UVa 11628 - Another lottery

11628.cpp

#include <bits/stdc++.h>
using namespace std;

#define F first
#define S second
#define PB push_back
#define endl '\n'

typedef long long ll;
typedef vector<ll> vll;
typedef pair<int, int> ii;
typedef vector<ii> vii;
typedef vector<int> vi;

int main() {
    int n, m, sum, gcd;
    while(cin >> n >> m && (n + m)) {

        vi A(n);
        for(int i=0; i<n; i++)
            for(int j=0; j<m; j++) cin >> A[i];

        sum = accumulate(A.begin(), A.end(), 0);
        for(int i : A) {
            gcd = __gcd(i, sum);
            printf("%d / %d\n", i / gcd, sum / gcd);
        }
    }

    return 0;
}