#include <iostream>
#include <vector>
int main() {
// Declare a vector of integers named 'numbers'
std::vector<int> numbers = {10, 20, 30, 40, 50};
// Find the iterator pointing to the first occurrence of the value 30 in the vector
auto it = std::find(numbers.begin(), numbers.end(), 30);
// Check if the element was found
if (it != numbers.end()) {
// Calculate the index of the found element
int index = std::distance(numbers.begin(), it);
// Print the index of the found element
std::cout << "Element 30 found at index: " << index << std::endl;
} else {
// Print a message indicating that the element was not found
std::cout << "Element 30 not found in the vector." << std::endl;
}
return 0;
}