label
stringlengths 1
2
| index
stringlengths 1
5
| code
stringlengths 87
8.24k
|
|---|---|---|
38
|
18600
|
void main()
{
int n,*pm,i,j,k;
double *pa[100],*psum,*pave,s,t;
scanf("%d",&n);
pm=(int*)malloc(sizeof(int)*n);
psum=(double*)malloc(sizeof(double)*n);
pave=(double*)malloc(sizeof(double)*n);
for(k=0;k<n;k++)
{
*(psum+k)=0;
scanf("%d",pm+k);
pa[k]=(double*)malloc(sizeof(double)*(*(pm+k)));
for(i=0;i<*(pm+k);i++)
{
scanf("%lf",pa[k]+i);
*(psum+k)=*(psum+k)+*(pa[k]+i);
}
*(pave+k)=*(psum+k)/(*(pm+k));
}
// printf("%lf",ave);
for(k=0;k<n;k++)
{
*(psum+k)=0;
for(i=0;i<*(pm+k);i++)
{
*(psum+k)=*(psum+k)+(*(pa[k]+i)-*(pave+k))*(*(pa[k]+i)-*(pave+k));
}
s=sqrt(*(psum+k)/(*(pm+k)));
printf("%.5lf\n",s);
}
}
|
38
|
18601
|
int main()
{
int k,n;
int i,j;
double a[1001],evg,sum= 0;
cin >> k;
while(k--){
sum = 0;
cin >>n;
for(i = 0;i < n;i++){
cin >> a[i];
sum+=a[i];
}
evg= sum/n;
sum = 0;
for(i = 0;i < n;i++)
sum +=(a[i] - evg)*(a[i] - evg);
sum/=n;
sum = sqrt(sum);
cout <<fixed<<setprecision(5)<<sum<<endl;
}
return 0;
}
|
38
|
18602
|
int main(){
int k,n[100];
double sz[100][100],sum1[100],sum2[100],a[100],s[100];
int i=0,j=0,h=0;
scanf("%d",&k);
for(i=0;i<k;i++){
sum1[i]=0;
sum2[i]=0;
a[i]=0;
s[i]=0;
}
for(i=0;i<k;i++){
scanf("%d",&n[i]);
for(j=0;j<n[i];j++){
scanf("%lf",&sz[h][j]);
}
h++;
}
for(i=0;i<k;i++){
for(j=0;j<n[i];j++){
sum1[i]+=sz[i][j];
}
a[i]=(double)sum1[i]/n[i];
}
for(i=0;i<k;i++){
for(j=0;j<n[i];j++){
sum2[i]+=(double)pow((sz[i][j]-a[i]),2)/n[i];
}
s[i]=sqrt(sum2[i]);
}
for(i=0;i<k;i++){
printf("%.5f\n",s[i]);
}
return 0;
}
|
38
|
18603
|
// shang.cpp : Defines the entry point for the console application.
//
int main(int argc, char* argv[])
{
int num;
scanf("%d",&num);
int i,j;
for(i=0;i<num;i++){
int n;
scanf("%d",&n);
double x[101],sum=0,ave,final=0,result;
for(j=0;j<n;j++){
scanf("%lf",&*(x+j));
sum=sum+*(x+j);
}
ave=sum/n;
for(j=0;j<n;j++){
final=final+(*(x+j)-ave)*(*(x+j)-ave);
}
result=sqrt(final/n);
printf("%.5f\n",result);
}
return 0;
}
|
38
|
18604
|
int main(){
int n,i,k,j;
double x[100],s[100]={0},a,S[100];
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n);
a=0;
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
a+=x[j];
}
for(j=0;j<n;j++)
{
s[i]+=pow((x[j]-a/n),2);
}
S[i]=sqrt(s[i]/n);
}
for(i=0;i<k;i++)
{
printf("%.5lf\n",S[i]);
}
return 0;
}
|
38
|
18605
|
int main()
{
int a[100]={0},k,i,j;
double b[100]={0},cnt,average,s;
cin>>k;
for(i=0;i<k;i++)
{
average=0;
cnt=0;
s=0;
cin>>a[i];
for(j=0;j<a[i];j++)
{
cin>>b[j];
average+=b[j];
}
average=average/a[i];
for(j=0;j<a[i];j++)
cnt+=(b[j]-average)*(b[j]-average);
cnt=cnt/a[i];
s=sqrt(cnt);
cout<<fixed<<setprecision(5)<<s<<endl;
}
return 0;
}
|
38
|
18606
|
int main(){
int i,j,k,n;
double a[100][100];
double c=0,b=0;
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
c=0;b=0;
for(j=0;j<n;j++){
scanf("%lf ",&a[i][j]);
c+=a[i][j];}
for(j=0;j<n;j++)
b+=(a[i][j]-c/n)*(a[i][j]-c/n);
printf("%.5lf\n",sqrt(b/n));
}}
|
38
|
18607
|
int main()
{
int k;
scanf("%d", &k);
int i;
int n[1000],j,m;
double x[1000];
double sum=0;
double aver,total=0;
double out;
for(i=1;i<=k;i++)
{
scanf("%d", &*(n+i));
for(j=1;j<=*(n+i);j++)
{
scanf("%lf", &*(x+j));
sum=sum+*(x+j);
}
aver=(double)sum/ *(n+i);
for(m=1;m<=*(n+i);m++)
{
total=total+(aver-*(x+m))*(aver-*(x+m));
}
out=sqrt(total/ *(n+i));
printf("%.5lf\n", out);
sum=0;
total=0;
}
return 0;
}
|
38
|
18608
|
int main()
{
int k,n[100],i,j;
double x[100][100],sum,ave,s;
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++)
{
sum=0;
s=0;
for(j=0;j<n[i];j++)
sum+=x[i][j];
ave=sum/n[i];
for(j=0;j<n[i];j++)
s+=(x[i][j]-ave)*(x[i][j]-ave);
s=sqrt(s/n[i]);
printf("%.5lf\n",s);
}
getchar();
getchar();
return 0;
}
|
38
|
18609
|
main()
{
int n,m,i,j;
double a[1100]={0},sum=0,ave,s=0,x;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%d",&m);
for(j=1;j<=m;j++)
{
scanf("%lf",&a[j]);
sum=sum+a[j];
}
ave=sum/m;
for(j=1;j<=m;j++)
{
s=s+(a[j]-ave)*(a[j]-ave);
}
s=s/m;
x=sqrt(s);
printf("%.5f\n",x);
for(j=1;j<=m;j++) a[j]=0;
sum=0;
s=0;
}
}
|
38
|
18610
|
int main(int argc, char* argv[])
{
int k,i;
scanf("%d",&k);
for(i=0;i<k;i++){
int n,j,l;
double x[100],a=0.0,b,c,d=0.0,e,s;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&x[j]);
a=a+x[j];
}
b=a/n;
for(l=0;l<n;l++){
c=(x[l]-b)*(x[l]-b);
d=d+c;
}
e=d/n;
s=sqrt(e);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18611
|
int main()
{
double num[10000],sum,s;
int n,m;
int i,j,flag=0;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%d",&m);
for(j=1,sum=0;j<=m;j++)
{
scanf("%lf",num+j);
sum+=*(num+j);
}
sum/=m;
