- Find minimum moves to reach target on an infinite line
- Largest permutation after at most k swaps
- Form the smallest number using at most one swap operation
- Find Maximum number possible by doing at-most K swaps
- Match a pattern and String without using regular expressions
- Minimum number of bracket reversals needed to make an expression balanced
- Check if two given strings are isomorphic to each other
- Print all interleavings of given two strings
- Find all Possible Palindromic Substrings in a String
- Remove “b” and “ac” from a given string
- Print Concatenation of Zig-Zag String in ‘n’ Rows
- Longest Even Length Substring such that sum of first and second half is same
- Lexicographically first palindromic string
- Next higher palindromic number using the same set of digits
- Print all the palindromic permutations of given string in alphabetic order
- Print Longest substring without repeating characters
- Print all n-digit strictly increasing numbers
- Lexicographically smallest rotated sequence
- Lexicographically next greater string using same character set
- Find all combinations of k-bit numbers with n bits set
- All possible binary numbers of length n with equal sum in both halves
- Count even length binary sequences with same sum of first and second half bits
- Print all permutations in sorted order
- Find all Lexicographic Permutations of a String
- DI String Match
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