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1735.cpp
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#include <iostream>
#include <algorithm>
#include <math.h>
using namespace std;
int GCD(int x, int y)
{
if (x < y)
swap(x, y);
if (x % y == 0)
return y;
else
return GCD(x % y, y);
}
int main() {
int a, b, c, d;
int A, B; // cout 할 수 두개
int gcd;
int m;
cin >> a >> b;
cin >> c >> d;
B = b * d;
A = a * d + b * c;
//gcd = GCD(b, d); // 1인지 1이 아닌지 검사
/*
if (gcd == 1)
{
B = b * d / gcd; // 큰 수
A = a * d + b * c;
gcd = GCD(A, B);
B = B / gcd;
A = A / gcd;
cout << A << "\n" << B << endl;
return 0;
}
else if (gcd != 1)
{
if (b < d) // a에 m 을 곱해주어야함
{
m = d / b;
B = d;
A = a * m + c;
}
else if (b >= d) // c 에 m 을 곱해주어야함
{
m = b / d;
B = b;
A = c * m + a;
}
}
*/
gcd = GCD(A, B);
A /= gcd;
B /= gcd;
cout << A << "\n" << B << endl;
return 0;
}