Coding Blog



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Given an array of strings, return all groups of strings that are anagrams with performant time complexity.

Given a Binary Tree, find its Boundary Traversal.

Suppose there is a circle. There are n petrol pumps on that circle with constant petrol. Find a starting point where the truck can start to get through the complete circle without exhausting its petrol in between.

Find the total count of set bits for all numbers from 1 to N.

Given a number N, the task is find the number of ways to represent this number as a sum of two or more consecutive natural numbers.

Given a Directed Graph with V vertices (Numbered from 0 to V-1) and E edges, check whether it contains any cycle or not.

Given a Directed Graph with V vertices (Numbered from 0 to V-1) and E edges, check whether it contains any cycle or not.

Given the starting pixel in an image, flood fill the image only through 4-directional neighbors.

Given an equation in the form 2^i * 3^j * 5^k * 7^l , where i, j, k, l > 0 and are integers. Generate first N numbers from that equation in sorted order efficiently.