func_code_string: #include <bits/stdc++.h>   #pragma GCC optimize(2)   using namespace std;   inline void read(long long &x) {     x = 0;     long long f = 1;     char s = getchar();     while (s <  0  || s >  9 ) {       if (s ==  - ) f = -1;       s = getchar();     }     while (s >=  0  && s <=  9 ) {       x = (x << 3) + (x << 1) + (s ^ 48);       s = getchar();     }     x *= f;   }   inline long long Max(long long x, long long y) { return x > y ? x : y; }   inline long long Min(long long x, long long y) { return x < y ? x : y; }   long long Gcd(long long a, long long b) {     if (!b) return a;     return Gcd(b, a % b);   }   inline long long Abs(long long x) {     if (x < 0) return -x;     return x;   }   inline double Fabs(double x) {     if (x > 0) return x;     return -x;   }   long long a[100005];   int main() {     long long n;     read(n);     long long XiangMeiHaoGuai = 1;     if (XiangMeiHaoGuai + 1 == 3) printf( SXYYouYiGeQiaoPiGu );     for (register int i = 1; i <= n; ++i) read(a[i]);     if (XiangMeiHaoGuai + 1 == 3) printf( SXYYouYiGeQiaoPiGu );     sort(a + 1, a + 1 + n);     if (XiangMeiHaoGuai + 1 == 3) printf( SXYYouYiGeQiaoPiGu );     long long FuckingAns = a[2] - a[1];     if (XiangMeiHaoGuai + 1 == 3) printf( SXYYouYiGeQiaoPiGu );     for (register int i = 3; i <= n; ++i)       FuckingAns = Gcd(FuckingAns, a[i] - a[i - 1]);     if (XiangMeiHaoGuai + 1 == 3) printf( SXYYouYiGeQiaoPiGu );     long long FuckingDis = a[n] - a[1], Sucky = 1 - n;     printf( %lld , FuckingDis / FuckingAns + Sucky);     if (XiangMeiHaoGuai + 1 == 3) printf( SXYYouYiGeQiaoPiGu );     return 0;   }   