for(j=1,s=0;j<=m;j++)
{
s+=d(*(num+j)-sum);
}
s/=m;
s=sqrt(s);
if(flag==1)
printf("\n");
flag=1;
printf("\n%.5lf",s);
}
// getch();
return 0;
}
|
38
|
18612
|
int main()
{
int k,n,i,a;
double sz[1000][100],pj,s=0;
scanf("%d",&k);
for(a=0;a<k;a++){
s=0;
pj=0;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%lf",&sz[a][i]);
pj+=sz[a][i];
}
pj=pj/n;
for(i=0;i<n;i++){
s+=(sz[a][i]-pj)*(sz[a][i]-pj);
}
s=sqrt(s/n);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18613
|
int main()
{
int x,i,k;
scanf("%d",&k);
for (x=1;x<=k;x++)
{
int n;
scanf("%d",&n);
double *p,*head;
p=(double*)(calloc(n,8));
head=p;
for (i=0;i<n;i++)
{
scanf("%lf",p);
p++;
}
p=head;
double sum_a=0.0,sum_s=0.0,a,s;
for (i=0;i<n;i++)
{
sum_a+=*p;
p++;
}
a=sum_a/(n*1.0);
p=head;
for (i=0;i<n;i++)
{
sum_s+=(*p-a)*(*p-a);
p++;
}
s=sqrt(sum_s/(n*1.0));
printf("%.5f\n",s);
}
return 0;
}
|
38
|
18614
|
int main()
{
int n;
int i,j,k,l;
double a[2000],*p,averge,sum=0;
cin>>n;
for(i=1;i<=n;i++)
{
cin>>k;
for(j=0;j<k;j++)
cin>>a[j];
p=a;
for(j=0;j<k;j++)
{
sum=sum+*p;
p++;
}
averge=sum/k;
p=a;
sum=0;
for(j=0;j<k;j++)
{
sum=sum+(*p-averge)*(*p-averge);
p++;
}
cout<<fixed<<setprecision(5)<<sqrt(sum/k)<<endl;
sum=0;
}
}
|
38
|
18615
|
int main()
{
int k,i,j,n[1000];
double x[1000][1000],s[1000],a[1000];
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]);
a[i]=a[i]+x[i][j];
}
}
for(i=0;i<k;i++)
{
a[i]=a[i]/n[i];
for(j=0;j<n[i];j++)
{
s[i]=s[i]+(x[i][j]-a[i])*(x[i][j]-a[i]);
}
s[i]=sqrt(s[i]/n[i]);
printf("%.5lf\n",s[i]);
}
return 0;
}
|
38
|
18616
|
int main()
{
int k,n[100],i,p;
double x[100],sum[100],average[100],mm[100],s[100];
scanf("%d",&k);
for(i=0;i<k;i++)
{
sum[i]=0;
scanf("%d",&n[i]);
for(p=0;p<n[i];p++)
{
scanf("%lf",&x[p]);
sum[i]+=x[p];
}
average[i]=sum[i]/n[i];
mm[i]=0;
for(p=0;p<n[i];p++)
{
mm[i]+=pow(average[i]-x[p],2);
s[i]=pow(mm[i]/n[i],0.5);
}
}
for(i=0;i<k;i++)
{
printf("%.5f\n",s[i]);
}
return 0;
}
|
38
|
18617
|
void main()
{
int n,m;
int i,j;
double a,s;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&m);
double *p;
p=(double *)calloc(m,sizeof(double));
for(j=0;j<m;j++)
scanf("%lf",p+j);
/*?????%d?????%lf*/
double aver(double *p1,int l);
a=aver(p,m);
double ss(double *p2,double x,int k);
s=ss(p,a,m);
printf("%.5lf\n",s);
/*????%.5f??%.5lf*/
}
}
double aver(double *p1,int l)
{
double s1=0;
int i;
for(i=0;i<l;i++)
s1+=*(p1+i);
return(s1/l);
}
double ss(double *p2,double x,int k)
{
double s2=0;
int i;
for(i=0;i<k;i++)
s2+=pow((*(p2+i)-x),2);
return(sqrt(s2/k));
}
|
38
|
18618
|
int main()
{
int n,c,i;
double so=0.0,sum=0.0,s,*p;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d",&c);
double *cj=(double*)malloc(sizeof(double)*c);
for(p=cj;p<cj+c;p++){
scanf("%lf",p);
so+=*p;
}
so=so/c;
for(p=cj;p<cj+c;p++){
sum+=(*p-so)*(*p-so);
}
sum=sum/c;
s=pow(sum,0.5);
printf("%.5f\n",s);
so=0;
sum=0;
free(cj);
}
return 0;
}
|
38
|
18619
|
int main()
{
int num;
cin >> num;
for(int i = 0; i < num; i++)
{
int n;
cin >> n;
double a[1001], sum = 0, ave;
double *p;
for(p = a; p < a+n; p++)
{
cin >> *p;
sum = sum + *p;
}
ave = sum / n;
double summ = 0;
for(p = a; p < a+n; p++)
summ = summ + ( *p - ave ) * ( *p - ave );
summ = summ / n;
summ = sqrt( summ );
printf( "%.5lf\n", summ );
}
return 0;
}
|
38
|
18620
|
int main(int argc, char* argv[])
{
int n,m,i,j;
double x[100],s,a,sum;
scanf("%d",&n);
for(j=0;j<n;j++)
{
s=0;
sum=0;
scanf("%d",&m);
for(i=0;i<m;i++)
scanf("%lf",&x[i]);
for(i=0;i<m;i++)
sum+=x[i];
a=sum/m;
for(i=0;i<m;i++)
{
s+=(x[i]-a)*(x[i]-a);
}
s=s/m;
s=sqrt(s);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18621
|
int main()
{
double sum;
double sum2;
double input;
int n, k;
int in;
scanf("%d", &k);
for(; k>0; k--){
scanf("%d", &n);
sum = sum2 = 0;
for(in=0; in<n; in++){
scanf("%lf", &input);
sum += input;
sum2 += input * input;
}
printf("%.5f\n", sqrt((sum2-sum*sum/n)/n));
}
return 0;
}
|
38
|
18622
|
int main(){
int k,i,h,n;
scanf("%d",&k);
double *x=(double *)malloc(sizeof
(double)*k);
double s,a,d,f;
for(i=0;i<k;i++){
d=0.0;
scanf("%d",&n);
double *x=(double *)malloc(sizeof(double)*n);
for(h=0;h<n;h++){
scanf("%lf",&x[h]);
d+=x[h];
}
a=d/n;
f=0.0;
for(h=0;h<n;h++){
f+=(x[h]-a)*(x[h]-a);
}
x[i]=sqrt(f/n);
printf("%.5f\n",x[i]);
}
return 0;
}
|
38
|
18623
|
int main(int argc, char* argv[])
{
int k,n;
int i,j;
double sum,a,s,S;
double sz[100];
double* p=sz;
scanf("%d",&k);
for(i=0;i<k;i++){
sum=0;
s=0;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",p+j);
sum=sum+*(p+j);
}
a=sum/n;
for(j=0;j<n;j++){
s=s+(*(p+j)-a)*(*(p+j)-a);
}
S=sqrt(s/n);
printf("%.5lf\n",S);
}
return 0;
