Array

Reverse the array

Find the maximum and minimum element in an array

Find the Kth max and min element of an array

Given an array which consists of only 0, 1 and 2. Sort the array without using any sorting algo

Move all the negative elements to one side of the array

Find the Union and Intersection of the two sorted arrays

Write a program to cyclically rotate an array by one

Find Largest sum contiguous Subarray [V. IMP]

Minimise the maximum difference between heights [V.IMP]

Minimum no. of Jumps to reach end of an array

Find duplicate in an array of N+1 Integers

Merge 2 sorted arrays without using Extra space

Kadanes Algo [V.V.V.V.V IMP]

Merge Intervals

Next Permutation

Count Inversion

Best time to buy and Sell stock

Find all pairs on integer array whose sum is equal to given number

Find common elements In 3 sorted arrays

Rearrange the array in alternating positive and negative items with O(1) extra space

Find if there is any subarray with sum equal to 0

Find factorial of a large number

Find maximum product subarray

Find longest consecutive subsequence

Given an array of size n and a number k, find all elements that appear more than n/k times

Maximum profit by buying and selling a share atmost twice

Find whether an array is a subset of another array

Find the triplet that sum to a given value

Trapping Rain water problem

Chocolate Distribution problem

Smallest Subarray with sum greater than a given value

Three way partitioning of an array around a given value

Minimum swaps required bring elements less equal K together

Minimum no. of operations required to make an array palindrome

Median of 2 sorted arrays of equal size

Median of 2 sorted arrays of different size