LV. 1 :: 내적

https://school.programmers.co.kr/learn/courses/30/lessons/70128

프로그래머스

 

function solution(a, b) 
{
    var answer = 0;
    for (i=0; i<a.length; i++)
        {
            answer += a[i]*b[i];
        }
    return answer;
}

+230916 C++

#include <string>
#include <vector>

using namespace std;

int solution(vector<int> a, vector<int> b) {
    int answer = 0;
    for (int i = 0; i<a.size(); i++){
        answer += a[i]*b[i];
    }
    return answer;
}