}
|
38
|
18624
|
int main()
{
int k,n,i;
cin>>k;
double S,mean,sum=0;
while(k--)
{
double num[101];
double *p=num;
cin>>n;
for(i=0;i<n;i++)
{
cin>>num[i];
sum+=num[i];
}
mean=sum/n;
sum=0;
while(i>0)
sum+=pow(*(p+(--i))-mean,2);
mean=sum/n;
S=sqrt(mean);
sum=0;
cout<<fixed<<setprecision(5)<<S<<endl;
}
return 0;
}
|
38
|
18625
|
double s(double *p,double ave,int k,double x[])
{
double t=0;
for(;;)
{
t=t+(pow((*p)-ave,2));
p++;
if(p==(x+k))
break;
}
return t;
}
int main()
{
int i,j,n,k;
double x[1001],ave,sum,t,r;
double *p;
p=x;
scanf("%d",&n);
for(i=0;i<n;i++)
{
sum=0;
scanf("%d",&k);
for(j=0;j<k;j++)
scanf("%lf",&x[j]);
for(;;)
{
sum=sum+(*(p++));
if(p==(x+k))
break;
}
ave=sum/k;
p=x;
t=s(p,ave,k,x);
r=sqrt(t/k);
printf("%.5lf\n",r);
}
return 0;
}
|
38
|
18626
|
int main()
{
int k,n,i,j;
double s=0,x[100],a,S[100],d=0;
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
s+=x[j];
}
a=s/(double)n;
for(j=0;j<n;j++)
{
d+=(x[j]-a)*(x[j]-a);
}
S[i]=sqrt(d/(double)n);
s=0;
d=0;
}
for(i=0;i<k;i++)
{
printf("%.5f\n", S[i]);
}
return 0;
}
|
38
|
18627
|
int main(int argc, char* argv[])
{
int i,k;int n,j;double x,sumx=0,a,sum=0,b,d,g[100];
scanf("%d",&k);
for (i=0;i<k;i++)
{
scanf("%d",&n);
for (j=0;j<n;j++)
{
scanf("%lf",&x);g[j]=x;
sumx+=x;
a=sumx/n;}for(j=0;j<n;j++){sum+=(g[j]-a)*(g[j]-a);}
b=sum/n;
d=sqrt(b);
printf("%.5lf\n",d);sumx=0;sum=0;b=0;d=0;
}
return 0;
}
|
38
|
18628
|
int main(int argc, char* argv[])
{
int i,n;
scanf("%d",&n);
for(i=0;i<n;i++)
{
int j,m;
double x[1000];
double s=0.0,s1=0.0,a;
scanf("%d",&m);
for(j=0;j<m;j++)
{
scanf("%lf",&x[j]);
}
for(j=0;j<m;j++)
{
s+=x[j];
}
a=(double)s/m;
for(j=0;j<m;j++)
{
s1=s1+(x[j]-a)*(x[j]-a);
}
printf("%.5lf\n",sqrt(s1/m));
}
return 0;
}
|
38
|
18629
|
int main()
{
int k,n,i;
double a[100],s=0.0,b=0.0;
cin >> k;
while(k!=0)
{
k--;
s=0.0,b=0.0;
cin >> n;
for(i=0;i<n;i++)
{
scanf("%lf",a+i);
b+=*(a+i);
}
b=b/n;
for(i=0;i<n;i++)
{
s+=(*(a+i)-b)*(*(a+i)-b);
}
s=sqrt(s/n);
printf("%.5f\n",s);
}
return 0;
}
|
38
|
18630
|
int main()
{
int k,i,j;
int n[100];
double a[100][100],all[100],aver[100],sqa[100],s[100];
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n[i]);
for(j=0;j<n[i];j++){
scanf("%lf",&a[i][j]);
}
}
for(i=0;i<k;i++){
all[i]=0;
for(j=0;j<n[i];j++){
all[i]=all[i]+a[i][j];
}
aver[i]=all[i]/(double)(n[i]);
}
for(i=0;i<k;i++){
sqa[i]=0;
for(j=0;j<n[i];j++){
sqa[i]=sqa[i]+(a[i][j]-aver[i])*(a[i][j]-aver[i]);
}
s[i]=sqrt(sqa[i]/(double)(n[i]));
printf("%.5lf\n",s[i]);
}
return 0;
}
|
38
|
18631
|
//???????????
int main()
{
int k,n,i,j;
double x[1000],*p,average,s;
p=&x[0];
cin>>k;
for (i=0;i<k;i++)
{
s=0.0;
average=0.0;
cin>>n;
for (j=0;j<n;j++)
{
cin>>*(p+j);
average+=(*(p+j))/n;//???
}
for (j=0;j<n;j++)
s+=((*(p+j))-average)*((*(p+j))-average)/n;
s=sqrt(s);//???
printf("%.5f\n", s);
}
return 0;
}
|
38
|
18632
|
int main()
{
int n,i,j,a[100];
double sz[100][100],sum[100],m[100],p[100],s[100];
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&a[i]);
sum[i]=0;
for(j=0;j<a[i];j++)
{
scanf("%lf",&sz[i][j]);
sum[i]+=sz[i][j]/a[i];
}
p[i]=0;
for(j=0;j<a[i];j++)
p[i]+=(sz[i][j]-sum[i])*(sz[i][j]-sum[i]);
s[i]=sqrt(p[i]/a[i]);
}
for(i=0;i<n;i++)
{
printf("%.5f\n",s[i]);
}
return 0;
}
|
38
|
18633
|
int main(){
int n,i,j,k,y,m,d,c;
double sz[100],sum=0.0,S=0.0,x;
scanf ("%d",&n);
for (i=0;i<n;i++){
scanf ("%d",&c);
for (j=0;j<c;j++){
scanf ("%lf",&sz[j]);
sum+=sz[j];
}
d=c;
c=c*1.0;
x=sum/c;
for (k=0;k<d;k++){
S+=(sz[k]-x)*(sz[k]-x);
}
S=sqrt(S/c);
printf("%.5lf\n",S);
sum=0.0,S=0.0;
}
return 0;
}
|
38
|
18634
|
void main()
{int k,n,i,j;
double a[1000]={0},av=0,s=0,out=0;
double *p=a;
scanf("%d",&k);
for(j=0;j<k;j++)
{
scanf("%d",&n);
for(i=0;i<n;i++)
{ scanf("%lf",p+i);
av+=*(p+i);}
av=av/n;
for(i=0;i<n;i++)
s+=(a[i]-av)*(a[i]-av);
s=s/n;
out=sqrt(s);
printf("%.5lf\n",out);
s=0;out=0;av=0;
}
}
|
38
|
18635
|
int main(int argc, char* argv[])
{
int n=0,k=0,i=0,j=0;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&k);
double a=0,s=0;
double sz[1000];
for(j=0;j<k;j++)
{
scanf("%lf",&sz[j]);
a+=sz[j];
}
a=a/k;
for(j=0;j<k;j++)
{
s+=(sz[j]-a)*(sz[j]-a);
}
s=s/k;
s=sqrt(s);
printf("%.5f\n",s);
}
return 0;
}
|
38
|
18636
|
double s(double *p,int n)
{
int i;
double x=0,a=0,*q=p;
for(i=0;i<n;i++,q++)
a+=*q;
a/=n;
q=p;
for(i=0;i<n;i++,q++)
x+=(*q-a)*(*q-a);
return sqrt(x/n);
}
void main()
{
int k,i,n,j;
double *p[100],*q;
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n);
p[i]=(double *)malloc(n*sizeof(double));
q=p[i];
for(j=0;j<n;j++)
{
scanf("%lf",q);
q++;
}
printf("%.5f\n",s(p[i],n));
}
}
|
38
|
18637
|
int main() {
