Algorithms to Merge Two Sorted Array
There are two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. nums1 has enough space to hold additional elements from nums2. The number …
Category: algorithms
How to Swap Nodes in Pairs in a Singly Linked List?
Given a linked list, swap every two adjacent nodes and return its head. You may not modify the values in the list’s nodes. Only nodes itself may be changed. …
Greedy Algorithm to Compute the Largest Number
Arrange a list of non negative integers such that they form the largest number. For example, given , the largest formed number is 9534330. The result may be very …
Google Interview Question – Print Message
This is the technical phone interview question from Google. Google has offices in London but the call was from Google Switzerland (+41). The interview lasts for 45 minutes. Given …
How to Check Valid Sudoku in C/C++?
Determine if a Sudoku is valid. The Sudoku board could be partially filled, where empty cells are filled with the character ‘.’. A valid Sudoku board (partially filled) is …