View Compilation Error

433605_0_0_30650.cpp: In function `int main()':
433605_0_0_30650.cpp:6: error: `scanf' undeclared (first use this function)
433605_0_0_30650.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
433605_0_0_30650.cpp:12: error: `printf' undeclared (first use this function)