Difficulty: Medium Link: Day1 : June LeetCode Challenge Problem Description You are given an m x n binary matrix grid. An island is a group of 1‘s (representing land)…

# Tag: programming

Difficulty: Easy Link: Day 24: May Leetcode Challenge Problem Description Given a string s, return the string after replacing every uppercase letter with the same lowercase letter.…

Difficulty : Medium Link: Day 12: May Leetcode Challenge Problem Description Given the root of a binary tree, return the level order traversal of its nodes’ values. (i.e.,…

Difficulty: Medium Link: Day 17: May Leetcode Challenge Problem Description Given a list of words, each word consists of English lowercase letters. Let’s say word1 is a…

Difficulty: Medium Link: Day 13: May Leetcode Challenge Problem Description We had some 2-dimensional coordinates, like “(1, 3)” or “(2, 0.5)”. Then, we removed all commas, decimal points, and…

Difficulty: Medium Link: Leetcode 986 Problem Statement You are given two lists of closed intervals, firstList and secondList, where firstList[i] = [starti, endi] and secondList[j] = [startj, endj]. Each list of…

Difficulty: Medium Link: Day 12: May Leetcode Challenge Problem Description Given a 2D matrix matrix, handle multiple queries of the following type: Calculate the sum of the elements…

Difficulty: Easy Link: Day 2: May LeetCode Challenge Problem Description Count the number of prime numbers less than a non-negative number, n. Examples Constraints 0 <=…

Difficulty: Medium. Link: Day 6: May Leetcode Challenge Problem Description Given the head of a singly linked list where elements are sorted in ascending order, convert it to…

Difficulty: Medium Link : Day 5: May Leetcode Challenge Problem Description Given an array of non-negative integers nums, you are initially positioned at the first index…