Lv 0. 배열의 평균값

https://school.programmers.co.kr/learn/courses/30/lessons/120817

 

#include <string>
#include <vector>

using namespace std;

double solution(vector<int> numbers) {
    double answer = 0;
    for(auto c: numbers){
        answer+=c;
    }
    answer/=numbers.size();
    return answer;
}