first commit

2022-12-15 23:51:04 +07:00
commit 87d51fb251
292 changed files with 12623 additions and 0 deletions
@@ -0,0 +1,21 @@
+import java.util.Scanner;
+import java.math.BigInteger;
+
+public class Main{
+    static long gcd(long a, long b){
+        if(b==0) return a;
+        return gcd(b, a%b);
+    }
+    public static void main(String[] arg){
+        Scanner sc = new Scanner(System.in);
+        long a = sc.nextInt(), b = sc.nextInt(), c = sc.nextInt(), d = sc.nextInt();
+        long u1 = gcd(a,b), u2 = gcd(c,d);
+        a/=u1; b/=u1; c/=u2; d/=u2;
+        long m = b*d/gcd(b,d);
+        long t = a*(m/b) + c*(m/d);
+        long u = gcd(t,m);
+        t/=u; m/=u;
+        System.out.printf("%d/%d",t,m);
+        sc.close();
+    }
+}