C++ Vector Search: Find Elements Efficiently

1 year ago
Sophia Anderson
1 minute

To find a specific element using a vector, you can use the std::find function. The specific steps are as follows:

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

int main() {
    std::vector<int> vec = {1, 2, 3, 4, 5};

    int target = 3;

    auto it = std::find(vec.begin(), vec.end(), target);

    if (it != vec.end()) {
        std::cout << "Element found at index: " << std::distance(vec.begin(), it) << std::endl;
    } else {
        std::cout << "Element not found" << std::endl;
    }

    return 0;
}

In the code above, we defined a vector and checked if it contains an element with a value of 3. By using the std::find function, we can search for a specified element in the vector and return its iterator. If the element is found, the index position of the element is outputted, if not, “Element not found” is outputted.

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