poj2390

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int r,m,y,i;
    scanf("%d %d %d",&r,&m,&y);
    double ans=m*((double)r/100+1);
    for(i=1;i<y;i++)
    {
        ans*=((double)r/100+1);
    }
    printf("%d",(int)ans);
    return 0;
}

用pow好像更好