Description Implement next permutation, which rearranges numbers into th...

Description Implement strStr(). Return the index of the first occurrence...

Description Given an array and a value, remove all instances of that val...

Description Given a sorted array, remove the duplicates in-place such th...

Description Given a linked list, reverse the nodes of a linked list k at...

Description Given a linked list, swap every two adjacent nodes and retur...

Description Merge k sorted linked lists and return it as one sorted list...