View Compilation Error

0_0_29485938_17815.cpp: In function 'int main()':
0_0_29485938_17815.cpp:4:26: error: 'scanf' was not declared in this scope
 scanf("%c %c %c",&x,&y,&z);
                          ^
0_0_29485938_17815.cpp:7:15: error: expected ':' before ';' token
 if(y>z)y=y>z?z;y;
               ^
0_0_29485938_17815.cpp:7:15: error: expected primary-expression before ';' token
0_0_29485938_17815.cpp:8:22: error: 'printf' was not declared in this scope
 printf("%c%c%c",x,y,z);
                      ^