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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#91006#6128. Flippy SequenceyyyyxhWA 112ms3476kbC++17644b2023-03-26 16:43:022023-03-26 16:43:03

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.
  • [2023-03-26 16:43:03]
  • 评测
  • 测评结果:WA
  • 用时:112ms
  • 内存:3476kb
  • [2023-03-26 16:43:02]
  • 提交

answer

#include <cstdio>
using namespace std;
int read(){
	char c=getchar();int x=0;
	while(c<48||c>57) c=getchar();
	do x=(x<<1)+(x<<3)+(c^48),c=getchar();
	while(c>=48&&c<=57);
	return x;
}
char s[1000003];
char t[1000003];
int main(){
	int tc;
	scanf("%d",&tc);
	while(tc--){
		int n;
		scanf("%d",&n);
		scanf("%s",s+1);
		scanf("%s",t+1);
		int len=0,cnt=0;
		bool on=0;
		for(int i=1;i<=n;++i)
			if(s[i]!=t[i]){
				on=1;
				++len;
			}
			else{
				if(on) ++cnt;
				on=0;
			}
		if(on) ++cnt;
		if(cnt==1){
			printf("%d\n",(len-1)<<1);
		}
		else if(cnt==2) puts("6");
		else puts("0");
	}
	return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 1ms
memory: 1568kb

input:

3
1
1
0
2
00
11
5
01010
00111

output:

0
2
6

result:

ok 3 number(s): "0 2 6"

Test #2:

score: -100
Wrong Answer
time: 112ms
memory: 3476kb

input:

126648
1
0
0
1
1
0
2
01
01
2
01
11
2
10
11
2
11
00
3
011
011
3
010
110
3
011
001
3
111
001
3
001
000
3
101
000
3
011
000
3
111
000
4
1111
1111
4
1110
0110
4
0010
0110
4
1011
0111
4
1001
1011
4
0100
1110
4
0000
0110
4
0111
1001
4
1001
1000
4
1011
0010
4
0001
0100
4
1000
0101
4
0100
0111
4
1101
0110
4...

output:

0
0
0
0
0
2
0
0
0
2
0
6
2
4
0
0
0
2
0
6
2
4
0
6
6
6
2
6
4
6
0
0
0
2
0
6
2
4
0
6
6
6
2
6
4
6
0
6
6
6
6
0
6
6
2
6
6
6
4
6
6
8
0
0
0
2
0
6
2
4
0
6
6
6
2
6
4
6
0
6
6
6
6
0
6
6
2
6
6
6
4
6
6
8
0
6
6
6
6
0
6
6
6
0
0
0
6
0
6
6
2
6
6
6
6
0
6
6
4
6
6
6
6
6
8
10
0
0
0
2
0
6
2
4
0
6
6
6
2
6
4
6
0
6
6
6
6
0
6
6...

result:

wrong answer 1st numbers differ - expected: '1', found: '0'