cf/mirror

GukiZ and GukiZiana

CF
551E2500· grandmaster10s256 MB⌨ stdin/stdout
#binary search#data structures#implementation

Examples

Sample 1of 2
Input
4 3
1 2 3 4
1 1 2 1
1 1 1 1
2 3
Output
2
Sample 2of 2
Input
2 3
1 2
1 2 2 1
2 3
2 4
Output
0
-1
551E.cpp
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Ln 11·137 BGNU C++20 (64)