View Compilation Error

0_0_31338939_9866.cpp: In function 'int main()':
0_0_31338939_9866.cpp:5:16: error: 'scan' was not declared in this scope
 scan("%d%*c",&n);
                ^
0_0_31338939_9866.cpp:6:6: error: 'printfj' was not declared in this scope
 for (printfj=0;j<n;j++)
      ^