https://leetcode.com/problems/sum-of-all-odd-length-subarrays/


Runtime: 153 ms, faster than 10.00% of TypeScript online submissions for Sum of All Odd Length Subarrays.

Memory Usage: 48.9 MB, less than 31.43% of TypeScript online submissions for Sum of All Odd Length Subarrays.


```typescript
function sumOddLengthSubarrays(arr: number[]): number {
    //8:22
    let theNumber = 0
    for (let a=0; a < arr.length; ++a) {
        for (let b=0; b < arr.length; ++b) {
            const subArray = arr.slice(a,b+1)
            if (subArray.length > 0) {
                if (subArray.length % 2 == 1) {
                    const sum = subArray.reduce((partialSum, a) => partialSum + a, 0);
                    theNumber += sum
                }
            }
        }
    }
    return theNumber
    //8:26
};
```