Important Algorithm :-

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Rankings of a word

1.Lexicographical Rank of a word in Dictionary with no character repeat.
2.Lexicographical Rank of a word in Dictionary with repeated character.

Sortings

1.QUICK SORT
2.MERGE SORT
3.SELECTION SORT
4.HEAP SORT
5.INSERTION SORT
6.COUNTING SORT
7.RADIX SORT
8.BUBBLE SORT

CONVERSIONS

1.nth base number to mth base number conversions

MATRIX EXPONENTIATION PROBLEM

1.Number appended to itself and taking its modulo