Given an array return an integer indicating the minimum number of swap operations required to sort the array into ascending order.\n\n**Example 1:**\n```\nInput: [5, 1, 3, 2]\nOutput: 2\nExplanation: [5, 1, 3, 2] -> [2, 1, 3, 5] -> [1, 2, 3, 5]\n```\n\n**Example 2:**\n```\nInput: [1, 3, 2]\nOutput: 1\nExplanation: [1, 3, 2] -> [1, 2, 3]\n```

Given an array return an integer indicating the minimum number of swap operations required to sort the array into ascending order.\n\nExample 1:\n\nInput: [5, 1