swap_ranges() Function in C++

This C++ program demonstrates the swap_ranges() algorithm. The program creates two arrays of integers and swaps the elements by passing iterators to the range of elements to be swapped into the function swap_ranges.

Here is the source code of the C++ program which demonstrates the swap_ranges() algorithm. The C++ program is successfully compiled and run on a Linux system. The program output is also shown below.

```
/*
```

 * C++ program to demonstrate the swap_ranges() algorithm

```
 */
```
```
#include <iostream>
```
```
#include <vector>
```
```
#include <algorithm>
```
```
#include <iomanip>
```
```
 
```
```
void print(int v)
```
```
{
```

    std::cout << std::setw(2) << std::setfill('0')

```
              << v << "   ";
```
```
}
```
```
 
```
```
int main()
```
```
{
```

    int a[] = {11, 12, 13, 14, 15, 16, 17, 18, 19, 20};

    int b[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

```
 
```
```
    std::cout << "Array a : ";
```
```
    std::for_each(a, a + 10, print);
```
```
    std::cout << std::endl;
```
```
    std::cout << "Array b : ";
```
```
    std::for_each(b, b + 10, print);
```
```
    std::cout << std::endl;
```

    std::swap_ranges(a + 2, a + 6, b + 2);

    std::cout << "After swapping elements" << std::endl;

```
    std::cout << "Array a : ";
```
```
    std::for_each(a, a + 10, print);
```
```
    std::cout << std::endl;
```
```
    std::cout << "Array b : ";
```
```
    std::for_each(b, b + 10, print);
```
```
    std::cout << std::endl;
```
```
}
```

$ a.out
Array a : 11   12   13   14   15   16   17   18   19   20   
Array b : 01   02   03   04   05   06   07   08   09   10   
After swapping elements
Array a : 11   12   03   04   05   06   17   18   19   20   
Array b : 01   02   13   14   15   16   07   08   09   10

Sanfoundry Global Education & Learning Series – 1000 C++ Programs.

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