Tag: #ctci

Determine if a string has all unique characters
How to reverse a string in C
Determine whether one string is a permutation of the other
How to percent-encode strings in-place
Run-length encoding in C
How to rotate a square matrix in-place
How to remove duplicates from an unsorted linked list
How to find kth last node of a linked list
How to delete a node from the middle of a linked list
How to partition a linked list
How to check whether a linked list is a palindrome
Implementing a stack using a linked list
Implementing a queue using a linked list
A stack with minimum element
Towers of Hanoi in Haskell
Implementing a queue using two stacks
How to sort a stack using one additional stack
How to check if a binary tree is balanced
Is there a route between these two nodes in this directed graph?