原来强行转int可以避免四舍五入啊

#include<iostream>

#include<cstdio>

using namespace std;

int r,y;

double m;

int main()

{

	scanf("%d%lf%d",&r,&m,&y);

	double l=1.0+(double)r/100.0;

	for(int i=1;i<=y;i++)

		m*=l;

	printf("%d\n",(int)m);

	return 0;

}