Searching mercurial revision by log
In mercurial you might be searching for specific revision and all you remember might be the comment you provided while committing. So in order to find it by the log message use
hg log --keyword "keyword goes here"
See how you would solve these known algorithm problems
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Check if there are three numbers a, b, c giving a total T from array A
String Ordered Permutation Algorithm Problem
Find the first occurence of number in the sorted array
Find K Complementary numbers from array Java implementation
Check if two strings are anagrams or not
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testing k complementary pairs algorithm with junit