Main.cc:1:1: error: ‘include’ does not name a type; did you mean ‘__has_include’? include using namespace std; ^~~~~~~ __has_include Main.cc: In function ‘int main()’: Main.cc:3:72: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] int main() { unsigned long long F[75]; F[0]=0; F[1]=1; F[2]=2; F[3]=4; for(int i=4; i<=73; i+=1) ^~~ Main.cc:5:28: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’ F[i]=F[i-3]+F[i-2]+F[i-1]; for(int n; scanf("%d",&n)!=EOF;) ^~~ Main.cc:5:39: error: ‘scanf’ was not declared in this scope F[i]=F[i-3]+F[i-2]+F[i-1]; for(int n; scanf("%d",&n)!=EOF;) ^~~~~ Main.cc:5:55: error: ‘EOF’ was not declared in this scope F[i]=F[i-3]+F[i-2]+F[i-1]; for(int n; scanf("%d",&n)!=EOF;) ^~~ Main.cc:7:1: error: ‘printf’ was not declared in this scope printf("%llu\n",F[n]); return 0; } ^~~~~~ Main.cc:7:1: note: suggested alternative: ‘int’ printf("%llu\n",F[n]); return 0; } ^~~~~~ int Main.cc:5:28: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] F[i]=F[i-3]+F[i-2]+F[i-1]; for(int n; scanf("%d",&n)!=EOF;) ^~~ Main.cc:7:24: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’ printf("%llu\n",F[n]); return 0; } ^~~~~~