更新

作业/作业/刘航宇-day23/第一题/Main.java

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+import java.util.Scanner;
+
+public class Main {
+    static int gcd(int a, int b) {
+        a = Math.abs(a);
+        b = Math.abs(b);
+        while (b != 0) {
+            int t = a % b;
+            a = b;
+            b = t;
+        }
+        return a;
+    }
+
+    static long lcm(int a, int b) {
+        if (a == 0 || b == 0) return 0L;
+        int g = gcd(a, b);
+        long x = (long) a / g;
+        long y = (long) b;
+        long res = x * y;
+        if (res < 0) res = -res;
+        return res;
+    }
+
+    public static void main(String[] args) {
+        Scanner in = new Scanner(System.in);
+        int a = in.nextInt();
+        int b = in.nextInt();
+        int g = gcd(a, b);
+        long l = lcm(a, b);
+        System.out.println(g + " " + l);
+        in.close();
+    }
+}