## 80. Remove Duplicates from Sorted Array II

Given an integer array of nums sorted in non-decreasing order, remove some duplicates in-place such that each unique element appears …

## Remove Duplicates from Sorted Array

In this tutorial, we will write a simple c program to remove duplicate elements from a sorted array. In order …

## Lonely Integer: Given an array of integers, where all elements but one occur twice, find the unique element.

Link to the original problem: Here

## Sparse Arrays

There is a collection of input strings and a collection of query strings. For each query string, determine how many …

## Divisible Sum Pairs

Given an array of integers and a positive integer k, determine the number of pairs (i, j) where i<j and ar[i] + …

## Camel Case 4

Camel Case is a naming style common in many programming languages. In Java, method and variable names typically start with …

## Breaking the Records: Finding Max-Min Count in C

Maria plays college basketball and wants to go pro. Each season she maintains a record of her play. She tabulates …

## HackerRank: Mini-Max Sum

Given five positive integers, find the minimum and maximum values that can be calculated by summing exactly four of the …

## Hacker Rank: Plus Minus

Given an array of integers, calculate the ratios of its elements that are positive, negative, and zero. Print the decimal value of each …