Tag: golang

Overview A linked list is given. Also, a target value is given. Partition the given linked list in such a way all values less than target values comes before all the values…

Overview An array prices is given where prices[i] represent the price of a stock on the ith day.  You can only buy and sell once. Find the max profit you can earn…

Overview There is an m*n grid. There is a robot at the position (0,0). The robot can only move in the right direction and down direction. What is the total number of…

Overview Two arrays are given. Both are sorted First array is of length m+n Second array is of n The objective is to merge these sorted arrays. The first array contains enough…

Overview Let’s say we have below number to letter mapping The objective is to count the number of possible decoding of a given digit sequence Examples Program Here is the program for…

Overview An input string is given which consists of some digits. The mapping of digits to letters is similar to that of a phone keypad So an input string is given which…

Overview The objective is to remove the middle node of the linked list. If x is the size of the linked list then the middle node is Examples Program Here is the…

Overview Given an integer array and a target number, the objective is to find the number of combinations from the integer array that sum to the target number. Each of the elements…

Overview The objective is to calculate the power of a given integer. There will be two inputs The number itself – The number can be positive as well as negative. It can…

Overview There is a 2d matrix of numbers that is given. The objective Calculate the sum of the elements of matrix inside the rectangle defined by its upper left corner (row1, col1)…