View Compilation Error

40273_0_540.cpp: In function `int main()':
40273_0_540.cpp:17: error: `scanf' undeclared (first use this function)
40273_0_540.cpp:17: error: (Each undeclared identifier is reported only once for each function it appears in.)
40273_0_540.cpp:17: error: `EOF' undeclared (first use this function)
40273_0_540.cpp:31: error: `printf' undeclared (first use this function)