We are given string str containing 0’s, 1’s, and 2’s only. The goal is to find all substrings of str that have equal numbers of 0’s 1’s and 2’s. If str is “12012”. Substrings with equal 0’s, 1’s, and 2’s will be “120”, “201” and “012”. The count will be ... Read More

We are given with two strings str_1 and str_2 as input. The goal is to find the count of strings same as str_2 that can be constructed using letters picked from str_1 from which each character is used just once.Note − All alphabets in both are in the same case.Let ... Read More

We are given a number N as input. The goal is to find all N digit numbers that have an odd number of 0’s as digits. The number also could have preceding zeros like in case of N=3 numbers included will be 000, 011, 012….990.Let us understand with examples.Input − ... Read More

We are given a number N as input. The goal is to find all N digit numbers that have an even number of 0’s as digits. The number also could have preceding zeros like in case of N=3 numbers included will be 001, 002, 003….010….so on.Let us understand with examples.Input ... Read More

We are given an input N. The goal is to find all pairs of A, B such that 1

We are given with a string of characters and the task is to calculate the count of pairs having both the elements as vowels. As we know there are five vowels in English alphabet i.e. a, i, e, o, u and other characters are known as Consonants.Input − string str ... Read More

We are given with an array of positive integer numbers and an integer variable k. The task is to calculate the count of the number of elements in an array which is divisible by the given value k.Input − int arr[] = {4, 2, 6, 1, 3, 8, 10, 9}, ... Read More

We are given a string of characters and the task is to calculate the count of character pairs having pairs at the same distance as we have in english alphabets.Input − string str = ‘Tutorials Point’Output − Count of character pairs at same distance as in English alphabets are: 5Explanation ... Read More

We are given a number and the task is to calculate the count of numbers from the range 0 till the given number let’s say, num having exactly one set bitSet bits in a binary number is represented by 1. Whenever we calculate the binary number of an integer value ... Read More

We are given the total number of elements and the task is to calculate the total number of matrices with different orders that can be formed with the given data. A matrix has an order mxn where m are the number of rows and n are the number of columns.Input ... Read More