Submission #1027680

#	Time	Username	Problem	Language	Result	Execution time	Memory
1027680		vjudge1	Trampoline (info1cup20_trampoline)	C++17	0 / 100	43 ms	5024 KiB

trampoline

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
using namespace std;
 
#define int long long
#define OYY LLONG_MAX
#define mod 998244353
#define faster ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define FOR for(int i=1;i<=n;i++)
#define mid (start+end)/2
#define lim 2505
#define fi first
#define se second

vector<int> v[lim];

int32_t main(){
	faster
	int r,c,n;cin>>r>>c>>n;
	FOR{
		int x,y;cin>>x>>y;
		v[x].push_back(y);
	}
	
	for(int i=1;i<=r;i++){
		sort(v[i].begin(),v[i].end());
	}
	
	int q;cin>>q;
	while(q--){
		int x1,y1,x2,y2;cin>>x1>>y1>>x2>>y2;
		bool stop=1;
		while(x1!=x2 && y1<=y2 && stop){
			int tut=lower_bound(v[x1].begin(),v[x1].end(),y1)-v[x1].begin();
			if(tut>=v[x1].size()){
				stop=0;
				break;
			}
			y1=v[x1][tut];
			x1++;
		}
		if(x1==x2 && y1<=y2)stop=1;
		if(stop){
			cout<<"Yes"<<'\n';
		}
		else cout<<"No"<<'\n';
		
	}
	return 0;
}
 

Compilation message (stderr)

trampoline.cpp: In function 'int32_t main()':
trampoline.cpp:36:10: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |    if(tut>=v[x1].size()){
      |       ~~~^~~~~~~~~~~~~~

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