# Min Cost Climbing Stairs

Difficulty: Easy Link: Day 8: June Leetcode Challenge Problem Statement You are given an integer array cost where cost[i] is the cost of ith step on a staircase. Once you pay…

# Max Area of Island (Leetcode 695)

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)…

# Partitioning Into Minimum Number Of Deci-Binary Numbers (Leetcode 1689)

Difficulty: Medium Link: Day 26, May Leetcode Challenge Problem Description A decimal number is called deci-binary if each of its digits is either 0 or 1 without any leading zeros. For…

# Evaluate Reverse Polish Notation (Leetcode 150)

Difficulty: Medium Link: Day 25: May Leetcode Challenge Problem Description Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, and /. Each…

# To Lower Case (Leetcode 709)

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.…

# Find and Replace Pattern (Leetcode 890)

Difficulty: Medium Link: Day 21: May Leetcode Challenge Problem Description Given a list of strings words and a string pattern, return a list of words[i] that match pattern. You may return the…

# Binary Tree Level Order Traversal (Leetcode 102)

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.,…

# Minimum Moves to Equal Array Elements II (Leetcode 462)

Difficulty: Medium Link: Day 19:May Leetcode Challenge Problem Description Given an integer array nums of size n, return the minimum number of moves required to make all array elements…

# Find Duplicate File in System (Leetcode 609)

Difficulty: Medium Link: Day 18: May Leetcode Challenge Problem Description Given a list paths of directory info, including the directory path, and all the files with contents…

# Longest String Chain (Leetcode 1048)

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…