QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#698975#5545. Contingency PlanZhaoZiLongWA 0ms3828kbC++142.7kb2024-11-01 23:29:442024-11-01 23:29:45

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3828kb

input:

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

output:

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

result:

ok AC

Test #2:

score: 0
Accepted
time: 0ms
memory: 3624kb

input:

3
1 2
2 3

output:

-1

result:

ok AC

Test #3:

score: 0
Accepted
time: 0ms
memory: 3576kb

input:

2
2 1

output:

-1

result:

ok AC

Test #4:

score: -100
Wrong Answer
time: 0ms
memory: 3632kb

input:

5
2 1
2 3
2 4
4 5

output:

1 3
2 1
4 3
5 3

result:

wrong answer u and v already exists