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problem links: leetcode, geekforgeeks. Problem Statement You are given a string num, representing a large integer. Return the largest-valued odd...
problem links: leetcode, geekforgeeks. Problem Statement Given two strings s and t, determine if they are isomorphic. Two strings s and t are...
Given the head of a singly linked list, return the middle node of the linked list. If there are two middle nodes, return the second middle...
Given a string s, sort it in decreasing order based on the frequency of the characters. The frequency of a character is the number of times it appears...
Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string...
