QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#242451#5545. Contingency PlanHuangHanShengWA 4ms38004kbC++201.6kb2023-11-07 14:05:582023-11-07 14:05:58

Details

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Test #1:

score: 100
Accepted
time: 4ms
memory: 36828kb

input:

7
1 2
3 7
2 4
2 5
1 3
3 6

output:

7 2
3 2
7 4
7 5
7 1
7 6

result:

ok AC

Test #2:

score: 0
Accepted
time: 0ms
memory: 28408kb

input:

3
1 2
2 3

output:

-1

result:

ok AC

Test #3:

score: 0
Accepted
time: 2ms
memory: 29916kb

input:

2
2 1

output:

-1

result:

ok AC

Test #4:

score: 0
Accepted
time: 0ms
memory: 36572kb

input:

5
2 1
2 3
2 4
4 5

output:

5 1
5 3
5 2
4 2

result:

ok AC

Test #5:

score: 0
Accepted
time: 3ms
memory: 38004kb

input:

5
1 4
3 4
4 5
2 5

output:

3 1
4 1
3 5
3 2

result:

ok AC

Test #6:

score: -100
Wrong Answer
time: 2ms
memory: 36452kb

input:

5
5 2
1 2
4 2
3 4

output:

3 5
3 1
3 2
4 2

result:

wrong answer u and v already exists