Submission #1111560

#	Time	Username	Problem	Language	Result	Execution time	Memory
1111560		YSH2020	Drivers (BOI24_drivers)	C++17	0 / 100	2093 ms	392772 KiB

Main

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

int main() {
	int n, m, u; cin >> n >> m >> u;
	vector <vector<pair<int, int>>> edges;
	vector<pair<int, int>> empty;
	for (int i= 0; i < n+5; i++) edges.push_back(empty);
	for (int i = 0; i < m; i++) {
		int x, y, z; cin >> x >> y >> z;
		edges[x].push_back({y, z});
		edges[y].push_back({x, z});
	}
	int ans[n+5][n+5];
	for (int i = 1; i <= n; i++) {
		//dijkstra from here?
		for (int j =1; j <= n; j++) ans[i][j] = 1000000500;
		ans[i][i] = 0;
		priority_queue <pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> pq;
		pq.push({0, i});
		while (pq.size() > 0) {
			auto tmp = pq.top();
			pq.pop();
			if (tmp.first > ans[i][tmp.second]) continue;
			ans[i][tmp.second] = tmp.first;
			for (auto k:edges[tmp.second]) {
				if (max(tmp.first, k.second) < ans[i][k.first]) {ans[i][k.first] = max(tmp.first, k.second); pq.push({max(tmp.first, k.second), k.first});}
			}
		}
	}
	while (u--) {
		int x, y, z; cin >> x >> y >> z;
		if (ans[x][y] > z) cout << "NE" << '\n';
		else cout << "TAIP" << '\n';
	}
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 11
• Subtask 3: 0 / 11
• Subtask 4: 0 / 23
• Subtask 5: 0 / 45