How to Sort a Vector in Ascending Order in C++ - Step by Step Examples

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How to Sort a Vector in Ascending Order in C++ ?

Answer

To sort a vector in ascending order in C++, you can use the sort function available in the <algorithm> header.

✐ Examples

1 Sort a Vector in Ascending Order

In this example,

We include the necessary header: <vector>.
We create a vector named vec containing several numeric values.
We call the sort function, passing the beginning and end iterators of the vector as arguments. This function sorts the elements of the vector in ascending order.
Finally, we print the sorted vector to standard output using a range-based for loop.

C++ Program

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

int main() {
    // Step 1: Create a vector
    std::vector<int> vec = {5, 2, 8, 3, 9, 1};
    
    // Step 2: Sort the vector in ascending order
    std::sort(vec.begin(), vec.end());
    
    // Step 3: Print the sorted vector
    std::cout << "Sorted vector: ";
    for (int num : vec) {
        std::cout << num << " ";
    }
    std::cout << std::endl;
    
    return 0;
}

Output

Sorted vector: 1 2 3 5 8 9

Summary

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