Main.cc: In function ‘int main()’: Main.cc:4:11: error: unable to find string literal operator ‘operator""a’ with ‘const char [9]’, ‘long unsigned int’ arguments scanf("%d %d %d"a,b,c); ^~~~~~~~~~~ Main.cc:7:5: error: expected ‘;’ before ‘return’ return 0; ^~~~~~ Main.cc:7:13: warning: statement has no effect [-Wunused-value] return 0; ^ Main.cc:3:19: warning: unused variable ‘f’ [-Wunused-variable] int a,b,c,d,e,f; ^