View Compilation Error

0_0_21353212_32365.cpp:1:1: error: 'include' does not name a type
 include<stdio.h>
 ^
0_0_21353212_32365.cpp: In function 'int main()':
0_0_21353212_32365.cpp:39:24: error: 'scanf' was not declared in this scope
     while(scanf("%d",&k),k)
                        ^
0_0_21353212_32365.cpp:48:32: error: 'printf' was not declared in this scope
         printf("%d\n",hungary());   
                                ^