View Compilation Error

0_0_21658837_23503.cpp:1:31: error: stray '#' in program
 <span style="font-size:18px;">#include<bits/stdc++.h>
                               ^
0_0_21658837_23503.cpp:1:1: error: expected unqualified-id before '<' token
 <span style="font-size:18px;">#include<bits/stdc++.h>
 ^
0_0_21658837_23503.cpp: In function 'int main()':
0_0_21658837_23503.cpp:14:22: error: 'scanf' was not declared in this scope
         scanf("%d",&t);
                      ^
0_0_21658837_23503.cpp:22:35: error: 'sort' was not declared in this scope
                 sort(b+1,b+n+1,cmp);
                                   ^
0_0_21658837_23503.cpp:26:53: error: 'printf' was not declared in this scope
                         if(i!=n) printf("%d ",b[j].x);
                                                     ^
0_0_21658837_23503.cpp:27:50: error: 'printf' was not declared in this scope
                         else printf("%d\n",b[j].x);
                                                  ^