Calculate (x^y)%z without using pow() function
Problem: Given integers x, y, and z. Write a program to calculate (x^y)%z without pow() function. Example: x = 2, y= 5, z = 3 Output: (2 ^ 5) % 3 = 2 x...
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Efficient Robot Problem – Find Minimum Trips
Problem: There is N number of items that need to be transferred from one place to another by a robot. Each item has a specific weight. The robot can carry maximum weight K in...
Find subarray with a sum to given number-2 | Handle negative numbers
Problem: Given an array (positive and negative) and an integer, find the subarray with sum is equal to the given integer. Note: This problem is an extension of – find the subarray with sum...
Sort the two dimensional (2D) array – In-place
Problem: Given a two-dimensional array where each individual row is sorted in ascending order. Your task to sort the entire 2d array in ascending order. Write an algorithm for the sorting. Example: Given Array:...
Implement/Design the version control map system
Problem: Implement the version control map system which takes the snapshot of the versions of data. Implement the following functions: put(key, value) – puts the value again the key in the latest version of...
Given an array, count the number of pairs with a given sum.
Objective: Given an array of integers, write a program to count all the pairs with the given sum. Example: Given array: [1, 5, 7, 1, -1], Sum= 6 Total Pairs: 3 Note: pairs are...
Two Sum Problem
Objective: Given an array of integers, and k. Write a program to find indexes of two elements in an array which sum is equal to K. Example: Given array: [5, 4, 7, 3, 9,...
Given an array, find all unique subsets with a given sum with allowed repeated digits.
Objective: Given an array of integers and number N, Write an algorithm to find and print all the unique subsets of array for which sum is equal to N where array elements can be...
Print all steps to convert one string to another string
Objective: Given two strings, source string and target string, which are permutation or anagram of each other. You are allowed two swap only consecutive characters. Write an algorithm to print all the steps (...
Lexicographically next permutation With One swap
Objective: Given an array of integers (in particular order or permutation of a set of numbers), write an algorithm to find the lexicographically next permutation of the given permutation with only one swap. This...
Find all subsets of size K from a given number N (1 to N)
Objective: Given two integers N and K, Write an algorithm to find subsets of size K from the numbers 1 to N. Example: N = 5 K = 3 Output: [1, 2, 3] [1,...
Find all possible combinations with sum K from a given number N(1 to N) with the repetition of numbers is allowed
Objective: Given two integers N and K, Write an algorithm to find possible combinations that add to K, from the numbers 1 to N. Condition: An integer from 1 to N can be repeated...
Stable Marriage Problem – Gale–Shapley Algorithm – Java
Stable Marriage Given N men and N women and the marriage preference order for each man and woman. Their marriage will be stable when these men and women marry in such a manner so...
Construct the largest number from the given array.
Objective: Given an array of integers, write an algorithm to construct the largest number possible by appending the array elements. Example: Given Input: [7, 78] Largest Number Possible: 787 Explanation: two possibilities are 778...
Given an array, find three-element sum closest to Zero
Objective: Given an array of integers, find the sum of any three elements which is closest to zero. The array may contain positive and negative elements. Example: Given Input: [-1, 4, -2, 5, 10,...