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CF
1799G2600· international gm1s256 MB⌨ stdin/stdout
#combinatorics#dp#math

Examples

Sample 1of 3
Input
3
1 1 1
1 2 3
Output
2
Sample 2of 3
Input
5
2 0 1 0 2
1 2 3 4 5
Output
10
Sample 3of 3
Input
5
1 2 2 0 0
3 5 4 3 4
Output
5
1799G.cpp
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Ln 11·137 BGNU C++20 (64)