poj 2390 水题 Bank Interest

#include <stdio.h>#include <iostream>#include <cmath>using namespace std;int main(){    int r,m,y,t;    double sum=0;    cin>>r>>m>>y;    sum=m*pow((1+r/100.0),y);   // cout<<sum<<endl;    t=(int)sum;    cout<<t<<endl;    //printf("%d\n",（int）sum);    system("PAUSE");    return 0;}