Submission #522144

#	Time	Username	Problem	Language	Result	Execution time	Memory
522144		maks007	Trampoline (info1cup20_trampoline)	C++14	73 / 100	2097 ms	21656 KiB

trampoline

#include <bits/stdc++.h>
 
using namespace std;
 
int main(void) {
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n, m;
	cin >> n >> m;
	map <int,vector <int>> a;
	int q;
	cin >> q;
	vector <pair <int,int>> temp;
	while(q --) {
		int x, y;
		cin >> x >> y;
		x --;
		y --;
		temp.push_back({x, y});
	}
	sort(temp.begin(), temp.end());
	for(int i = 0; i < temp.size(); i ++) {
		a[temp[i].first].push_back(temp[i].second);
	}
	cin >> q;
	while(q --) {
		int startx, starty, endx, endy;
		cin >> startx >> starty >> endx >> endy;
		startx --;
		starty --;
		endx --;
		endy --;
		while(startx != endx) {
			auto it = lower_bound(a[startx].begin(), a[startx].end(), starty);
			if(it == a[startx].end()) {
				goto end;
			}
			startx ++;
			starty = *it;
		}
		if(startx == endx and starty <= endy){
			cout << "Yes\n";
		}else cout << "No\n";
		continue;
		end:;
		cout << "No\n";
	}
	return false;
}

Compilation message (stderr)

trampoline.cpp: In function 'int main()':
trampoline.cpp:22:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |  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