Submission #71302202

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Source Code Expand

#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#define debug(arg) cout << "[" << #arg << "]: " << arg << endl
#else
#define debug(arg) 42
#endif

using llu = unsigned long long;
using ll = long long;

#define vec vector
#define pb push_back
#define all(n) begin(n), end(n)

void solv() {
	int n, m; cin >> n >> m;
	vec<int> cnt(m), s(m);
	while (n--) {
		int a, b; cin >> a >> b, --a;
		s[a] += b;
		cnt[a]++;
	}
	for (int i = 0; i < m; ++i) cout << s[i]*1.0/cnt[i] << '\n';
}

signed main() {
	cout << fixed << setprecision(18);
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int t = 1;
	//cin >> t;
	while (t--) solv();
	return 0;
}

Submission Info

Judge Result