N/3 Repeat Number Interviewbit Solution

Problem: N/3 Repeat Number

Problem Description:

You’re given a read only array of n integers. Find out if any integer occurs more than n/3 times in the array in linear time and constant additional space.

If so, return the integer. If not, return -1.

If there are multiple solutions, return any one.

Example :

Input : [1 2 3 1 1] 
Output : 1  
1 occurs 3 times which is more than 5/3 times.

Solution:

Comments

Maximum Area of Triangle! InterviewBit Solution

Given a character matrix of size N x M in the form of a string array A of size N where A[i] denotes ith row. Each character in the matrix co

Locking Unlocking of N-ary Tree

Given an n-ary tree of resources arranged hierarchically such that the height of the tree is O(log N) where N is a total number of nodes...

Counting Triangles - InterviewBit Solution

You are given an array of N non-negative integers, A0, A1 ,…, AN-1.Considering each array element Ai as the edge length of some line segment

3 Sum Zero - InterviewBit Solution

Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives

3 Sum - InterviewBit Solution

Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target.