View Compilation Error

0_0_36160712_31022.cpp:5:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_36160712_31022.cpp:8:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_36160712_31022.cpp:11:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_36160712_31022.cpp: In function 'int main()':
0_0_36160712_31022.cpp:19:2: error: 'cin' was not declared in this scope
  cin >> t;
  ^
0_0_36160712_31022.cpp:24:17: error: 'scanf' was not declared in this scope
   scanf("%d", &n);
                 ^
0_0_36160712_31022.cpp:27:16: error: 'sort' was not declared in this scope
   sort(a, a + n);
                ^
0_0_36160712_31022.cpp:29:22: error: 'printf' was not declared in this scope
    printf("%d ", a[j]);
                      ^
0_0_36160712_31022.cpp:30:23: error: 'printf' was not declared in this scope
   printf("%d\n",a[n-1]);
                       ^