View Compilation Error

0_0_26026056_15441\Main.java:1: 错误: 非法字符: '#'
#include<bits/stdc++.h>
^
0_0_26026056_15441\Main.java:1: 错误: 需要class, interface或enum
#include<bits/stdc++.h>
        ^
0_0_26026056_15441\Main.java:3: 错误: 需要class, interface或enum
int main()
^
0_0_26026056_15441\Main.java:6: 错误: 需要class, interface或enum
    double n;
    ^
0_0_26026056_15441\Main.java:7: 错误: 需要class, interface或enum
    scanf("%d", &T);
    ^
0_0_26026056_15441\Main.java:8: 错误: 需要class, interface或enum
    while(T--)
    ^
0_0_26026056_15441\Main.java:11: 错误: 需要class, interface或enum
            printf("%.0f\n", pow(2, n));
            ^
0_0_26026056_15441\Main.java:12: 错误: 需要class, interface或enum
        }
        ^
8 个错误