Create: 2348-number-of-zero-filled-subarrays.js

javascript/2348-number-of-zero-filled-subarrays.js

@@ -0,0 +1,42 @@
+/**
+ * @param {number[]} nums
+ * @return {number}
+ */
+var zeroFilledSubarray = function (nums) {
+    // Initialize the result with the count of zeros in the array
+    let res = nums.filter((num) => num === 0).length;
+
+    // If there are no zeros, return 0
+    if (res === 0) {
+        return 0;
+    }
+
+    // Initialize the right pointer and get the length of the array
+    let r = 0;
+    let l = nums.length;
+
+    // Loop through the array
+    while (r < l) {
+        // Temporary array to hold consecutive zeros
+        let tempSubarray = [];
+
+        // While loop to collect all consecutive zeros starting from index 'r'
+        while (r < l && nums[r] === 0) {
+            tempSubarray.push(nums[r]);
+            r++;
+        }
+
+        // If the temporary subarray has more than one zero, calculate the number of subarrays
+        if (tempSubarray.length > 1) {
+            let tempCount =
+                (tempSubarray.length * (tempSubarray.length - 1)) / 2;
+            res += Math.floor(tempCount); // Add the calculated subarrays to the result
+        }
+
+        // Move the right pointer to the next element
+        r++;
+    }
+
+    // Return the total count of zero-filled subarrays
+    return res;
+};