Missing Number

main.dart

void main() {
  Solution solution = Solution();
  
  // Test Case 1
  List<int> nums1 = [3, 0, 1];
  print('Test Case 1:');
  print('Input: $nums1');
  print('Expected Output: 2');
  print('Actual Output: ${solution.missingNumber(nums1)}');
  print('');
  
  // Test Case 2
  List<int> nums2 = [0, 1];
  print('Test Case 2:');
  print('Input: $nums2');
  print('Expected Output: 2');
  print('Actual Output: ${solution.missingNumber(nums2)}');
  print('');
  
  // Test Case 3
  List<int> nums3 = [9, 6, 4, 2, 3, 5, 7, 0, 1];
  print('Test Case 3:');
  print('Input: $nums3');
  print('Expected Output: 8');
  print('Actual Output: ${solution.missingNumber(nums3)}');
  print('');
  
  // Additional Test Cases
  // Edge case with single element
  List<int> nums4 = [0];
  print('Test Case 4 (Single element):');
  print('Input: $nums4');
  print('Expected Output: 1');
  print('Actual Output: ${solution.missingNumber(nums4)}');
  print('');
  
  // Edge case with missing 0
  List<int> nums5 = [1, 2];
  print('Test Case 5 (Missing zero):');
  print('Input: $nums5');
  print('Expected Output: 0');
  print('Actual Output: ${solution.missingNumber(nums5)}');
}

class Solution {
  int missingNumber(List<int> nums) {
    // TODO: Implement your solution here
    return -1; // Placeholder return
  }
}