Main.cc: In function 'int main()': Main.cc:8:35: error: unable to find numeric literal operator 'operator"" i' for (short j=1;j<=(b-2i+1)/2)a{std::cout<<" ";} ^ Main.cc:8:42: error: expected ';' before ')' token for (short j=1;j<=(b-2i+1)/2)a{std::cout<<" ";} ^ Main.cc:8:43: error: 'a' was not declared in this scope for (short j=1;j<=(b-2i+1)/2)a{std::cout<<" ";} ^ Main.cc:8:44: error: expected ';' before '{' token for (short j=1;j<=(b-2i+1)/2)a{std::cout<<" ";} ^