cf/mirror

Beautiful Rectangle

CF
1276C2300· international master1s256 MB⌨ stdin/stdout
#brute force#combinatorics#constructive algorithms#data structures#greedy#math

Examples

Sample 1of 2
Input
12
3 1 4 1 5 9 2 6 5 3 5 8
Output
12
3 4
1 2 3 5
3 1 5 4
5 6 8 9
Sample 2of 2
Input
5
1 1 1 1 1
Output
1
1 1
1
1276C.cpp
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Ln 11·137 BGNU C++20 (64)