Submission #3416028


Source Code Expand

#include<algorithm>
#include<iostream>
#include<cstring>
#include<cstdio>
#include<cmath>
#define LL long long
#define M 400020
using namespace std;
int read(){
	int nm=0,fh=1; int cw=getchar();
	for(;!isdigit(cw);cw=getchar()) if(cw=='-') fh=-fh;
	for(;isdigit(cw);cw=getchar()) nm=nm*10+(cw-'0');
	return nm*fh;
}
int H,W,n,X[M],Y[M],XX[M],YY[M],L[M<<2],R[M<<2],od[M<<2];
bool on(int x,int y){return x==0||y==0||x==H||y==W;}
int bas(int x,int y){if(!x)return y;if(y==W)return W+x;if(x==H)return W+H+W-y;return W+H+W-x;}
bool cmp(int x,int y){return R[x]<R[y]||(R[x]==R[y]&&L[x]>L[y]);}
int main(){
	//freopen(".in","r",stdin);
	//freopen(".out","w",stdout);
	H=read(),W=read(),n=read();
	for(int i=1;i<=n;i++){
		X[i]=read(),Y[i]=read(),XX[i]=read(),YY[i]=read(),od[i]=i;
		if(!on(X[i],Y[i])||!on(XX[i],YY[i])) i--,n--;
		L[i]=bas(X[i],Y[i]),R[i]=bas(XX[i],YY[i]);
		if(L[i]>R[i]) swap(L[i],R[i]);
	}
	sort(od+1,od+n+1,cmp);
	for(int i=1;i<=n;i++) od[i+n]=od[i]+n,L[i+n]=L[i]+W+H+W+H ,R[i+n]=R[i]+W+H+W+H;
	for(int i=2;i<=(n<<1);i++) if(L[od[i-1]]<L[od[i]]&&R[od[i-1]]<R[od[i]]&&L[od[i]]<R[od[i-1]]){puts("NO");return 0;}
	puts("YES"); return 0;
}

Submission Info

Submission Time
Task E - Connected?
User OYJason
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1181 Byte
Status WA
Exec Time 39 ms
Memory 11264 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 700
Status
AC × 4
AC × 26
WA × 12
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt, s4.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 43.txt, 44.txt, 45.txt, 46.txt, s1.txt, s2.txt, s3.txt, s4.txt
Case Name Status Exec Time Memory
01.txt WA 33 ms 11008 KB
02.txt WA 34 ms 10880 KB
03.txt WA 35 ms 10880 KB
04.txt WA 30 ms 10624 KB
05.txt WA 35 ms 10880 KB
06.txt WA 37 ms 11264 KB
07.txt AC 31 ms 10496 KB
08.txt AC 36 ms 11008 KB
09.txt AC 33 ms 10752 KB
10.txt AC 38 ms 11136 KB
11.txt AC 36 ms 11008 KB
12.txt WA 28 ms 10496 KB
13.txt WA 31 ms 10624 KB
14.txt AC 31 ms 10880 KB
15.txt AC 33 ms 10752 KB
16.txt WA 30 ms 10496 KB
17.txt WA 30 ms 10496 KB
18.txt WA 29 ms 10496 KB
19.txt AC 31 ms 10624 KB
20.txt AC 38 ms 11264 KB
21.txt AC 33 ms 10752 KB
22.txt AC 33 ms 10752 KB
23.txt AC 39 ms 11264 KB
24.txt AC 38 ms 11264 KB
25.txt WA 38 ms 11264 KB
26.txt AC 39 ms 11264 KB
27.txt AC 38 ms 11264 KB
28.txt AC 36 ms 11264 KB
29.txt AC 38 ms 11264 KB
30.txt AC 38 ms 11264 KB
43.txt AC 3 ms 10496 KB
44.txt AC 2 ms 10496 KB
45.txt AC 2 ms 10496 KB
46.txt AC 3 ms 10496 KB
s1.txt AC 2 ms 10496 KB
s2.txt AC 2 ms 10496 KB
s3.txt AC 3 ms 10496 KB
s4.txt AC 2 ms 10496 KB