int i,j,k,n;
double * a,sum,aver;
scanf("%d",&k);
for (i=0;i<k;i++) {
scanf("%d",&n);
a = (double *)malloc(n);
sum = 0.0;
for (j=0;j<n;j++) {
scanf("%lf",&a[j]);
sum+=a[j];
}
aver = sum/(double)n;
sum = 0;
for (j=0;j<n;j++) {
sum+=(a[j]-aver)*(a[j]-aver);
}
aver = sqrt((sum)/(double)n);
printf("%.5lf\n",aver);
}
return 0;
}
|
38
|
18638
|
int main()
{
int i,k,j,n;
double x[100],a[100],b[100],c[100],s[100];
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d",&k);
a[i]=0;
for(j=0;j<k;j++){
scanf("%lf",&(x[j]));
a[i]+=x[j];
}
b[i]=a[i]/k;
c[i]=0;
for(j=0;j<k;j++){
c[i]+=(x[j]-b[i])*(x[j]-b[i]);
}
s[i]=sqrt(c[i]/k);
}
for(i=0;i<n;i++){
printf("%.5lf\n",s[i]);
}
return 0;
}
|
38
|
18639
|
int main(int argc, char* argv[])
{
int n,n1,i,j;
double a[1000],sum=0.0,tmp=0.0,eve,out;
scanf ("%d",&n);
for (i=0;i<n;i++)
{
scanf ("%d",&n1);
for (j=0;j<n1;j++)
{
scanf ("%lf",&a[j]);
sum+=a[j];
}
eve=(double)sum/n1;
for (j=0;j<n1;j++)
{
tmp+=(a[j]-eve)*(a[j]-eve);
}
out=sqrt(tmp/n1);
printf ("%.5lf\n",out);
out=0.0;tmp=0.0;eve=0.0;sum=0.0;
}
return 0;
}
|
38
|
18640
|
int main (){
int i,n,k,z;
double x[100],m1[100],a=0,e=0;
scanf("%d",&k);
for (z=0;z<k;z++){
e=0;
a=0;
scanf("%d",&n);
for (i=0;i<n;i++){
scanf("%lf",&x[i]);
a+=x[i];
}
a=a/n;
for(i=0;i<n;i++){
e+=(x[i]-a)*(x[i]-a);
}
e=e/n;
m1[z]=pow(e,0.5);
}
for(z=0;z<k;z++){
printf("%.5lf\n",m1[z]);
}
return 0;
}
|
38
|
18641
|
int n,m,i,j;
double x[100],eq,s;
void main()
{
scanf("%d",&n);
for(i=0;i<n;i++)
{eq=0.0,s=0.0;
scanf("%d",&m);
for(j=0;j<m;j++)
{scanf("%lf",x+j);
eq=eq+*(x+j);
}
eq=(eq/m)*1.0;
for(j=0;j<m;j++)
{s=s+(*(x+j)-eq)*(*(x+j)-eq);}
s=sqrt((s/m)*1.0);
printf("%.5f\n", s);
}
}
|
38
|
18642
|
int main()
{ int n,i;
int num;
double *f1,s,a;
scanf("%d",&n);
while(n--)
{ a=0;s=0;
scanf("%d",&num);
f1=(double*)malloc(num*sizeof(double));
for(i=0;i<num;i++)
{ scanf("%lf",f1+i);
a+=*(f1+i);
}
a=a/(double)num;
for(i=0;i<num;i++)
s+=(*(f1+i)-a)*(*(f1+i)-a);
s=sqrt(s/(double)num);
printf("%.5f\n",s);
}
return 0;
}
|
38
|
18643
|
int days(int m1,int m2,int e[])
{
int sum=0;
for(int i=m2;i<m1;i++)
sum+=e[i];
cout<<sum<<endl;
return sum+1;
}
int main()
{
int n;
cin>>n;
while(n--)
{
int k;
cin>>k;
double a[200];
for(int i=0;i<k;i++)//????
cin>>a[i];
double sum=0,average;
for(int i=0;i<k;i++)//?????
sum+=a[i];
average=sum/k;
sum=0;
for(int i=0;i<k;i++)
sum+=(a[i]-average)*(a[i]-average);
sum=sum/k;//????
cout<<fixed<<setprecision(5)<<sqrt(sum)<<endl;
}
return 0;
}
|
38
|
18644
|
void f(double num[100],int n,double sum)
{
int i;
for(i=0;i<n;i++)
{
num[i]=(num[i]-sum)*(num[i]-sum);
}
}
int main()
{
int k,n,i,j;
double num[100],sum;
scanf("%d",&k);
for(i=1;i<=k;i++)
{
scanf("%d",&n);
sum=0;
for(j=0;j<n;j++)
{
scanf("%lf",&num[j]);
sum+=num[j];
}
sum=sum/n;
f(num,n,sum);
sum=0;
for(j=0;j<n;j++)
sum+=num[j];
sum=sum/n;
sum=sqrt(sum);
printf("%.5lf\n",sum);
}
return 0;
}
|
38
|
18645
|
int main()
{
int n, k, i, j;
double a[1000], ave=0, sum=0, s=0;
scanf("%d", &n);
for(i=0;i<n;i++)
{
scanf("%d", &k);
for(j=0;j<k;j++)
{
scanf("%lf", &a[j]);
}
for(j=0;j<k;j++)
{
ave += a[j];
}
ave = ave/k;
for(j=0;j<k;j++)
{
sum += (a[j] - ave) * (a[j] - ave);
}
s = sqrt(sum/k);
printf("%.5lf\n", s);
ave = 0;
sum = 0;
s = 0;
}
return 0;
}
|
38
|
18646
|
int main(int argc, char* argv[])
{
int k,i;
scanf("%d",&k);
for(i=0;i<k;i++)
{
double x[1000];
double a=0,b=0,a1=0,b1=0,s=0;
int n,j;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
a1+=x[j];
}
a=a1/(double)n;
for(j=0;j<n;j++)
{
double m;
m=(x[j]-a)*(x[j]-a);
b1+=m;
}
b=b1/(double)n;
s=sqrt(b);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18647
|
int main()
{
int k;
cin >> k;
for(; k >= 1; k--)
{
int n;
double sum = 0;
double data[1000 + 10];
double *p = data;
cin >> n;
for(int i = 0; i < n; i++)
{
cin >> data[i];
sum += data[i];
}
double aver = sum / n;
double dsum = 0;
for(p = data; p < data + n; p++)
{
dsum += (*p - aver) * (*p - aver);
}
dsum /= n;
double s = sqrt(dsum);
cout << fixed << setprecision(5);
cout << s << endl;
}
}
|
38
|
18648
|
void main()
{
int k,n,i,j;
double *x=0,a,s;
scanf("%d",&k);
for (i=1;i<=k;i++)
{
scanf("%d",&n);a=0;s=0;
x=(double*)calloc(100,sizeof(double));
for (j=1;j<=n;j++)
{
scanf("%lf",x+j-1);
a=a+*(x+j-1);
}
a=a/n;
for (j=1;j<=n;j++)
s=s+(*(x+j-1)-a)*(*(x+j-1)-a);
s=sqrt(s/n);
printf("%.5f\n",s);
}
}
|
38
|
18649
|
int main()
{
int n;
int i;
int j[50];
int b;
double k[100];
double sum;
double a;
scanf("%d", &n);
for(i=0; i<n; i++)
{
scanf("%d", &j[i]);
for(b=0; b<j[i]; b++)
{
scanf("%lf", &k[b]);
}
sum = 0;
for(b=0; b<j[i]; b++)
{
sum += k[b];
}
a = sum / (j[i]);
