#538. Pku1777 Vivian
Pku1777 Vivian
Background
Special for beginners, ^_^
Description
Format
Input
Output
Samples
1
2
3
234
NO
2
Limitation
1s, 1024KiB for each test case.
Special for beginners, ^_^
1
2
3
234
NO
2
1s, 1024KiB for each test case.