Welcome to Hazrat Ali,
Problem Solving

Welcome to Hazrat Ali, Problem Solving Website “At Hazrat Ali, we provide a platform for aspiring problem solvers and developers to sharpen their coding and algorithmic skills. Whether you’re a beginner or an advanced coder, our wide range of challenges and resources will help you grow. From mastering data structures and algorithms to participating in competitive coding contests, we offer tools and a community that supports your journey in programming. Explore our curated problems, get involved in discussions, and start Solving problems that will elevate your coding expertise. Join us today and start your problem-Solving adventure!”

Recent Articles

Jul 01, 2025 • Codeforces

Unique Bid Auction

There is a game called "Unique Bid Auction". You can read more about it here

Jul 01, 2025 • Leetcode

Binary Tree Maximum Path Sum

A path in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them

Jul 01, 2025 • Codechef

Minimum number of Flips

Chef has an array A of length N consisting of 1−1 only.

Jun 30, 2025 • Codeforces

Pizza, Pizza, Pizza

Katie, Kuro and Shiro are best friends. They have known each other since kindergarten

Jun 30, 2025 • Leetcode

Construct Binary Tree from Preorder and Inorder Traversal

Given two integer arrays preorder and inorder where preorder is the preorder traversal of a binary tree

Jun 30, 2025 • Codechef

Get Lowest Free

Chef goes to the supermarket to buy some items. Luckily there's a sale going on under which Chef gets the following offer

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