i=0;i<k;i++)
{
double x[1000];
int n;
scanf("%d",&n);
int j;
double sum=0;
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
sum+=x[j];
}
double a=sum/n;
double sum2=0;
for(j=0;j<n;j++)
{
sum2+=(x[j]-a)*(x[j]-a);
}
double S=sqrt(sum2/n);
printf("%.5lf\n", S);
}
return 0;
}
|
38
|
18590
|
void main()
{
int k,n,i;
double *x;
scanf("%d",&k);
while(k--){
double sum=0,sum2=0,a,s;
scanf("%d",&n);
x=(double*)malloc(1000*sizeof(double));
for(i=0;i<n;i++) {
scanf("%lf",x+i);
sum+=*(x+i);
}
a=sum/n;
for(i=0;i<n;i++) sum2+=((*(x+i)-a)*(*(x+i)-a));
s=sqrt(sum2/n);
printf("%.5f\n",s);
}
}
|
38
|
18591
|
float a[100][1000];
int main()
{
int k,i,j,n[100];
double p[100]={0},s[100]={0};
double sum[100]={0};
cin >> k;
for (i=0;i<k;i++)
{
cin >> n[i];
for (j=0;j<n[i];j++)
cin >> a[i][j];
}
for (i=0;i<k;i++)
for (j=0;j<n[i];j++)
p[i] += a[i][j];
for (i=0;i<k;i++)
p[i]=p[i]/n[i];
for (i=0;i<k;i++)
for (j=0;j<n[i];j++)
sum[i] += pow(a[i][j]-p[i],2);
for (i=0;i<k;i++)
{
s[i]=sqrt(sum[i]/n[i]);
printf("%.5f\n", s[i]);
}
return 0;
}
|
38
|
18592
|
void main()
{
double aver(double x[], int n);
int k, n, i;
double x[1001], a, y[1001], s;
scanf("%d", &k);
while(k)
{
scanf("%d", &n);
for(i=0; i<n; i++)
scanf("%lf", &x[i]);
a=aver(x, n);
for(i=0; i<n; i++)
y[i]=(x[i]-a)*(x[i]-a);
printf("%.5lf\n", sqrt(aver(y, n)));
k--;
}
}
double aver(double x[], int n)
{
double sum=0.0;
int i;
for(i=0; i<n; i++)
sum+=x[i];
return sum/n;
}
|
38
|
18593
|
double aver(double *p,int n)
{
int i;
double a;
double sum=0;
for(i=0;i<n;i++)
sum=*(p+i)+sum;
a=sum/n;
return a;
}
double s(double *p,int n)
{
int i;
double sum=0;
double av=aver(p,n);
for(i=0;i<n;i++)
sum=(*(p+i)-av)*(*(p+i)-av)+sum;
double a;
a=sum/n;
return(sqrt(a));
}
void main()
{
double *p[100];
int m,n,i,j;
scanf("%d",&m);
for(i=0;i<m;i++)
*(p+i)=(double *)malloc(100*sizeof(double));
for(i=0;i<m;i++)
{
scanf("%d",&n);
for(j=0;j<n;j++)
scanf("%lf",*(p+i)+j);
printf("%.5lf\n",s(p[i],n));
}
}
|
38
|
18594
|
double average(double *data[100],int n)
{
double sum=0,a;
int i;
for(i=0;i<n;i++)
{
sum+=*data[i];
}
//printf("sum=%lf",sum);
a=sum/n;
return a;
}
double S(double *data[100],int n,double a)
{
double sum=0,root;
int i;
for(i=0;i<n;i++)
sum+=(*data[i]-a)*(*data[i]-a);
//printf("sum=%lf",sum);
root=sqrt(sum/n);
return root;
}
void main()
{
int k,i;
int n,j;
double *temp,a,s,*data[100];
scanf("%d",&k);
for(j=0;j<k;j++)
{
scanf("%d",&n);
for(i=0;i<n;i++)
{
temp=(double *)malloc(sizeof(double));
scanf("%lf",temp);data[i]=temp;
}
a=average(data,n);
s=S(data,n,a);
printf("%.5f\n",s);
}
}
|
38
|
18595
|
int main()
{
int n;
scanf("%d",&n);
double x[1000],a[100],h;
double p[100]={0};
int m[100];
for(int i=0;i<n;i++)
{
scanf("%d",&m[i]);
double h=0;
for(int j=0;j<m[i];j++)
{
scanf("%lf",&x[j]);
h += x[j];
}
a[i] = h/m[i];
p[i]=0;
for(int c=0;c<m[i];c++)
{
p[i] += (x[c]-a[i])*(x[c]-a[i]);
}
}
double S[100];
for(int v=0;v<n;v++)
{
S[v] = sqrt(p[v]/m[v]);
printf("%.5f\n", S[v]);
}
return 0;
}
|
38
|
18596
|
int main()
{
int k,i,j,n;
double a[100],x,s,*p;
scanf("%d",&k);
for(i=0;i<k;i++)
{
p=a;
s=0;
x=0;
scanf("%d",&n);
for(j=0;j<n;j++,p++)
{
scanf("%lf",p);
x=x+*p;
}
p=a;
x=x/(double)n;
for(j=0;j<n;j++,p++)
{
s=s+(*p-x)*(*p-x);
}
s=s/(double)n;
s=sqrt(s);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18597
|
int main()
{
int q[100];
double a[200][1000],b[200]={0},sum[200]={0},s[200]={0};
int k,i,j;
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&q[i]);
for(j=0;j<q[i];j++)
{
scanf("%lf",&a[i][j]);
s[i]+=a[i][j];
}
}
for(i=0;i<k;i++)
{
for(j=0;j<q[i];j++)
{
b[i]+=(a[i][j]-s[i]/q[i])*(a[i][j]-s[i]/q[i]);
}
}
for(i=0;i<k;i++)
{
sum[i]=sqrt(b[i]/q[i]);
printf("%.5lf\n",sum[i]);
}
return 0;
}
|
38
|
18598
|
int main()
{
int n, i, j;
double s, b, B[100];
double sum=0;
double A[100][100];
int m;
double a=0;
scanf("%d", &n);
for(i=0;i<n;i++)
{
scanf("%d", &m);
for(j=0;j<m;j++)
{
scanf("%lf", &A[i][j]);
}
b=0;
sum=0;
for(j=0;j<m;j++)
{
b+=A[i][j];
}
a=b/m;
for(j=0;j<m;j++)
{
sum+=pow((A[i][j]-a),2);
}
B[i]=sqrt(sum/m);
}
for(i=0;i<n;i++)
{
s=B[i];
printf("%.5lf\n", s);
}
return 0;
}
|
38
|
18599
|
int re(int w,int r,int time);
int main(int argc, char* argv[])
{
int n,n1,i,j;
double sz[100],x=0,s=0;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d",&n1);
for(j=0;j<n1;j++){
scanf("%lf",&sz[j]);
}
for(j=0;j<n1;j++){
x+=sz[j];
}
x/=n1;
for(j=0;j<n1;j++){
s+=(sz[j]-x)*(sz[j]-x);
}
s/=n1;
s=pow(s,0.5);
printf("%.5f\n",s);
x=0;
s=0;
}
return 0;
}
|
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