- Prepare
- Interview Preparation Kit
- Arrays
- Minimum Swaps 2

# Minimum Swaps 2

# Minimum Swaps 2

- Prepare
- Interview Preparation Kit
- Arrays
- Minimum Swaps 2

You are given an unordered array consisting of consecutive integers [1, 2, 3, ..., n] without any duplicates. You are allowed to swap any two elements. Find the minimum number of swaps required to sort the array in ascending order.

**Example**

Perform the following steps:

```
i arr swap (indices)
0 [7, 1, 3, 2, 4, 5, 6] swap (0,3)
1 [2, 1, 3, 7, 4, 5, 6] swap (0,1)
2 [1, 2, 3, 7, 4, 5, 6] swap (3,4)
3 [1, 2, 3, 4, 7, 5, 6] swap (4,5)
4 [1, 2, 3, 4, 5, 7, 6] swap (5,6)
5 [1, 2, 3, 4, 5, 6, 7]
```

It took swaps to sort the array.

**Function Description**

Complete the function *minimumSwaps* in the editor below.

minimumSwaps has the following parameter(s):

*int arr[n]:*an unordered array of integers

**Returns**

*int:*the minimum number of swaps to sort the array

**Input Format**

The first line contains an integer, , the size of .

The second line contains space-separated integers .

**Constraints**

**Sample Input 0**

```
4
4 3 1 2
```

**Sample Output 0**

```
3
```

**Explanation 0**

Given array

After swapping we get

After swapping we get

After swapping we get

So, we need a minimum of swaps to sort the array in ascending order.

**Sample Input 1**

```
5
2 3 4 1 5
```

**Sample Output 1**

```
3
```

**Explanation 1**

Given array

After swapping we get

After swapping we get

After swapping we get

So, we need a minimum of swaps to sort the array in ascending order.

**Sample Input 2**

```
7
1 3 5 2 4 6 7
```

**Sample Output 2**

```
3
```

**Explanation 2**

Given array

After swapping we get

After swapping we get

After swapping we get

So, we need a minimum of swaps to sort the array in ascending order.