View Compilation Error

262798_0_10677.cpp: In function `int main()':
262798_0_10677.cpp:5: error: `scanf' undeclared (first use this function)
262798_0_10677.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
262798_0_10677.cpp:5: error: `EOF' undeclared (first use this function)
262798_0_10677.cpp:16: error: `printf' undeclared (first use this function)