[프로그래머스] 분수 합 구하기

https://school.programmers.co.kr/learn/courses/30/lessons/120808

프로그래머스

 

    vector<int> answer;
    
    int totalDenom = denom1 * denom2;
    int num1 = numer1 * denom2;
    int num2 = numer2 * denom1;
    
    int totalNumer = num1 + num2;
    
    int gcd = 1;
    int a = max(totalNumer, totalDenom);
    int b = min(totalNumer, totalDenom);
    
    while(b != 0) {
        int r = a % b;
        a = b;
        b = r;
    }
    
    gcd = a;
    
    answer.push_back(totalNumer / gcd);
    answer.push_back(totalDenom / gcd);
    
    return answer;