# LeetCode: Sum Of All Odd Length Subarrays Solution

1var sumOddLengthSubarrays = function (arr) {2 const N = arr.length3 const sum = arr => arr.reduce((acc, el) => acc + el, 0)4 let res = 05 for (let size = 1; size <= N; size += 2) {6 for (let i = 0; i < N - size + 1; i++) {7 res += sum(arr.slice(i, i + size))8 }9 }10 return res11}

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leetcode

array

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