#include <iostream>
#include <cmath>
#include <fstream>
#include <sstream>

using namespace std;

int main(){
    int n;
    int m;
    cin >> n;
    cin >> m;
    //double md=6.6;
    double votes[10001];
    for(int i=0;i<m;i++){
        int k;
        cin >> k;
        votes[k-1]++;

    }
    for(int i=0;i<n;i++){
        double chance = (double)votes[i]*100/m;
        printf("%2.2f",chance);
        cout << "%" << endl;
    }
}

why do i have WA on case 6? I'm stuck

before using array add these lines:

for(int i=0; i<n; i++)
  votes[i] = 0