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How to return an array in Java

In previous articles, we have seen how we can return a value from a method in Java. There are situations where we need to return multiple values or an array from a function. This tutorial will guide you on how to return an array in Java of various data types. …

Check Array Formation Through Concatenation Leetcode Solution

The problem Check Array Formation Through Concatenation Leetcode Solution provided us with an array of arrays. Along with that we are also given a sequence. We are then told to find if we can somehow construct the given sequence using array of arrays. We can arrange the arrays in any …

Make Two Arrays Equal by Reversing Sub-arrays Leetcode Solution

The problem Make Two Arrays Equal by Reversing Sub-arrays Leetcode Solution provides us with two arrays. One of them is a target array and the other is an input array. Using the input array, we need to make the target array. We can reverse any of the sub-array in the …

Shuffle the Array Leetcode Solution

The problem Shuffle the Array Leetcode Solution provides us with an array of length 2n. Here 2n refers that the array length is even. We are then told to shuffle the array. Here shuffling does not mean that we need to randomly shuffle the array but a specific way is …

Final Prices With a Special Discount in a Shop Leetcode Solution

The problem Final Prices With a Special Discount in a Shop Leetcode Solution states that you are given an array of prices. There is a special condition that says that you get a special discount for each of the products. You get a discount of an equivalent amount of an …

Slowest Key Leetcode Solution

The problem Slowest Key Leetcode Solution provides us with a sequence of keys that have been pressed. We are also given an array or vector of times these keys have been released. The sequence of keys is given in the form of a string. So, the problem asked us to …

3Sum Leetcode Solution

Problem Statement Given an array of n integers, are there elements a, b, c in nums such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero. Notice: that the solution set must not contain duplicate triplets. Example #1 [-1,0,1,2,-1,4] …

Get Maximum in Generated Array Leetcode Solution

The problem Get Maximum in Generated Array Leetcode Solution provided us with a single integer. With the given single integer, we need to find the maximum integer in the generated array. The array generation has some rules. Under the imposed constraints, we need to find the maximum integer that could …

Insert Interval Leetcode Solution

The problem Insert Interval Leetcode Solution provides us with a list of some intervals and one separate interval. Then we are told to insert this new interval among the list of intervals. So, the new interval might be intersecting with intervals that are already in the list, or it might …

Sum of Even Numbers After Queries

Problem Statement In this problem, we are given an array of integer and array of arrays queries. For the ith query, we will have two parameters, index and val. After each query, we add val to array[index]. We need to find the sum of all even integers in the array after …