제출 #488045

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
488045		maks007	Trampoline (info1cup20_trampoline)	C++14	73 / 100	2073 ms	21560 KiB

trampoline

#include <bits/stdc++.h>
 
using namespace std;
 
void solve() {
	int r, c;
	cin >> r >> c;
	int n;
	cin >> n;
	vector <pair<int, int>> temp;
	map <int, vector <int>> mp;
	for(int i = 0; i < n; i ++) {
		int a, b;
		cin >> a >> b;
		a --;
		b --;
		#define pb push_back
		temp.pb({a, b});
	}
	sort(temp.begin(), temp.end());
	for(int i = 0; i < temp.size(); i ++) {
		mp[temp[i].first].push_back(temp[i].second);
	}
	int T;
	cin >> T;
	while(T --) {
		pair <int, int> start, end;
		cin >> start.first >> start.second >> end.first >> end.second;
		start.first --;
		start.second --;
		end.first --;
		end.second --;
		int x1 = start.first;
		int y1 = start.second;
		int x2 = end.first;
		int y2 = end.second;
		while(x1 != x2) {
			if(mp[x1].empty()) break;
			auto temp = lower_bound(mp[x1].begin(), mp[x1].end(), y1);
			if(temp == mp[x1].end()) break;
			y1 = *temp; x1 ++;
		}
		if(x1 == x2 and y1 <= y2) cout << "Yes\n";
		else cout << "No\n";
	}
}
 
int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	int Q = 1;
	//cin >> Q;
	while (Q --) {
		solve();
	}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

trampoline.cpp: In function 'void solve()':
trampoline.cpp:21:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |  for(int i = 0; i < temp.size(); i ++) {
      |                 ~~^~~~~~~~~~~~~

• Subtask 1: 23 / 23
• Subtask 2: 20 / 20
• Subtask 3: 11 / 11
• Subtask 4: 19 / 19
• Subtask 5: 0 / 27