cf/mirror

Counting Orders

CF
1827A1100· newbie1s256 MB⌨ stdin/stdout
#combinatorics#math#sortings#two pointers

Examples

Sample 1of 1multi-test • hover to link
Input
5
6
9 6 8 4 5 2
4 1 5 6 3 1
3
4 3 2
3 4 9
1
2
1
3
2 3 4
1 3 3
12
2 3 7 10 23 28 29 50 69 135 420 1000
1 1 2 3 5 8 13 21 34 55 89 144
Output
32
0
1
0
13824
1827A.cpp
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Ln 11·137 BGNU C++20 (64)