min element in vector c++

To find the minimum element in a vector in C++, you can use the std::min_element function from the <algorithm> library. Here are the steps to do so:

1. Include the necessary headers:

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

1. Declare and initialize a vector:

std::vector<int> numbers = {5, 2, 9, 1, 7};

1. Use the std::min_element function to find the minimum element in the vector:

auto minElement = std::min_element(numbers.begin(), numbers.end());

The std::min_element function returns an iterator pointing to the minimum element in the range specified by numbers.begin() and numbers.end().

1. Access the minimum element:

int minValue = *minElement;

To get the actual value of the minimum element, you need to dereference the iterator using the * operator.

1. Output the minimum element:

std::cout << "Minimum element: " << minValue << std::endl;

This will print the minimum element to the console.

Here's the complete code:

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

int main() {
    std::vector<int> numbers = {5, 2, 9, 1, 7};
    auto minElement = std::min_element(numbers.begin(), numbers.end());
    int minValue = *minElement;
    std::cout << "Minimum element: " << minValue << std::endl;
    return 0;
}

When you run this code, it will output:

Minimum element: 1

This indicates that the minimum element in the vector numbers is 1.