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Submission #223933

# Submission time Handle Problem Language Result Execution time Memory
223933 2020-04-16T21:40:04 Z super_j6 timeismoney (balkan11_timeismoney) C++14
25 / 100
 2000 ms 57424 KB 
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <vector>
using namespace std;
#define endl '\n'
#define ll long long
#define pi pair<ll, int>
#define f first
#define s second

const int maxn = 200, maxm = 10000;
int n, m;
int it[maxm], u[maxm], v[maxm], a[maxm], b[maxm];
int par[maxn], rnk[maxn];
vector<pi> ans;

int find(int x){
	return x == par[x] ? x : par[x] = find(par[x]);
}

pi mst(ll x, ll y, bool t = 0){
	for(int i = 0; i < n; i++) par[i] = i, rnk[i] = 0;
	sort(it, it + m, [&](int i, int j){
		return a[i] * x + b[i] * y < a[j] * x + b[j] * y;
	});

	pi ret = {0, 0};
	for(int i = 0; i < m; i++){
		int j = it[i];
		int w = find(u[j]), z = find(v[j]);
		if(w != z){
			ret.f += a[j], ret.s += b[j];
			if(t) ans.push_back({u[j], v[j]});
			if(rnk[w] < rnk[z]) swap(w, z);
			rnk[w] += rnk[w] == rnk[z];
			par[z] = w;
		}
	}
	
	return ret;
}

bool operator<(pi x, pi y){
	return x.f * x.s < y.f * y.s;
}

pi solve(pi l, pi r){
	pi p = mst(r.s - l.s, l.f - r.f);
	if(p == l || p == r) return min(l, r);
	return min(solve(l, p), solve(p, r));
}

int main(){
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	
	cin >> n >> m;
	
	for(int i = 0; i < m; i++){
		cin >> u[i] >> v[i] >> a[i] >> b[i];
		it[i] = i;
	}
	
	pi ret = solve(mst(0, 1), mst(1, 0));
	ret = mst(ret.s, ret.f, 1);
	
	cout << ret.f << " " << ret.s << endl;
	for(pi i : ans) cout << i.f << " " << i.s << endl;
	
	return 0;
}

Subtask #1
25.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Execution timed out 2089 ms 57424 KB Time limit exceeded
5 Execution timed out 2089 ms 11640 KB Time limit exceeded
6 Execution timed out 2089 ms 12700 KB Time limit exceeded
7 Execution timed out 2097 ms 2680 KB Time limit exceeded
8 Execution timed out 2086 ms 900 KB Time limit exceeded
9 Correct 5 ms 384 KB Output is correct
10 Incorrect 4 ms 384 KB Output isn't correct
11 Correct 4 ms 384 KB Output is correct
12 Incorrect 4 ms 384 KB Output isn't correct
13 Incorrect 5 ms 384 KB Output isn't correct
14 Incorrect 8 ms 384 KB Output isn't correct
15 Incorrect 7 ms 384 KB Output isn't correct
16 Execution timed out 2085 ms 1568 KB Time limit exceeded
17 Execution timed out 2084 ms 1528 KB Time limit exceeded
18 Execution timed out 2080 ms 1656 KB Time limit exceeded
19 Execution timed out 2076 ms 1040 KB Time limit exceeded
20 Execution timed out 2098 ms 632 KB Time limit exceeded