View Compilation Error

110522_0_27982.cpp:1:17: stdio : No such file or directory
110522_0_27982.cpp: In function `int main()':
110522_0_27982.cpp:21: error: `scanf' undeclared (first use this function)
110522_0_27982.cpp:21: error: (Each undeclared identifier is reported only once for each function it appears in.)
110522_0_27982.cpp:23: error: `printf' undeclared (first use this function)