听取WA声一片， 必关

#include<bits/stdc++.h>
using namespace std;
int n, m;
int main() {
    cin >> n >> m;
    for(int i = 0; i <= n; i++) {
        for(int j = 0; j <= m; j++) {
            if(i == 0 && j == 0) cout << "\t";
            else if(i == 0) cout << j << "%\t";
            else if(j == 0) cout << i;
            else {
                printf("\t%.4lf",((double)(round((1-pow((1+(double)j/100),(double)(-i)))/((double)j/100)*10000)))/10000);
            }
        }
        cout << "\n";
    }
    return 0;
}