View Compilation Error

35280_0_3940.cpp: In function `int main()':
35280_0_3940.cpp:6: error: `printf' undeclared (first use this function)
35280_0_3940.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
35280_0_3940.cpp:7: error: `scanf' undeclared (first use this function)