Stairs
1553I3400· legendary gm10s1024 MB⌨ stdin/stdout
Examples
Sample 1of 5
Input
63 3 3 1 1 1
Output
6
Sample 2of 5
Input
74 4 4 4 3 3 3
Output
6
Sample 3of 5
Input
11
Output
1
Sample 4of 5
Input
82 2 2 2 2 2 1 1
Output
370
Sample 5of 5
Input
43 2 3 1
Output
0
58%
1553I.cpp
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Ln 11·137 BGNU C++20 (64)