Category: c / c++

Given an array with n objects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in the order red, …

Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array , the contiguous subarray has the largest …

Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that at least one duplicate number must exist. Assume that …

We have talked about the Pre-order in this post, and In-order Traversal for binary tree in this post. And this article talks about the third kind: Postorder traversal, which …

Return the preorder traversal of a binary tree’s nodes’ values. The pre-order displays the root/current node’s value first, then recursively calling into its left sub tree and right sub …