View Compilation Error

880308_0_0_10794.cpp: In function `int main()':
880308_0_0_10794.cpp:8: error: `scanf' undeclared (first use this function)
880308_0_0_10794.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
880308_0_0_10794.cpp:8: error: `EOF' undeclared (first use this function)
880308_0_0_10794.cpp:20: error: `printf' undeclared (first use this function)