cf/mirror

String Transformation

CF
946C1300· pupil1s256 MB⌨ stdin/stdout
#greedy#strings

Examples

Sample 1of 2
Input
aacceeggiikkmmooqqssuuwwyy
Output
abcdefghijklmnopqrstuvwxyz
Sample 2of 2
Input
thereisnoanswer
Output
-1
946C.cpp
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Ln 11·137 BGNU C++20 (64)