ProDeveloperTutorialonDecember 25, 2024 Check if the given board is valid Sudoku or not explanation with solution in CPP Determine if a 9×9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: 1. Each row must… Discover More
ProDeveloperTutorialonDecember 25, 2024 Pascal’s triangle 2 Before solving this, have a look at similar problem “pascal’s triangle”. Given a non-negative integer numRows, generate the first numRows of… Discover More
ProDeveloperTutorialonDecember 25, 2024 Given a non-negative integer numRows, generate the first numRows of Pascal’s triangle. n Pascal’s triangle, each number is the sum of the two numbers directly above it. Example: Input: 5 Output: [ [1], [1,1], [1,2,1],… Discover More
ProDeveloperTutorialonDecember 25, 2024 Insert Interval Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary). You may assume that the intervals… Discover More
ProDeveloperTutorialonDecember 25, 2024 Restore IP Addresses Given a string containing only digits, restore it by returning all possible valid IP address combinations. Example: Input:… Discover More
ProDeveloperTutorialonDecember 25, 2024 Reverse a linked list from position m to n. Do it in one-pass. Note: 1 ≤ m ≤ n ≤ length of list. Example: Input: 1->2->3->4->5->NULL, m = 2, n = 4 Output: 1->4->3->2->5->NULL… Discover More
ProDeveloperTutorialonDecember 25, 2024 Decode Ways A message containing letters from A-Z is being encoded to numbers using the following mapping: ‘A’ -> 1 ‘B’ -> 2… Discover More
ProDeveloperTutorialonDecember 25, 2024 check if the given string is valid or not explanation with solution Validate if a given string is numeric. Some examples: “0” => true ” 0.1 ” => true “abc” => false… Discover More
ProDeveloperTutorialonDecember 25, 2024 Subsets II in CPP Given a collection of integers that might contain duplicates, nums, return all possible subsets (the power set). Note: The solution set must… Discover More
ProDeveloperTutorialonDecember 25, 2024 The gray code is a binary numeral system where two successive values differ in only one bit. Given a non-negative integer n representing the total number of bits in the code, print the sequence of gray code. A gray code sequence must… Discover More