Skip to main content
Back to problems
Leetcode
Easy
Arrays
Math
Three Consecutive Odds

Determine whether an integer array contains three odd numbers in a row.

Acceptance 100%
Start Practice
Also Available On
Other platform versions and source mappings for the same problem.

LeetCode 1550

gfg
Problem Statement

Problem

Given an integer array arr, determine whether there exists a contiguous subarray of length 3 where all three elements are odd.

Return true if such a subarray exists; otherwise return false.

The array may contain positive, negative, or zero values.

Input Format

  • An integer array arr.

Output Format

  • Return true if there are three consecutive odd numbers anywhere in the array.
  • Otherwise, return false.

Constraints

  • 1 <= arr.length
  • Elements are integers.
  • Oddness is determined by whether an integer is not divisible by 2.
Examples
Sample cases returned by the problem API.

Example 1

Input

arr = [2,6,4,1]

Output

false

Explanation

There are not three odd numbers next to each other.

Example 2

Input

arr = [1,2,34,3,4,5,7,23,12]

Output

true

Explanation

The subarray [5, 7, 23] contains three consecutive odd numbers.

Premium problem context

Unlock deeper context for this problem

Premium adds guided hints, editorial links, similar variants, discussion resources, and concept maps so you can understand why a problem matters, not just solve it once.

Guided hints
Editorial and discussion links
Concept map and variants
Sign in to unlock
Track your progress
Sign in to bookmark this problem, save notes, and manage its revision plan.
Sign in to track progress