How to Shuffle an Array in C++ - Step by Step Examples



How to Shuffle an Array in C++ ?

Answer

In C++, you can shuffle an array using the Fisher-Yates shuffle algorithm.



✐ Examples

1 Shuffle Array of Integers

In this example,

  1. We have an array named intArray containing integers.
  2. We apply the Fisher-Yates shuffle algorithm to intArray.
  3. We print the shuffled array to demonstrate the shuffling.

C++ Program

#include <iostream>
#include <algorithm>
#include <random>
#include <chrono>
int main() {
    int intArray[] = {1, 2, 3, 4, 5};
    int n = sizeof(intArray) / sizeof(int);
    unsigned seed = std::chrono::system_clock::now().time_since_epoch().count();
    std::shuffle(intArray, intArray + n, std::default_random_engine(seed));
    std::cout << "Shuffled Array: ";
    for (int i = 0; i < n; i++) {
        std::cout << intArray[i] << " ";
    }
    return 0;
}

Output

Shuffled Array: 4 2 1 5 3 

2 Shuffle Array of Strings

In this example,

  1. We have an array named strArray containing strings.
  2. We apply the Fisher-Yates shuffle algorithm to strArray.
  3. We print the shuffled array to demonstrate the shuffling.

C++ Program

#include <iostream>
#include <algorithm>
#include <random>
#include <chrono>
int main() {
    std::string strArray[] = {"apple", "banana", "cherry"};
    int n = sizeof(strArray) / sizeof(strArray[0]);
    unsigned seed = std::chrono::system_clock::now().time_since_epoch().count();
    std::shuffle(strArray, strArray + n, std::default_random_engine(seed));
    std::cout << "Shuffled Array: ";
    for (int i = 0; i < n; i++) {
        std::cout << strArray[i] << " ";
    }
    return 0;
}

Output

Shuffled Array: banana cherry apple 

Summary

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




More C++ Arrays Tutorials

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  2. How to Initialize an Array in C++ ?
  3. How to Access Array Elements in C++ ?
  4. How to Access Array Elements using Index in C++ ?
  5. How to get First Element in Array in C++ ?
  6. How to get Last Element in Array in C++ ?
  7. How to check if an Array is Empty in C++ ?
  8. How to check if an Array is Not Empty in C++ ?
  9. How to get Sub Array in C++ ?
  10. How to Get Array Length in C++ ?
  11. How to Iterate Over an Array in C++ ?
  12. How to Iterate Over an Array in Reverse Order in C++ ?
  13. How to get the Index of Specified Element in an Array in C++ ?
  14. How to check if Specified Element is present in the Array in C++ ?
  15. How to count the Number of Occurrences of Specified Element in the Array in C++ ?
  16. How to Sort an Array in C++ ?
  17. How to Sort an Array in Ascending Order in C++ ?
  18. How to Sort an Array in Descending Order in C++ ?
  19. How to create a Two Dimensional Array in C++ ?
  20. How to Iterate over a Two Dimensional Array in C++ ?
  21. How to create a Three Dimensional Array in C++ ?
  22. How to Copy an Array in C++ ?
  23. How to Split an Array in C++ ?
  24. How to Join Arrays in C++ ?
  25. How to check if Two Arrays are Equal in C++ ?
  26. How to check if Two Arrays have Same Elements (Regardless of Order) in C++ ?
  27. How to Convert an Array of Integers to an Array of Strings in C++ ?
  28. How to Convert an Array of Strings to an Array of Integers in C++ ?
  29. How to Reverse an Array in C++ ?
  30. How to Shuffle an Array in C++ ?
  31. How to Rotate Elements in an Array in C++ ?
  32. How to Filter Elements of an Array based on a Condition in C++ ?
  33. How to Declare an Integer Array in C++ ?
  34. How to Declare a Float Array in C++ ?
  35. How to Declare a String Array in C++ ?
  36. How to Remove Duplicates in an Array in C++ ?
  37. How to Remove Specific Element from an Array in C++ ?
  38. How to Remove Element from Array based on a Condition in C++ ?
  39. How to Sort a String Array in Dictionary Order in C++ ?
  40. How to Concatenate Strings in Array in C++ ?