sum = 0;
for(b=0; b<j[i]; b++)
{
sum += (k[b] - a) * (k[b] - a);
}
sum = sqrt(sum / j[i]);
printf("%.5lf\n", sum);
}
return 0;
}
|
38
|
18650
|
int main(int argc, char* argv[])
{
int k, n, i, j;
double x[5000], sum, aver, a , b;
scanf("%d\n", &k);
for(i = 0; i < k; i++)
{
scanf("%d\n", &n);
sum = 0;
for(j = 0; j < n; j++)
{
scanf("%lf", &x[j]);
sum += x[j];
}
aver = sum/n;
a = 0;
for(j = 0; j < n; j++)
{
a += pow((x[j] - aver), 2);
}
b = sqrt(a/n);
printf("%.5lf\n", b);
}
return 0;
}
|
38
|
18651
|
int main() {
int i,j,k,n;
double a[1000],sum,aver;
scanf("%d",&k);
for (i=0;i<k;i++) {
scanf("%d",&n);
sum = 0.0;
for (j=0;j<n;j++) {
scanf("%lf",&a[j]);
sum+=a[j];
}
aver = sum/(double)n;
sum = 0;
for (j=0;j<n;j++) {
sum+=(a[j]-aver)*(a[j]-aver);
}
aver = sqrt((sum)/(double)n);
printf("%.5lf\n",aver);
}
return 0;
}
|
38
|
18652
|
void main()
{
int k,i,j,n;
double *p,total,ave,total2,res;
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n);
total=0;ave=0;total2=0;res=0;
p=(double *)calloc(100,sizeof(double));
for(j=0;j<n;j++)
{
scanf("%lf",p+j);
total=total+(*(p+j));
}
ave=total/n;
for(j=0;j<n;j++)
total2=total2+((*(p+j))-ave)*((*(p+j))-ave);
res=sqrt(total2/n);
printf("%.5f\n",res);
}
}
|
38
|
18653
|
int main()
{
int k,n,i,j;
double x[1000],s,v;
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n);
v=0;
s=0;
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
}
for(j=0;j<n;j++)
{
v=v+x[j];
}
v=v/n;
for(j=0;j<n;j++)
{
s=s+(x[j]-v)*(x[j]-v);
}
s=sqrt((double)s/n);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18654
|
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
|
18655
|
int main()
{
int i, k, n;
double x[100], f, ave;
cin >> k;
while(k--)
{
cin >> n;
f = 0;
ave = 0;
for(i = 0; i < n; i++)
{
cin >> x[i];
ave = ave + x[i] / n;
}
for(i = 0; i < n; i++)
{
f = f + ((x[i] - ave) * (x[i] - ave)) / n;
}
f = sqrt(f);
cout << fixed << setprecision(5) << f << endl;
}
return 0;
}
|
38
|
18656
|
int main(){
int n,m;
double aa[1000],x,a,y,bb[1000];
cin>>n;
int i,j;
for(i=1;i<=n;i++){
cin>>m;
a=0;
for(j=1;j<=m;j++){
cin>>aa[j];
a=a+aa[j];
}
a=a/m;
y=0;
for(j=1;j<=m;j++){
y=y+(aa[j]-a)*(aa[j]-a);
}
y=y/m;
y=sqrt(y);
bb[i]=y;
}
for(i=1;i<=n;i++)
printf("%.5lf\n", bb[i]);
return 0;
}
|
38
|
18657
|
int main ()
{
int k,i,j,t,m;
double a,s,shu;
double *p,*sm;
scanf("%d\n",&k);
p=(double*)malloc(sizeof(double)*101);
sm=(double*)malloc(sizeof(double)*k);
for(i=0;i<k;i++)
{
scanf("%lf\n",&shu);
p[0]=shu;
a=0;
for(j=1;j<=p[0];j++)
{
scanf("%lf",&p[j]);
a+=p[j];
}
a=a/p[0];
s=0;
for(t=1;t<=p[0];t++)
{
s+=(p[t]-a)*(p[t]-a);
}
s=s/p[0];
s=sqrt(s);
sm[i]=s;
}
for(m=0;m<k;m++)
{
printf("%.5lf\n",sm[m]);
}
free(p);
free(sm);
return 0;
}
|
38
|
18658
|
int main(){
int i,j,x,n,m;
double a,b,d;
double u[100],sz[100];
scanf("%d",&n);
for(i=0;i<n;i++){
a=0,b=0,d=0;
scanf("%d",&m);
for(j=0;j<m;j++){
scanf("%lf",&sz[j]);
a=sz[j]+a;
}
double b=a/m;
for(x=0;x<m;x++){
double c=(sz[x]-b)*(sz[x]-b);
d=d+c; }
u[i]=sqrt(d/m);
}
for(i=0;i<n;i++){
printf("%.5lf\n",u[i]);
}
return 0;
}
|
38
|
18659
|
void main()
{
int i,j,n,m;
double a[1001]={0},mean,sum,result;
scanf ("%d",&n);
for (i=0;i<n;i++)
{
scanf ("%d",&m);
for (sum=0,j=0;j<m;j++)
{
scanf ("%lf",&a[j]);
sum=sum+a[j];
}
mean=sum/m;
a[m]=-1;
for (sum=0,j=0;j<m;j++)
sum=sum+(a[j]-mean)*(a[j]-mean);
result=sum/m;
result=sqrt(result);
printf ("%.5lf\n",result);
}
}
|
38
|
18660
|
int main()
{
int i , j ;
int n , k , m ;
double a , t , s ;
double x[100] = { 0 } ;
double *p = NULL ;
cin >> n ;
for ( k = 0 ; k < n ; k++ )
{
t = 0 ;
cin >> m ;
p = x ;
for ( i = 0 ; i < m ; i++ )
{
cin >> *(p+i) ;
}
a = 0 ;
for ( i = 0 ; i < m ; i++ )
{
a += *(p+i) ;
}
a = a / m ;
for ( i = 0 ; i < m ; i++ )
{
t += ( ( *(p+i) - a ) * ( *(p+i) - a ) ) ;
}
s = sqrt(t / m) ;
cout << fixed << setprecision(5) << s << endl ;
}
return 0 ;
}
|
38
|
18661
|
int main(){
int k;
scanf("%d",&k);
for(int i=0;i<k;i++){
int n;
scanf("%d",&n);
double sz[100];
double sum=0;
double a;
for(int r=0;r<n;r++){
scanf("%lf",&sz[r]);
sum+=sz[r];
}
a=sum/n;
sum=0;
for(int b=0;b<n;b++){
sz[b]=(sz[b]-a)*(sz[b]-a);
sum+=sz[b];
}
double result;
result=pow(sum/n,0.5);
printf("%.5lf\n",result);
}
return 0;
}
|
38
|
18662
|
int main()
{
int i,j,n,x;
double a[1000],*p,y,z;
cin>>n;
for(i=0;i<n;i++)
{
y=z=0;
cin>>x;
for(j=0;j<x;j++)
cin>>a[j];
p=a;
for(j=0;j<x;j++)
y+=*(p+j);
y=y/x;
for(j=0;j<x;j++)
z+=pow(*(p+j)-y,2);
z=sqrt(z/x);
printf("%.5lf\n",z);
}
return 0;
}
|
38
|
18663
|
int main()
{
int n,k,i,j;
scanf("%d",&k);
for(i=1;i<=k;i++)
{
double a=0.0,x[200],*px,s1=0.0,s=0.0;
scanf("%d",&n);
for(j=0;j<n;j++)
