Submission #892852

#	Time	Username	Problem	Language	Result	Execution time	Memory
892852		jellybean	Trampoline (info1cup20_trampoline)	C++17	43 / 100	75 ms	5152 KiB

trampoline

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

vector<int>arr[2505];

signed main(){
	ios::sync_with_stdio(0); cin.tie(0);
	
	int r,c,n; cin>>r>>c>>n;
	for(int i=0; i<n; i++){
		int a,b; cin>>a>>b;
		arr[a].push_back(b); //row a has a green tramp at b
	}
	for(int i=0; i<2505; i++) sort(arr[i].begin(), arr[i].end());
	
	int t; cin>>t;
	while(t--){
		int x1,y1,x2,y2; cin>>x1>>y1>>x2>>y2;
		if(x2<x1) {cout<<"No\n"; continue;}
		int row=x1, col=y1;
		bool f=0;
		while(row!=x2){
			auto it = lower_bound(arr[row].begin(), arr[row].end(), col);
			if(it==arr[row].end()){f=1; cout<<"No\n"; break;}
			col = *it;
			row++;
		}
		if(f) continue;
		if(y2<col) cout<<"No\n";
		else cout<<"Yes\n";
	}
	
	return 0;
}

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