Hamming Distance Discussions | Algorithms | HackerRank
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    after reading the editorial I undertand why this problem is expert the proposed sol uses musch less memory (unimportant, my uses 100k) and is much more fast (may be 32 (or 64) times faster ?) BUT using basic C my sol runs in less than 1 sec on test case 12 (50k string) the only I have unlocked All test run whith time limit so why use a contrived solution?