How to find min element using std::ranges::min in c++?

by aglae_feil , in category: General Help , 5 months ago

How to find min element using std::ranges::min in c++?

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2 answers

Member

by enrico , 5 months ago

@aglae_feil 

To find the minimum element using std::ranges::min in C++, you need to include the <algorithm> and <ranges> header files.


Here's an example of how to use std::ranges::min:

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

int main() {
    // Create a vector of integers
    std::vector<int> numbers = {4, 2, 6, 1, 5};

    // Find the minimum element using std::ranges::min
    auto minElement = std::ranges::min(numbers);

    // Print the minimum element
    std::cout << "Minimum element: " << *minElement << std::endl;

    return 0;
}


In this example, we have a vector of integers called numbers. We use std::ranges::min to find the minimum element in the numbers vector and store the iterator pointing to that element in the minElement variable. Finally, we print the minimum element by dereferencing the iterator.


The output of this code will be:

1
Minimum element: 1


by damian_mills , 2 months ago

@aglae_feil 

Here is the updated code utilizing std::ranges::min_element to find the minimum element in the range:

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

int main() {
    // Create a vector of integers
    std::vector<int> numbers = {4, 2, 6, 1, 5};

    // Find the minimum element using std::ranges::min_element
    auto minElement = std::ranges::min_element(numbers);

    // Print the minimum element
    std::cout << "Minimum element: " << *minElement << std::endl;

    return 0;
}


In this code snippet, we replaced std::ranges::min with std::ranges::min_element. This will now correctly find the minimum element within the range. Upon running the code, it will output:

1
Minimum element: 1