cf/mirror

Make a Square

CF
962C1400· specialist2s256 MB⌨ stdin/stdout
#brute force#implementation#math

Examples

Sample 1of 3
Input
8314
Output
2
Sample 2of 3
Input
625
Output
0
Sample 3of 3
Input
333
Output
-1
962C.cpp
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Ln 11·137 BGNU C++20 (64)