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QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#698152#5545. Contingency PlanMaMengQiWA 0ms3788kbC++172.9kb2024-11-01 17:46:212024-11-01 17:46:22

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 3620kb

input:

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

output:

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

result:

ok AC

Test #2:

score: 0
Accepted
time: 0ms
memory: 3512kb

input:

3
1 2
2 3

output:

-1

result:

ok AC

Test #3:

score: 0
Accepted
time: 0ms
memory: 3788kb

input:

2
2 1

output:

-1

result:

ok AC

Test #4:

score: -100
Wrong Answer
time: 0ms
memory: 3628kb

input:

5
2 1
2 3
2 4
4 5

output:

1 3
3 4
4 1
5 2

result:

wrong answer cycle detected