View Compilation Error

344212_0_9379.cpp: In function `int main()':
344212_0_9379.cpp:4: error: `scanf' undeclared (first use this function)
344212_0_9379.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
344212_0_9379.cpp:12: error: `printf' undeclared (first use this function)