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Commit 5ce828b

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feat: add maxConsecutiveOnes implementation (TheAlgorithms#1285)
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/**
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* @function maxConsecutiveOnes
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* @description Given a binary array nums, return the maximum number of consecutive 1's in the array.
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* @param {number[]} nums
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* @return {number}
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* @see [Leetcode link](https://leetcode.com/problems/max-consecutive-ones/)
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*/
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export const maxConsecutiveOnes = (nums) => {
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if (!nums.length) return 0
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let result = 0
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let k = 0
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for (
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let slowPointer = 0, fastPointer = 0;
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fastPointer < nums.length;
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fastPointer++
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) {
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if (nums[fastPointer] === 0) k--
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while (k < 0) {
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if (nums[slowPointer] === 0) {
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k++
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}
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slowPointer++
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}
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result = Math.max(result, fastPointer - slowPointer + 1)
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}
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return result
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}
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import { maxConsecutiveOnes } from '../MaxConsecutiveOnes.js'
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describe('maxConsecutiveOnes', () => {
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it('expects to return 0 when argument is empty array', () => {
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expect(maxConsecutiveOnes([])).toBe(0)
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})
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it('expects to return 3', () => {
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expect(maxConsecutiveOnes([1, 1, 0, 1, 1, 1])).toBe(3)
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})
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it('expects to return 2', () => {
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expect(maxConsecutiveOnes([1, 0, 1, 1, 0, 1])).toBe(2)
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})
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it('expects to return 5', () => {
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expect(maxConsecutiveOnes([0, 1, 1, 1, 1, 1, 0, 0, 1, 0])).toBe(5)
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})
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})

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