[프로그래머스]Lv1 햄버거 만들기 C++

https://school.programmers.co.kr/learn/courses/30/lessons/133502?language=cpp 

프로그래머스

소스코드

#include <string>
#include <vector>

using namespace std;

int solution(vector<int> ingredient) {
	int answer = 0;

	string str;

	for (int i = 0; i < ingredient.size(); i++)
	{
		str += to_string(ingredient[i]);
	
		if (str.size() < 4)
			continue;

		string temp = str.substr(str.size()-4);

		if (temp == "1231")
		{
			answer++;
            	str=	str.substr(0, str.size()-4);
		}
	}
	return answer;
}