cf/mirror

Session in BSU

CF
1027F2400· grandmaster4s256 MB⌨ stdin/stdout
#binary search#dfs and similar#dsu#graph matchings#graphs

Examples

Sample 1of 4
Input
2
1 5
1 7
Output
5
Sample 2of 4
Input
3
5 13
1 5
1 7
Output
7
Sample 3of 4
Input
3
10 40
40 80
10 80
Output
80
Sample 4of 4
Input
3
99 100
99 100
99 100
Output
-1
1027F.cpp
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Ln 11·137 BGNU C++20 (64)
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