x[j]=0.0;
px=x;
for(j=0;j<n;j++)
{
scanf("%lf",px);
a+=*px/n;
px++;
}
px=x;
for(j=0;j<n;j++)
{
s1+=(*px-a)*(*px-a)/n;
px++;
}
s=sqrt(s1);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18664
|
int main()
{
int k;
scanf("%d",&k);
double x[100],n[100],sum1[100],sum2[100],s[100];
int i,j;
for(i=0;i<k;i++){
sum1[i]=0;
sum2[i]=0;
s[i]=0;
}
for(i=0;i<k;i++){
scanf("%lf",&(n[i]));
for(j=0;j<n[i];j++){
scanf("%lf",&(x[j]));
sum1[i]+=x[j];
}
for(j=0;j<n[i];j++){
sum2[i]+=pow(x[j]-sum1[i]/n[i],2);
s[i]=sqrt(sum2[i]/n[i]);
}
}
for(i=0;i<k;i++){
printf("%.5lf\n",s[i]);
}
return 0;
}
|
38
|
18665
|
double average(int n,double *p)
{
double i,s;
s=0;
for(i=0;i<n;i++)
{
s=s+*p;
p++;
}
s=s/n;
return s;
}
double S(int n,double *p)
{
double i,s,ave;
s=0;
ave=average(n,p);
for(i=0;i<n;i++)
{
s=s+(*p-ave)*(*p-ave);
p++;
}
s=s/n;
s=sqrt(s);
return s;
}
int main()
{
int k,i,j,n;
double x[100],*p=x;
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
}
printf("%.5f\n",S(n,p));
}
return 0;
}
|
38
|
18666
|
void main()
{
double b[100][1000];
int k,n[100]={0},i,j;
double t[100]={0},u[100]={0},a[100]={0},s[100]={0};
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n[i]);
for(j=0;j<n[i];j++)
{
scanf("%lf",&b[i][j]);
}
}
for(i=0;i<k;i++)
{
for(j=0;j<n[i];j++)
{
t[i]+=b[i][j];
}
a[i]=t[i]/n[i];
for(j=0;j<n[i];j++)
{
u[i]+=pow((b[i][j]-a[i]),2);
}
s[i]=sqrt(u[i]/n[i]);
printf("%.5lf\n",s[i]);
}
}
|
38
|
18667
|
int main()
{
int n,m;
double sz[1000][100];
double sum1[100]={0};
double sum2[100]={0};
double a;
double s[100];
scanf("%d",&n);
for(int i=0;i<n;i++){
scanf("%d",&m);
for(int j=0;j<m;j++){
scanf("%lf",&sz[j][i]);
sum1[i]=sum1[i]+sz[j][i];
}
a=sum1[i]/(double)m;
for(int l=0;l<m;l++){
sum2[i]=sum2[i]+(sz[l][i]-a)*(sz[l][i]-a);
}
s[i]=sqrt(sum2[i]/(double)m);
}
for(int y=0;y<n;y++){
printf("%.5lf\n",s[y]);
}
return 0;
}
|
38
|
18668
|
main()
{
int n,i,j,m;
double a[1000],x;
scanf("%d",&n);
for(i=0;i<n;i++)
{
double sum=0;
scanf("%d",&m);
for(j=0;j<m;j++)
{
scanf("%lf",&a[j]);
sum=sum+a[j];
}
x=sum/m;
sum=0;
for(j=0;j<m;j++)
{
sum=(a[j]-x)*(a[j]-x)+sum;
}
sum=sqrt(sum/m);
printf("%.5f\n",sum);
}
getchar();
getchar();
}
|
38
|
18669
|
int main()
{
int n,i,j,k;
double a[1000],sum=0.0,average,b[1000],s=0.0,m,u;
scanf("%d",&n);
for(i=0;i<n;i++)
{scanf("%d",&j);
for(k=0;k<j;k++)
scanf("%lf",&a[k]);
for(k=0;k<j;k++)
sum+=a[k];
average=(double)sum/j;
for(k=0;k<j;k++)
{b[k]=a[k]-average;
s+=b[k]*b[k];}
m=(double)s/j;
u=sqrt(m);
printf("%.5f\n",u);
sum=0; s=0;
}
return 0;
}
|
38
|
18670
|
int main(){
int n,i,k,m;
double sz[1000],a1=0,a,s1=0,s,s2;
scanf("%d\n",&m);
for(k=0;k<m;k++){
scanf("%d\n",&n);
a1=0;
s1=0;
s2=0;
for(i=0;i<n;i++){
scanf("%lf\n",&(sz[i]));
}
for(i=0;i<n;i++){
a1+=sz[i];
}
a=a1/n;
for(i=0;i<n;i++){
s1+=(sz[i]-a)*(sz[i]-a);
}
s2=s1/n;
s=sqrt(s2);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18671
|
int main()
{
double a[102],h,pfh,*p;
int k,n,i;
scanf("%d",&k);
while(k--)
{
scanf("%d",&n);
p=a;
for(i=0;i<n;i++)
scanf("%lf",p++);
p=a;
h=0;pfh=0;
for(i=0;i<n;i++)
{
pfh=pfh+pow(*p,2);
h=h+*p;
p++;
}
printf("%.5lf\n",sqrt(pfh/n-pow(h/n,2)));
}
}
|
38
|
18672
|
int main()
{
int k,n,i,j;
double x[101],s,p,f,d[101];
scanf("%d",&k);
for (i=1;i<=k;i++)
{
scanf("%d",&n);s=0;
for (j=1;j<=n;j++)
{
scanf("%lf",&x[j]);
s=s+x[j];
}
p=s/n;f=0;
for (j=1;j<=n;j++)
f=f+(x[j]-p)*(x[j]-p);
f=(double)f/n;
f=sqrt(f);
d[i]=f;
}
for (i=1;i<=k;i++)
printf("%.5lf\n",d[i]);
}
|
38
|
18673
|
int main(){
int n;
scanf("%d",&n);
double m,sz[101][1003]={0},aver=0,s=0,x=0,y=0;
for(int i=0;i<n;i++){
scanf("%lf",&m);
for(int j=1;j<=m;j++){
sz[i][0]=m;
scanf("%lf",&sz[i][j]);
}
}
for(int k=0;k<n;k++){
for(int h=1;h<=sz[k][0];h++){
x+=sz[k][h];
}
aver=x/sz[k][0];
x=0;
for(int b=1;b<=sz[k][0];b++){
y+=pow(sz[k][b]-aver,2);
}
s=sqrt(y/sz[k][0]);
y=0;
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18674
|
int main()
{
int m,i;
scanf("%d",&m);
for(i=0;i<m;i++)
{
int n,j;
double x[100],*p,S=0,a=0;
p=&x[0];
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf ",p+j);
}
for(j=0;j<n;j++)
{
a+=*(p+j);
}
a=a/n;
for(j=0;j<n;j++)
{
S+=(*(p+j)-a)*(*(p+j)-a);
}
S=S/n;
S=pow(S,0.5);
printf("%.5lf\n",S);
}
return 0;
}
|
38
|
18675
|
int main()
{
int k,n;
double x[100];
cin>>k;
for(int i=0;i<k;i++)
{
double sum1=0,aver,sum2=0,result;
double *p;
cin>>n;
for(p=x;p<x+n;p++)
{
cin>>*p;
sum1+=*p;
}
aver=sum1/n;
for(p=x;p<x+n;p++)
{
sum2+=(*p-aver)*(*p-aver);
}
result=sqrt(sum2/n);
cout<<fixed<<setprecision(5)<<result<<endl;
}
return 0;
}
|
38
|
18676
|
// cg.cpp : Defines the entry point for the console application.
