View Compilation Error

F:	emp9924932.104988Main.cc: In function 'int main()':
F:	emp9924932.104988Main.cc:7: error: 'scanf' was not declared in this scope
F:	emp9924932.104988Main.cc:13: error: 'printf' was not declared in this scope
F:	emp9924932.104988Main.cc:15: error: 'printf' was not declared in this scope
F:	emp9924932.104988Main.cc:24: error: 'printf' was not declared in this scope
F:	emp9924932.104988Main.cc:29: error: 'printf' was not declared in this scope