add Sum Of All Odd Length Subarrays solution

Algorithms/Easy/1588_SumOfAllOddLengthSubarrays/Solution.cs

@@ -0,0 +1,15 @@
+public class Solution {
+ public int SumOddLengthSubarrays(int[] arr) {
+ int sum = 0;
+
+ int l = arr.Length;
+
+ for (int i = 0; i < l; i++) 
+ for (int j = i; j < l; j += 2) 
+ for (int k = i; k <= j; k++) 
+ sum += arr[k];
+
+ return sum; 
+
+ }
+}

Algorithms/Easy/1588_SumOfAllOddLengthSubarrays/solution.py

@@ -0,0 +1,20 @@
+
+from typing import List
+
+
+class Solution:
+ def sumOddLengthSubarrays(self, arr: List[int]) -> int:
+ result = 0
+ array_size = len(arr)
+
+ for i in range(array_size):
+ j = i
+ while j < array_size:
+ k = i
+ while k <= j:
+ result = result + arr[k]
+ k += 1
+ j += 2
+
+ return result
+