Submission #71368357

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Source Code Expand

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

#define ll long long
#define all(v) v.begin(), v.end()
#define memo(v, x) memset(v, x, sizeof(v))

void solve() {
    cout << fixed << setprecision(5);
    int n, m;
    cin >> n >> m;
    map<int, int> sum, cnt;
    for (int i = 0; i < n; i++) {
        int t, s;
        cin >> t >> s;
        sum[t] += s;
        cnt[t]++;
    }
    for (int i = 1; i <= m; i++) {
        cout << (long double) sum[i] / cnt[i] << '\n';
    }
}

int main() {
    cin.tie(0) -> sync_with_stdio(0);
#ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    int tc = 1;
    // cin >> tc;
    for (int t = 1; t <= tc; t++) {
        solve();
    }
    return 0;
}

Submission Info

Judge Result