View Compilation Error

256905_0_29472.cpp:1:20: stdafx.h: No such file or directory
256905_0_29472.cpp: In function `int main()':
256905_0_29472.cpp:15: error: `scanf' undeclared (first use this function)
256905_0_29472.cpp:15: error: (Each undeclared identifier is reported only once for each function it appears in.)
256905_0_29472.cpp:16: error: `printf' undeclared (first use this function)