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replace() Function in C++

This C++ program demonstrates the replace() algorithm. The replace() function takes four arguments – iterator to the beginning of the container, iterator to the end of the container, element to be replaced, and the element to be replaced with.

Here is the source code of the C++ program which demonstrates the replace() 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 replace() algorithm

```
 */
```
```
#include <iostream>
```
```
#include <vector>
```
```
#include <algorithm>
```
```
using namespace std;
```
```
 
```
```
void print(vector<int>& v)
```
```
{
```
```
    for(int i = 0; i < v.size(); i++)
```
```
        cout << v[i] << " ";
```
```
    cout << endl;
```
```
}
```
```
 
```
```
int main() {
```

    vector<int> v = {1, 4, 3, 2, 3, 10, 7, 9, 3, 8};

```
 
```
```
    cout << "v : ";
```
```
    print(v);
```
```
    // replace 3 with 6
```
```
    replace(v.begin(), v.end(), 3, 6);
```

    cout << "After replacing 3 with 6\n";

```
    cout << "v : ";
```
```
    print(v);
```
```
}
```

$ gcc test.cpp
$ a.out
v : 1 4 3 2 3 10 7 9 3 8 
After replacing 3 with 6
v : 1 4 6 2 6 10 7 9 6 8

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replace() Function in C++

replace() Function in C++

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