Hackerrank | Magic Square
We define a magic square to be an n*n matrix of distinct positive integers from 1 to n^2 where the sum of any row, column, or diagonal of length n…
Hackerrank | Cats and a Mouse
Two cats and a mouse are at various positions on a line. You will be given their starting positions. Your task is to determine which cat will reach the mouse…
Algorithms
Data Structures and Algorithms
Hacker Rank Solutions
Interview
Interview Questions
Python
Hackerrank | Birthday Candles Problem
You are in charge of the cake for a child’s birthday. You have decided the cake will have one candle for each year of their total age. They will only…
Hackerrank | Min Max Sum of N-1 Elements
Given five positive integers, find the minimum and maximum values that can be calculated by summing exactly four of the five integers. Then print the respective minimum and maximum values…
HackerRank Problem | Staircase detail
Staircase detail This is a staircase of size n=4: Its base and height are both equal to 4 . It is drawn using # symbols and spaces. The last line…
Hackerrank | Plus Minus Problem
Given an array of integers, calculate the ratios of its elements that are positive, negative, and zero. Print the decimal value of each fraction on a new line with places…
Hackerrank Problems | Diagonal Difference
Given a square matrix, calculate the absolute difference between the sums of its diagonals. For example, the square matrix is shown below: The left-to-right diagonal =1+5+9=15. The right to left…
Hackerrank Problems | Compare the triplets
Alice and Bob each created one problem for HackerRank. A reviewer rates the two challenges, awarding points on a scale from 1 to 100 for three categories: problem clarity, originality,…
C Program to get Two Sum and Three Sum
When working with arrays, solving problems like finding two elements that sum up to a target or three elements with a specific sum is quite common. In this blog post,…