View Compilation Error

0_0_13565467_9542\Main.java:1: 错误: 非法字符: '#'
#include <stdio.h>
^
0_0_13565467_9542\Main.java:1: 错误: 需要class, interface或enum
#include <stdio.h>
         ^
0_0_13565467_9542\Main.java:5: 错误: 需要class, interface或enum
    scanf("%d",&t);
    ^
0_0_13565467_9542\Main.java:6: 错误: 需要class, interface或enum
    while(t--){
    ^
0_0_13565467_9542\Main.java:8: 错误: 需要class, interface或enum
        printf("%I64d\n",1LL<<n-k);
        ^
0_0_13565467_9542\Main.java:9: 错误: 需要class, interface或enum
    }
    ^
6 个错误