Balanced Cargo Belt

A conveyor belt carries cargo items. A sensor records the weight difference between the left and right side of the belt for each of N items. If the sum of weight differences from the beginning of the belt up to item i is exactly zero, the belt is perfectly 'balanced' at that moment. Count how many times the belt was balanced during the processing of N items. Input Format: The first line contains an integer N. The second line contains N integers representing the (Left - Right) weight difference for each item. Output Format: A single integer representing the count of balanced moments. Example: Input: 6 1 -1 2 -2 0 5 Output: 3 (Explanation: Cumulative sums: 1, 0, 2, 0, 0, 5. The zeros occur at indices 1, 3, and 4. Total = 3.)