//
int main()
{
int n,k,i,j;
scanf("%d",&k);
double sz[1000],sum=0,a,b,fj=0;
double c;
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];
}
a=sum/n*1.0;
for(j=0;j<n;j++){
b=(sz[j]-a)*(sz[j]-a);
fj+=b;
}
c=sqrt(fj/n);
printf("%.5f\n",c);
sum=0;
fj=0;
c=0;
a=0;
b=0;
}
return 0;
}
|
38
|
18677
|
int main(int argc, char* argv[])
{
int n,m;
int i,j;
double a,b,c,t,summ=0;
int count[100]={0};
double sum[100]={0.00};
double x[100][100];
double result[100];
int number[100];
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&m);
number[i]=m;
for(j=0;j<m;j++)
{
scanf("%lf",&x[i][j]);
sum[i]=sum[i]+x[i][j];
count[i]=count[i]+1;
}
}
for(i=0;i<n;i++)
{
summ=0;
a=(double)sum[i]/count[i];
for(j=0;j<number[i];j++)
{
b=x[i][j]-a;
c=pow(b,2);
summ=summ+c;
}
t=(double)summ/count[i];
result[i]=sqrt(t);
}
for(i=0;i<n;i++)
{
printf("%.5lf\n",result[i]);
}
return 0;
}
|
38
|
18678
|
int main(){
int k,i,n,j;
double he=0;
double sz[100],sum=0;
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&sz[j]);
sum+=sz[j];
}
//printf("%.5lf\n",sum);
double x=sum/(double)n;
//printf("%.5lf\n",x);
for(j=0;j<n;j++){
double yige=(sz[j]-x)*(sz[j]-x);
he += yige;
}
double s=sqrt(he/n);
printf("%.5lf\n",s);
sum=0;
he=0;
}
return 0;
}
|
38
|
18679
|
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,*p;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d",&n1);
p=&sz[0];
for(j=0;j<n1;j++){
scanf("%lf",p+j);
}
for(j=0;j<n1;j++){
x+=*(p+j);
}
x/=n1;
for(j=0;j<n1;j++){
s+=(*(p+j)-x)*(*(p+j)-x);
}
s/=n1;
s=pow(s,0.5);
printf("%.5f\n",s);
x=0;
s=0;
}
return 0;
}
|
38
|
18680
|
int main()
{
int k;
cin>>k;
for(int time=0;time<k;time++)
{
long double a[1001]={0},*p, sum=0;
int n;
cin>>n;
p=a;
for(int i=0;i<n;i++)
cin>>*p++;
p=a;
for(int i=0;i<n;i++)
sum+=*p++;
long double aver=sum/n,squ=0;
p=a;
for(int i=0;i<n;i++)
squ+=((*p++) -aver)*((*p)-aver);
long double result=sqrt(squ/n*1.0);
cout<<setprecision(5)<<fixed<<result<<endl;
}
return 0;
}
|
38
|
18681
|
int main(){
int k,n,i,j;
double x[4000][101],s[4000],a[4000],t[4000];
scanf("%d",&k);
for(i=0;i<k;i++){
a[i]=0;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&x[i][j]);
a[i]+=x[i][j];
}
a[i]=a[i]/n;
t[i]=0;
for(j=0;j<n;j++){
t[i]+=(x[i][j]-a[i])*(x[i][j]-a[i]);
}
s[i]=sqrt(t[i]/n);
}
for(i=0;i<k;i++){
printf("%.5lf\n",s[i]);
}
return 0;
}
|
38
|
18682
|
int main()
{
int n,m,i,j;
double l[1000],k[100],s=0,h=0,a,b;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d",&m);
for(j=0;j<m;j++){
scanf("%lf",&l[j]);
s=s+l[j];
}
a=(double)(s/m);
for(j=0;j<m;j++){
h=h+(l[j]-a)*(l[j]-a);
}
b=(double)(h/m);
k[i]=sqrt(b);
s=0;
h=0;
}
for(i=0;i<n;i++){
printf("%.5lf\n",k[i]);
}
return 0;
}
|
38
|
18683
|
void main(void)
{
int k;
scanf("%d",&k);
for(;k>0;k--)
{
int n;
double x[100];
scanf("%d",&n);
int i;
double add_sqr=0,a=0;
for(i=0;i<=n-1;i++)
{
scanf("%lf",&x[i]);
add_sqr+=x[i]*x[i];
a+=x[i];
}
add_sqr/=n;
a/=n;
printf("%.5lf\n",sqrt(add_sqr-a*a));
}
}
|
38
|
18684
|
int main()
{
int k,i,n,j;
double x[100],a=0,s=0,sum=0,upper=0;
scanf("%d",&k);
for(i=1;i<=k;i++)
{
sum=0,upper=0;
scanf("%d",&n);
for(j=1;j<=n;j++)
{
scanf("%lf",&x[j]);
sum=sum+x[j];
}
a=sum/n;
for(j=1;j<=n;j++)
{
upper=upper+pow((x[j]-a),2);
}
s=sqrt(upper/n);
printf("%.5lf\n",s);
}
return 0;
}
|
38
|
18685
|
int main() {
int n;
cin >> n;
for ( int i = 1; i <= n; i ++ ) {
double m;
double x[101];
double *p;
p = x;
double ave = 0, sum = 0;
cin >> m;
for ( int j = 1; j <= m; j ++ ) {
cin >> *( p + j);
ave += *( p + j) / m;
}
for ( int j = 1; j <= m; j ++ ) {
sum += ( *( p + j) - ave ) * ( *( p + j) - ave );
}
cout << fixed << setprecision(5) << sqrt ( sum / m ) << endl;
}
return 0;
}
|
38
|
18686
|
int main()
{
int n,k;double a[200]={0}; double sum=0;double b,c; double sum2=0;
scanf("%d",&n);
int i,j;
for(i=0;i<n;i++)
{
scanf("%d",&k);
for(j=0;j<k;j++)
{
scanf("%lf",&a[j]);
sum=sum+a[j];
}
b=sum/k;
for(j=0;j<k;j++)
{
sum2+=(a[j]-b)*(a[j]-b);
}
c=sqrt(sum2/k);
printf("%.5lf\n",c);
for(j=0;j<k;j++)
{
a[j]=0;
}
k=0;
sum=0;
sum2=0;
}
return 0;
}
|
38
|
18687
|
int main()
{
int i,n,n1,j;
double s=0,sum=0,av;
double fc[100];
scanf("%d",&n);
double x[100];
for(i=0;i<n;i++){
sum=0;
s=0;
scanf("%d",&n1);
for(j=0;j<n1;j++){
scanf("%lf",&x[j]);
sum+=x[j];
}
av=sum/n1;
for(j=0;j<n1;j++){
s+=(x[j]-av)*(x[j]-av);
}
fc[i]=sqrt(1.0*s/n1);
}
for(i=0;i<n;i++){
printf("%.5lf\n",fc[i]);
}
return 0;
}
|
38
|
18688
|
int main (){
int m,n,i,j;
double a[100],s[100],x[100],zh,pfh;
for(i=0;i<100;i++){
s[i]=a[i]=0;
}
scanf("%d", &n);
