#2348 - Number of Zero-Filled Subarrays

Medium • View on LeetCode • View on GitHub

Problem Description

Given an integer array nums, return the number of subarrays filled with 0.

A subarray is a contiguous non-empty sequence of elements within an array.

Solution

/**
 * @param {number[]} nums
 * @return {number}
 */
var zeroFilledSubarray = function(nums) {
  let result = 0;
  let zeroCount = 0;

  for (const num of nums) {
    if (num === 0) {
      zeroCount++;
      result += zeroCount;
    } else {
      zeroCount = 0;
    }
  }

  return result;
};