Sicily10330

#include <iostream>#include <cstdio>#include <algorithm>#include <cstring>#include <list>using namespace std;int main(){int n,m;scanf("%d%d",&n,&m);if (n%m==0)  printf("0\n");  else  {    if (m%n==0)      printf("%d\n",(m/n-1)*n);    else    {    int ans=0;    int total=0;    int counter=1;    int left=0;    while (counter<=n)    {    total=m+left;    if (total%n!=0)    {      ans+=total/n;      left=total-total/n*n;    }    else    {      ans+=total/n-1;    left=0;    }    counter++;    }    printf("%d\n",ans);    }  }}