for(i=0;i<n;i++){
scanf("%d", &m);
zh=0;pfh=0;
for(j=0;j<m;j++){
scanf("%lf", &x[j]);
zh+=x[j];
}
a[i]=zh/m;
for(j=0;j<m;j++){
pfh+=(x[j]-a[i])*(x[j]-a[i]);
}
s[i]=(double)sqrt(pfh/m);
}
for(i=0;i<n;i++){
printf("%.5lf\n",s[i]);
}
return 0;
}
|
38
|
18689
|
int main()
{
int n,m;
double sz[2000];
int i,j;
double average,sum=0,count=0,fangcha;
scanf("%d",&n);
for(i=0;i<n;i++)
{
sum=0;
average=0;
fangcha=0;
count=0;
for(j=0;j<m;j++)
{
sz[i]=0;
}
scanf("%d",&m);
for(j=0;j<m;j++)
{
scanf("%lf",&sz[j]);
sum=sum+sz[j];
}
average=sum/m;
for(j=0;j<m;j++)
{
count=count+(sz[j]-average)*(sz[j]-average);
}
fangcha=count/m;
fangcha=sqrt(fangcha);
printf("%.5lf\n",fangcha);
}
return 0;
}
|
38
|
18690
|
int main(){
int n,k,i,j;
double a[1000],ave,sum[100]={0},s1[100]={0},s[100]={0};
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&a[j]);
sum[i]+=a[j];
}
ave=sum[i]/n;
for(j=0;j<n;j++){
s1[i]+=(a[j]-ave)*(a[j]-ave);
}
s[i]=sqrt(s1[i]/n);
}
for(i=0;i<k;i++){
printf("%.5lf\n",s[i]);
}
return 0;
}
|
38
|
18691
|
double nums[100];
int main() {
int k;
scanf("%d", &k);
int i;
for (i = 0; i < k; i++) {
int n;
scanf("%d", &n);
int j;
double sum = 0.0;
for (j = 0; j < n; j++) {
scanf("%lf", nums + j);
sum += *(nums + j);
}
double avg = sum / n;
double s = 0;
for (j = 0; j < n; j++) {
double num = *(nums + j);
s += (num - avg)*(num - avg);
}
s /= n;
s = sqrt(s);
printf("%.5lf\n", s);
}
}
|
38
|
18692
|
int main()
{
int k,n,i,j,l,m,y;
double *p[100],*pp[100],a,x=0,b=0,c;
scanf("%d",&k);
for (i=0;i<k;i++)
{
scanf("%d",&n);
p[i]=(double * )malloc(100*sizeof(double));
x=0;
for (j=0;j<n;j++)
{
scanf("%lf",p[i]++);
x=x+*(p[i]-1);
}
a=x/n;
p[i]=p[i]-n;
b=0;
for (y=0;y<n;y++)
{
b=b+pow((*(p[i]+y)-a),2);
}
pp[i]=(double * )malloc(sizeof(double));
*pp[i]=sqrt(b/n);
}
for (i=0;i<k;i++)
{
printf("%.5f\n",*pp[i]);
}
}
|
38
|
18693
|
int main()
{
int i,j,k;
double S[10000];
scanf("%d",&k);
for(i=0;i<k;i++)
{
int n;
double x[100],sum_x=0,a;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
sum_x+=x[j];
}
a=sum_x/(double)n;
double sum_X=0;
for(j=0;j<n;j++)
sum_X+=pow((x[j]-a),2);
S[i]=sqrt(sum_X/(double)n);
}
for(i=0;i<k;i++)
printf("%.5lf\n",S[i]);
return 0;
}
|
38
|
18694
|
int main()
{
int k,n,i,j;
double x[100],*p,a,s,S;
scanf("%d",&k);
p=(double *)malloc(sizeof(double)*k);
for(i=0;i<k;i++){
scanf("%d",&n);
a=0;
s=0;
for(j=0;j<n;j++){
scanf("%lf",&x[j]);
a+=x[j]/n;}
for(j=0;j<n;j++)
s+=(x[j]-a)*(x[j]-a)/n;
S=sqrt(s);
*(p+i)=S;}
for(i=0;i<k;i++)
printf("%.5f\n",p[i]);
free(p);
return 0;
}
|
38
|
18695
|
int main()
{
int k,n,i,j;
double *s;
scanf("%d",&k);
s=(double*)malloc(sizeof(double)*k);
for(i=0;i<k;i++)
{
scanf("%d",&n);
double *x;
x=(double *)malloc(sizeof(double)*n);
double a=0;
double b=0;
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
a+=x[j];
}
a=a/n;
for(j=0;j<n;j++)
{
b+=(x[j]-a)*(x[j]-a);
}
s[i]=(sqrt)(b/n);
free(x);
}
for(i=0;i<k;i++)
{
printf("%.5lf\n",s[i]);
}
free(s);
return 0;
}
|
38
|
18696
|
int main(){
int n,i,m;
double sz[100],*p;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d",&m);
for(p=sz;p<sz+m;p++){
scanf("%lf",p);
}
double aver,sum=0;
for(p=sz;p<sz+m;p++){
sum=sum+*p;
}
aver=sum/m;
sum=0;
for(p=sz;p<sz+m;p++){
sum=sum+pow((*p-aver),2);
}
double jfc;
jfc=sqrt(sum/m);
printf("%.5lf\n",jfc);
}
return 0;
}
|
38
|
18697
|
void main()
{
double *t[100],*p,a,s;
int k,i,j,n;
scanf("%d",&k);
for(j=0;j<k;j++)
{a=s=0;
scanf("%d",&n);
t[j]=(double*)calloc(150,sizeof(double));
p=t[j];
for(i=0;i<n;i++)
scanf("%lf",p+i);
for(i=0;i<n;i++)
a=a+*(p+i);
a=a/n;
for(i=0;i<n;i++)
s=s+pow(*(p+i)-a,2);
s=s/n;
s=sqrt(s);
printf("%.5f\n",s);
}
}
|
38
|
18698
|
int main(){
int k,i,j;
double a[100],sum,sum1,aver,S,n;
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%lf",&n);
sum=0;
sum1=0;
for(j=0;j<n;j++){
scanf("%lf",&(a[j]));
sum+=a[j];
}
aver=sum/n;
for(j=0;j<n;j++){
a[j]=(a[j]-aver)*(a[j]-aver);
sum1+=a[j];
}
S=sqrt(sum1/n);
printf("%.5lf\n",S);
}
return 0;
}
|
38
|
18699
|
int main ()
{
double fangcha(double *p,int n,double fc);
int n,k,i,j;
double a[1000],*p,fc=0;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&k);
for(j=0;j<k;j++)
scanf("%lf",&a[j]);
p=a;
if(i)
printf("\n");
printf("%.5f",fangcha(p,k,fc));
}
return 0;
}
double fangcha(double *p,int n,double fc)
{
double aver,sum=0;
int i;
for(i=0;i<n;i++)
sum+=*(p+i);
aver=sum/n;
sum=0;
for(i=0;i<n;i++)
{
sum+=(*(p+i)-aver)*(*(p+i)-aver);
}
fc=sqrt(sum/n);
return fc;
}
|
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