How to Shuffle a Vector in C++

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How to Shuffle a Vector in C++ ?

Answer

To shuffle a vector in C++, you can use the `shuffle` function from the `` header along with a random number generator.

✐ Examples

1 Shuffle a Vector of Integers

In this example,

We create a vector named intVector containing integers.
We include the necessary header files including <vector> for vectors and <algorithm> for the shuffle function.
We use the shuffle function along with a random number generator to shuffle the elements of the vector.

C++ Program

#include <iostream>
#include <vector>
#include <algorithm>
#include <random>

int main() {
    std::vector<int> intVector = {1, 2, 3, 4, 5};
    std::random_device rd;
    std::mt19937 g(rd());
    std::shuffle(intVector.begin(), intVector.end(), g);
    for (int i : intVector) {
        std::cout << i << " ";
    }
    return 0;
}

Output

Output varies due to randomness.

2 Shuffle a Vector of Characters

In this example,

We create a vector named charVector containing characters.
We include the necessary header files including <vector> for vectors and <algorithm> for the shuffle function.
We use the shuffle function along with a random number generator to shuffle the elements of the vector.

C++ Program

#include <iostream>
#include <vector>
#include <algorithm>
#include <random>

int main() {
    std::vector<char> charVector = {'a', 'b', 'c', 'd', 'e'};
    std::random_device rd;
    std::mt19937 g(rd());
    std::shuffle(charVector.begin(), charVector.end(), g);
    for (char c : charVector) {
        std::cout << c << " ";
    }
    return 0;
}

Output

Output varies due to randomness.

Summary

In this tutorial, we learned How to Shuffle a Vector in C++ language with well detailed examples.

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How to Shuffle a Vector in C++

How to Shuffle a Vector in C++ ?

Answer

✐ Examples

1 Shuffle a Vector of Integers

C++ Program

Output

2 Shuffle a Vector of Characters

C++ Program

Output

Summary

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