View Compilation Error

0_0_37589954_16965\Main.java:1: 错误: 非法字符: '#'
#include<bits/stdc++.h>
^
0_0_37589954_16965\Main.java:1: 错误: 需要class, interface或enum
#include<bits/stdc++.h>
        ^
0_0_37589954_16965\Main.java:5: 错误: 需要class, interface或enum
int n,m,k;
^
0_0_37589954_16965\Main.java:7: 错误: 需要class, interface或enum
int f(int x){
^
0_0_37589954_16965\Main.java:10: 错误: 需要class, interface或enum
    }
    ^
0_0_37589954_16965\Main.java:12: 错误: 需要class, interface或enum
}
^
0_0_37589954_16965\Main.java:18: 错误: 需要class, interface或enum
        cout << f(k%49) << endl;
        ^
0_0_37589954_16965\Main.java:19: 错误: 需要class, interface或enum
    }
    ^
0_0_37589954_16965\Main.java:21: 错误: 需要class, interface或enum
}
^
9 个错误