Submission #460834

#	Time	Username	Problem	Language	Result	Execution time	Memory
460834		bigo	Fountain (eJOI20_fountain)	C++14	30 / 100	1155 ms	524292 KiB

fountain

#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> pii;
int main() {
	int n, q;
	cin >> n >> q;
	vector<pii>vec(n);
	for (int i = 0; i < n; i++) {
		cin >> vec[i].first >> vec[i].second;
	}
	vector<vector<int>>sed(n);
	for (int i = 0; i < n; i++) {
		sed[i].push_back(i+1);
		for (int j = i + 1; j < n; j++) {
			if (vec[sed[i][sed[i].size() - 1]-1].first < vec[j].first)
				sed[i].push_back(j+1);
		}
	}
	vector<int>ans1;
	while (q--) {
		int r, c;
		cin >> r >> c;
		vector<int>tmp = sed[r - 1];
		int ans = -1;
		for (int i = 0; i < tmp.size(); i++) {
			if ((c - vec[tmp[i]-1].second) > 0) {
				c -= vec[tmp[i]-1].second;
			}
			else {
				ans = tmp[i];
				break;
			}
		}
		if (ans == -1)
			ans = 0;
		ans1.push_back(ans);
	}
	for (int i = 0; i < ans1.size(); i++) {
		cout << ans1[i] << endl;
	}
}

Compilation message (stderr)

fountain.cpp: In function 'int main()':
fountain.cpp:25:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |   for (int i = 0; i < tmp.size(); i++) {
      |                   ~~^~~~~~~~~~~~
fountain.cpp:38:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for (int i = 0; i < ans1.size(); i++) {
      |                  ~~^~~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 0 / 30
• Subtask 3: 0 / 40