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View Compilation Error

0_0_30421100_2725\Main.java:1: 错误: 需要class, interface或enum
public static int ans=0;
              ^
0_0_30421100_2725\Main.java:2: 错误: 需要class, interface或enum
    public static int[][] result=new int[10][10];
                  ^
0_0_30421100_2725\Main.java:3: 错误: 需要class, interface或enum
    public static void dfs(int now, int end){
                  ^
0_0_30421100_2725\Main.java:4: 错误: 需要class, interface或enum
        for(int i=0;i<end;i++){
                    ^
0_0_30421100_2725\Main.java:4: 错误: 需要class, interface或enum
        for(int i=0;i<end;i++){
                          ^
0_0_30421100_2725\Main.java:9: 错误: 需要class, interface或enum
                    return;
                    ^
0_0_30421100_2725\Main.java:10: 错误: 需要class, interface或enum
                }
                ^
0_0_30421100_2725\Main.java:12: 错误: 需要class, interface或enum
                changeRight(now,i,end,1);
                ^
0_0_30421100_2725\Main.java:13: 错误: 需要class, interface或enum
                changeDown(now,i,end,1);
                ^
0_0_30421100_2725\Main.java:14: 错误: 需要class, interface或enum
                dfs(now+1,end);
                ^
0_0_30421100_2725\Main.java:15: 错误: 需要class, interface或enum
                changeLeft(now,i,end,-1);
                ^
0_0_30421100_2725\Main.java:16: 错误: 需要class, interface或enum
                changeRight(now,i,end,-1);
                ^
0_0_30421100_2725\Main.java:17: 错误: 需要class, interface或enum
                changeDown(now,i,end,-1);
                ^
0_0_30421100_2725\Main.java:18: 错误: 需要class, interface或enum
            }
            ^
0_0_30421100_2725\Main.java:24: 错误: 需要class, interface或enum
        if(row<end-1&&col<end-1){
        ^
0_0_30421100_2725\Main.java:26: 错误: 需要class, interface或enum
        }
        ^
0_0_30421100_2725\Main.java:30: 错误: 需要class, interface或enum
        if(row<end-1){
        ^
0_0_30421100_2725\Main.java:32: 错误: 需要class, interface或enum
        }
        ^
0_0_30421100_2725\Main.java:35: 错误: 需要class, interface或enum
    public static void changeLeft(int row,int col,int end,int num){
                  ^
0_0_30421100_2725\Main.java:37: 错误: 需要class, interface或enum
        if(row<end-1&&col>0){
        ^
0_0_30421100_2725\Main.java:39: 错误: 需要class, interface或enum
        }
        ^
0_0_30421100_2725\Main.java:42: 错误: 需要class, interface或enum
    public static void main(String[] args){
                  ^
0_0_30421100_2725\Main.java:43: 错误: 需要class, interface或enum
        for(int i=0;i<10;i++){
                    ^
0_0_30421100_2725\Main.java:43: 错误: 需要class, interface或enum
        for(int i=0;i<10;i++){
                         ^
0_0_30421100_2725\Main.java:44: 错误: 需要class, interface或enum
            for(int j=0;j<10;j++){
                        ^
0_0_30421100_2725\Main.java:44: 错误: 需要class, interface或enum
            for(int j=0;j<10;j++){
                             ^
0_0_30421100_2725\Main.java:46: 错误: 需要class, interface或enum
            }
            ^
0_0_30421100_2725\Main.java:50: 错误: 需要class, interface或enum
            Scanner sc=new Scanner(System.in);
            ^
0_0_30421100_2725\Main.java:51: 错误: 需要class, interface或enum
            int n=sc.nextInt();
            ^
0_0_30421100_2725\Main.java:52: 错误: 需要class, interface或enum
            dfs(0,n);
            ^
0_0_30421100_2725\Main.java:54: 错误: 需要class, interface或enum
            System.out.println(ans);
            ^
0_0_30421100_2725\Main.java:55: 错误: 需要class, interface或enum
        }
        ^
32 个错误


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