## Arrangement of the characters of a word such that all vowels are at odd places

Given a string ‘S’ containing vowels and consonants of lowercase English alphabets. The task is to find the number of ways in which the characters… Read More »

- Print all permutations of a string in Java
- Minimize the number of replacements to get a string with same number of 'a', 'b' and 'c' in it
- Minimum number of given operations required to convert a permutation into an identity permutation
- Arrange first N natural numbers such that absolute difference between all adjacent elements > 1
- Find the good permutation of first N natural numbers
- Number of moves required to guess a permutation.
- Find the count of sub-strings whose characters can be rearranged to form the given word
- Find the number of good permutations
- Generate original array from difference between every two consecutive elements
- Lexicographically Smallest Permutation of length N such that for exactly K indices, a[i] > a[i] + 1
- Find a permutation of 2N numbers such that the result of given expression is exactly 2K
- 3-digit Osiris number
- Find a permutation such that number of indices for which gcd(p[i], i) > 1 is exactly K
- Find the permutation p from the array q such that q[i] = p[i+1] - p[i]

Given a string ‘S’ containing vowels and consonants of lowercase English alphabets. The task is to find the number of ways in which the characters… Read More »

Given an integer . The task is to find another interger which is permutation of n, divisible by 3 but not divisible by 6. Given… Read More »

Given a positive integer N and K where and . The task is to check whether any permutation of digits of N equals any power… Read More »

Given two arrays A and B of equal size. The task is to print any permutation of array A such that the number of indices… Read More »

Given two singly Linked list of integer data. The task is to write a program that efficiently checks if two linked lists are permutations of… Read More »

Given a binary string composed of 0’s and 1’s. The task is to find the number of unique permutation of the string which starts with… Read More »

Given two unsorted arrays of same size where arr[i] >= 0 for all i, the task is to check if two arrays are permutations of… Read More »

Given a string where, . Assume that all the characters in are unique. The task is to compute the minimum length of a string which… Read More »

Given N, the number of persons. The task is to arrange N person around a circular table. Examples: Input: N = 4 Output: 6 Input:… Read More »

Given a large number N and the task is to check if any permutation of a large number is divisible by 8. Examples: Input: N… Read More »

Given two numbers N and M. Construct maximal number by permuting (changing order) the digits of N, not exceeding M. Note : It is allowed… Read More »

Given a number x, find it’s palindromic selfie number according to selfie multiplicative rule. If such a number doesn’t exist, then print “No such number… Read More »

This was a pool campus conducted by amazon for internship. Online Round: There were 20 mcq(+1 for each) and 2 coding questions(+30 for each). MCQ had… Read More »

Round 1: Online Round(90 minutes) There were 20 MCQs and two coding questions. MCQs were mostly logical reasoning, running time and DS/Algo. There were also… Read More »

We need to make a string of size n. Each character of the string is either ‘R’, ‘B’ or ‘G’. In the final string there… Read More »