cf/mirror

Twice

CF
2037A800· newbie1s256 MB⌨ stdin/stdout
#implementation

Examples

Sample 1of 1multi-test • hover to link
Input
5
1
1
2
2 2
2
1 2
4
1 2 3 1
6
1 2 3 1 2 3
Output
0
1
0
1
3
2037A.cpp
loading editor…
Ln 11·137 BGNU C++20 (64)