View Compilation Error

725262_0_0_5771.cpp: In function `int main()':
725262_0_0_5771.cpp:4: error: `scanf' undeclared (first use this function)
725262_0_0_5771.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
725262_0_0_5771.cpp:4: error: `EOF' undeclared (first use this function)
725262_0_0_5771.cpp:8: error: `printf' undeclared (first use this function)