fzu 1150 Farmer Bill's Problem

#include<stdio.h>#include<string.h>#include<algorithm>using namespace std;int main(){    int n,m,k,ans;    while(~scanf("%d%d",&n,&k))    {        ans=0;        m=0;        ans=n;        m=n;        while(n>=k)        {            m=n/k;            ans+=n/k;            n=n%k;            n+=m;        }        printf("%d\n",ans);    }    return 0;}