View Compilation Error

0_0_19379462_26824\Main.java:1: 错误: 非法字符: '#'
#include<stdio.h>
^
0_0_19379462_26824\Main.java:1: 错误: 需要class, interface或enum
#include<stdio.h>
        ^
0_0_19379462_26824\Main.java:2: 错误: 非法字符: '#'
#include<math.h>
^
0_0_19379462_26824\Main.java:6: 错误: 需要class, interface或enum
    int n,t;
    ^
0_0_19379462_26824\Main.java:7: 错误: 需要class, interface或enum
    scanf("%d",&t);
    ^
0_0_19379462_26824\Main.java:8: 错误: 需要class, interface或enum
    while(t--)
    ^
0_0_19379462_26824\Main.java:11: 错误: 需要class, interface或enum
        s=pow(2.0,n-2)*(n+1);
        ^
0_0_19379462_26824\Main.java:12: 错误: 需要class, interface或enum
        printf("%.0lf\n",s);
        ^
0_0_19379462_26824\Main.java:13: 错误: 需要class, interface或enum
    }
    ^
0_0_19379462_26824\Main.java:15: 错误: 需要class, interface或enum
}
^
10 个错误