Who solved Lucky Pairs?

View solutions of several random people


CSFPython (C#) Stormblessed (Python) gardengnome (Python) Tristan Sylvain (Python) hyperbolic (Python) tzyLee (Python) robbin_b (C/C++) Alexandr Milovantsev (C/C++) ecolog_veteran (C/C++) cire (Swift) Calendulus (Python) zelevin (Python) i4kp3e (C/C++)

Notes on the problem

You should solve the problem to see these hints!

parameters 'withblanks' and 'limit' may be useful