View Compilation Error

0_0_26026568_28924\Main.java:1: 错误: 非法字符: '#'
#include<bits/stdc++.h>
^
0_0_26026568_28924\Main.java:1: 错误: 需要class, interface或enum
#include<bits/stdc++.h>
        ^
0_0_26026568_28924\Main.java:5: 错误: 需要class, interface或enum
int main()
^
0_0_26026568_28924\Main.java:7: 错误: 需要class, interface或enum
    int t;  cin>>t;
            ^
0_0_26026568_28924\Main.java:8: 错误: 需要class, interface或enum
    while(t--)
    ^
0_0_26026568_28924\Main.java:10: 错误: 需要class, interface或enum
      int n; cin>>n;
             ^
0_0_26026568_28924\Main.java:11: 错误: 需要class, interface或enum
      printf("%.0f\n",pow(2,n));
      ^
0_0_26026568_28924\Main.java:12: 错误: 需要class, interface或enum
    }
    ^
8 个错误