Hi I'm stuck on this very simple programme. The user is prompted to enter an equation and, if it is not in the format x + y = z I would like it to output an error message. However, if someone typed in 2 + 3 = 3 + 2, the addition 3 + 2 is automatically done and the value of 5 goes into z.

If anyone can help me, I'm very confused!

Thanks!

Code:#include <iostream> #include <string> using namespace std; int main () { cout << "Please enter an equation."<<endl; int x, y, result; string sign, equals; cin >> x >> sign >> y >> equals >> result; if ((cin.fail ()) || (sign != "+") && (sign != "-")) {cout << "Invalid Input"; return 1;} bool plus = false; if (sign == "+") plus = true; //check for addition/minus { if (plus) {if (x+y == result) cout << "Correct1"; else cout << "Incorrect1"; } else {if (x-y == result) cout << "Correct2"; else cout << "Incorrect2"; } }