View Compilation Error

96909_0_32029.cpp: In function `int main()':
96909_0_32029.cpp:4: error: `scanf' undeclared (first use this function)
96909_0_32029.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
96909_0_32029.cpp:14: error: `printf' undeclared (first use this function)