Submission #1027811

#	Time	Username	Problem	Language	Result	Execution time	Memory
1027811		vjudge1	Trampoline (info1cup20_trampoline)	C++17	43 / 100	564 ms	14164 KiB

trampoline

#include<bits/stdc++.h>
using namespace std;
#define lalala ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
//#define ll long long
//#define int long long int
#define endl '\n'
#define N 2520
//#define M 400100
//#define big 2147483647 
//#define bigg 9223372036854775807 
//#define pb push_back
#define p push
//#define ins insert
#define f first
#define s second

bool arr[N][N],green[N][N];
//int hesap(int x,int y,int r,int c)
inline bool dfs(int x,int y,int a,int b,int r,int c){
	queue<pair<int,int>> q;
	q.p({x,y});
	if(x>a)return 0;
	if(y>b)return 0;
	if(x==a)return 1;
	while(q.size()){
		x=q.front().f,y=q.front().s;
		q.pop();
		if(arr[x][y])continue;
		arr[x][y]=1;
		if(x==a&&y<=b)return 1;
		if(y>b)continue;
		if(x>a)continue;
		if(x!=r&&arr[x+1][y]==0&&green[x][y]){
			q.p({x+1,y});
			continue;
		}

		if(y!=c&&arr[x][y+1]==0){
			q.p({x,y+1});
		}
	}
	return 0;
}

signed main(){
	lalala;
	int r,c,n;cin>>r>>c>>n;
	vector<int> yedek;
	for(int i=0;i<n;i++){
		int a,b;cin>>a>>b;
		green[a][b]=1;
	}
	int q;cin>>q;

	while(q--){
		memset(arr,0,sizeof(arr));
		int x,y,a,b;cin>>x>>y>>a>>b;
		int ok=dfs(x,y,a,b,r,c);
		if(ok)cout<<"Yes"<<endl;
		else cout<<"No"<<endl;
	}
	
}

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