coding challenge
Python Tricks for Competitive Programming
1. Sort List of Tuples by Second Value in Reverse Order val = val.sort(key = lambda x: x, reverse=True) print(val) Reference: Sort List of Tuples by First/Second...
[Solved] Minimum Number of Coins Required to Make Given Amount
Problem Statement: You have given a set of coins. Write a program to find the minimum number of coins required to match the given amount value. Example You have coins 1, 5,...
[Solved] Merge Overlapping Intervals in Python, C/C++ and Java
You have given a list of intervals. Write a program to merge overlapping intervals. Example Input: Given list of intervals: , , ] Output: List of intervals after merging:...
4 Important Coding Problems Based on Numbers in C
Mathematics is used everywhere ranging from application development to solving complex problems in business. When you are looking for a job, many companies not only test your...
Find an Index of Array Such that Sum of Left and Right Subarray is Equal
This is one of the questions that was asked in the competitive coding round for Morgan Stanley. Problem statement: You have given an array (list in case of Python). Find...
[Solved] Minimum Arrows Required to Burst Balloons
Problem Statement: "Minimum arrows required to burst balloons" Given an array A, where A represents the height of the balloon from the ground. You are shooting arrows from...
[Solved] Find Lexicographically Smallest and Largest Substring
Problem Statement: You are given a string (says 's'), and an integer ( says 'k'). Write a program to find the lexicographically smallest and largest substring from given...
[Solved] HourGlass with Largest sum in 2D Array in Python and Java
First of all understand the Hourglass. It is shaped as shown in the below image. There can be multiple hourglass in the 2D array (matrix). Problem Statement: Write a...
[Solved] Sort Characters by Frequency in Python String
This is one of the questions asked in the coding interview. This question looks difficult. But, Python makes it easy, if you have an understanding of basic Python...