View Compilation Error

103419_0_6617.cpp: In function `int main()':
103419_0_6617.cpp:7: error: `scanf' undeclared (first use this function)
103419_0_6617.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.)
103419_0_6617.cpp:12: error: `printf' undeclared (first use this function)