Java: Count 1’s in a Sorted Binary Array

Level : Intermediate
Mentor: Shailendra Chauhan
Type : GuidedLab
Points : 10
Duration : 00:20:00

Lab Details

Difficulty Level: EASY

Problem Statement:

Given a binary array arr[] of size N, which is sorted in non-increasing order, count the number of 1’s in it.

Input:

arr[] = {1, 1, 1, 1, 0, 0, 0}

Output:

4


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