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View Compilation Error

0_0_39064255_14716\Main.java:4: 错误: 需要class, interface或enum
public Class Pro {
       ^
0_0_39064255_14716\Main.java:6: 错误: 需要class, interface或enum
    public static int gcd(int a, int b) {
                  ^
0_0_39064255_14716\Main.java:9: 错误: 需要class, interface或enum
        return gcd(b, a % b);
        ^
0_0_39064255_14716\Main.java:10: 错误: 需要class, interface或enum
    }
    ^
0_0_39064255_14716\Main.java:12: 错误: 需要class, interface或enum
    public static int Scal(int a, int m, int n, int k) {
                  ^
0_0_39064255_14716\Main.java:14: 错误: 需要class, interface或enum
        int ApN = (int) Math.pow(a, n) - 1;
        ^
0_0_39064255_14716\Main.java:16: 错误: 需要class, interface或enum
        int gcdre = gcd(ApM, ApN);
        ^
0_0_39064255_14716\Main.java:17: 错误: 需要class, interface或enum
        return gcdre % k;
        ^
0_0_39064255_14716\Main.java:18: 错误: 需要class, interface或enum
    }
    ^
0_0_39064255_14716\Main.java:20: 错误: 需要class, interface或enum
    public static void main(String[] args) {
                  ^
0_0_39064255_14716\Main.java:22: 错误: 需要class, interface或enum
        int t = input.nextInt();
        ^
0_0_39064255_14716\Main.java:24: 错误: 需要class, interface或enum
        while (t-- > 0) {
        ^
0_0_39064255_14716\Main.java:26: 错误: 需要class, interface或enum
            int m = input.nextInt();
            ^
0_0_39064255_14716\Main.java:27: 错误: 需要class, interface或enum
            int n = input.nextInt();
            ^
0_0_39064255_14716\Main.java:28: 错误: 需要class, interface或enum
            int k = input.nextInt();
            ^
0_0_39064255_14716\Main.java:29: 错误: 需要class, interface或enum
            int result = Scal(a, m, n, k);
            ^
0_0_39064255_14716\Main.java:30: 错误: 需要class, interface或enum
            System.out.println(result); 
            ^
0_0_39064255_14716\Main.java:31: 错误: 需要class, interface或enum
        }
        ^
18 个错误


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