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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#28350#2353. Maharajas are Going HomeWu_RenWA 348ms23576kbC++171.3kb2022-04-13 18:51:472022-04-29 09:39:40

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2022-04-29 09:39:40]
  • 评测
  • 测评结果:WA
  • 用时:348ms
  • 内存:23576kb
  • [2022-04-13 18:51:47]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
int n=2000;
bitset<4001>r[2010],c[2010],h[4010],*d,tp;
int sg[2010][2010],x[20],y[20];
void sol(){
	scanf("%d",&n);
	int ans=0;
	for(int i=1;i<=n;i++) scanf("%d%d",&x[i],&y[i]),x[i]--,y[i]--,ans^=sg[x[i]][y[i]];
	if(ans){
		for(int i=1;i<=n;i++) if(sg[x[i]][y[i]]>(ans^sg[x[i]][y[i]])){
			int w=ans^sg[x[i]][y[i]];
			printf("%d ",i);
			bool fl=1;
			for(int j=0;j<y[i]&&fl;j++) if(sg[x[i]][j]==w) printf("%d %d\n",x[i]+1,j+1),fl=0;
			for(int j=0;j<x[i]&&fl;j++) if(sg[j][y[i]]==w) printf("%d %d\n",j+1,y[i]+1),fl=0;
			for(int j=1;j<=x[i]&&j<=y[i]&&fl;j++) if(sg[x[i]-j][y[i]-j]==w) printf("%d %d\n",x[i]-j+1,y[i]-j+1),fl=0;
			if(fl&&x[i]>1&&y[i]>0&&sg[x[i]-2][y[i]-1]==w) printf("%d %d\n",x[i]-1,y[i]),fl=0;
			if(fl&&x[i]>0&&y[i]>1&&sg[x[i]-1][y[i]-2]==w) printf("%d %d\n",x[i],y[i]-1),fl=0;
			assert(!fl);
			break;
		}
	}
	else puts("-1 -1 -1");
}
void init(int n){
	d=h+n;
	for(int i=0;i<n;i++){
		r[i].set(),c[i].set();
	}
	for(int i=-n+1;i<n;i++) d[i].set();
	for(int i=0;i<n;i++) for(int j=0;j<n;j++){
		tp=r[i]&c[j]&d[i-j];
		if(i>1&&j>0) tp.set(sg[i-2][j-1],0);
		if(i>0&&j>1) tp.set(sg[i-1][j-2],0);
		sg[i][j]=tp._Find_first();
		r[i].set(sg[i][j],0),c[j].set(sg[i][j],0),d[i-j].set(sg[i][j],0);
	}
} 
int main(){
	init(2000); 
	int T;
	scanf("%d",&T);
	while(T--) sol();
}

Details

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Test #1:

score: 100
Accepted
time: 347ms
memory: 23508kb

input:

3
5
2 3
3 2
3 3
3 3
3 3
1
2 4
2
1 1
3 2

output:

3 1 1
-1 -1 -1
2 1 1

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 348ms
memory: 23452kb

input:

1
1
1 1

output:

-1 -1 -1

result:

ok single line: '-1 -1 -1'

Test #3:

score: -100
Wrong Answer
time: 347ms
memory: 23576kb

input:

100
1
5 5
1
1 5
1
5 4
1
4 4
1
2 2
1
5 3
1
4 5
1
2 4
1
4 1
1
3 2
1
3 2
1
1 4
1
2 5
1
4 2
1
5 3
1
5 5
1
4 2
1
3 4
1
3 4
1
4 2
1
3 1
1
1 5
1
1 4
1
4 1
1
4 5
1
2 5
1
5 1
1
4 1
1
2 4
1
2 5
1
3 4
1
2 5
1
5 4
1
4 4
1
2 3
1
3 4
1
5 4
1
1 3
1
3 4
1
1 5
1
5 1
1
2 3
1
3 1
1
1 1
1
5 2
1
2 5
1
1 4
1
3 3
1
4 3
1
...

output:

1 1 1
1 1 1
1 2 4
1 4 2
1 1 1
1 4 2
1 4 2
-1 -1 -1
1 1 1
1 1 1
1 1 1
1 1 1
1 2 4
-1 -1 -1
1 4 2
1 1 1
-1 -1 -1
1 2 4
1 2 4
-1 -1 -1
1 1 1
1 1 1
1 1 1
1 1 1
1 4 2
1 2 4
1 1 1
1 1 1
-1 -1 -1
1 2 4
1 2 4
1 2 4
1 2 4
1 4 2
1 1 1
1 2 4
1 2 4
1 1 1
1 2 4
1 1 1
1 1 1
1 1 1
1 1 1
-1 -1 -1
1 4 2
1 2 4
1 1 1
...

result:

wrong answer 4th lines differ - expected: '1 1 1', found: '1 4 2'