Question

How to multiply all the elements of a vector in C++

Answer 1

#include <iostream>
#include <vector>

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

    for (int num : vec) {
        product *= num;
    }

    std::cout << "Product of all elements: " << product << std::endl;
}



/*
run:

Product of all elements: 120

*/

 

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