Main.cc:1:1: error: ‘include’ does not name a type; did you mean ‘__has_include’? include ^~~~~~~ __has_include Main.cc: In function ‘int main()’: Main.cc:13:16: error: ‘scanf’ was not declared in this scope for(int n; scanf("%d",&n)!=EOF;) ^~~~~ Main.cc:13:32: error: ‘EOF’ was not declared in this scope for(int n; scanf("%d",&n)!=EOF;) ^~~ Main.cc:15:3: error: ‘printf’ was not declared in this scope printf("%llu\n",F[n]); ^~~~~~ Main.cc:15:3: note: suggested alternative: ‘int’ printf("%llu\n",F[n]); ^~~~~~ int