View Compilation Error

450570_0_0_11502.cpp: In function `int main()':
450570_0_0_11502.cpp:5: error: `scanf' undeclared (first use this function)
450570_0_0_11502.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
450570_0_0_11502.cpp:5: error: `EOF' undeclared (first use this function)
450570_0_0_11502.cpp:14: error: `printf' undeclared (first use this function)