Merge pull request #1619 from loczek/0724-find-pivot-index

Create: 0724-find-pivot-index.ts

Author: Ahmad-A0

Diff for: typescript/0724-find-pivot-index.ts

@@ -0,0 +1,13 @@
+function pivotIndex(nums: number[]): number {
+    let total = nums.reduce((a, b) => a + b);
+    let leftSum = 0;
+
+    for (let i = 0; i < nums.length; i++) {
+        const rightSum = total - nums[i] - leftSum;
+
+        if (leftSum === rightSum) return i;
+        leftSum += nums[i];
+    }
+
+    return -1;
+}