please help to optimize this code, it shows your program is very slow on submitting the code.
please help me. code is given below:
#include
using namespace std;
int main()
{ char ch;
int x,y;
while (ch!=‘x’ or ch!=‘X’) {
cin >> ch;
switch(ch) {
case ‘+’: { cin >> x; cin >> y;
cout << x+y << endl;
break; }
case ‘-’: { cin >> x; cin >> y;
cout << x-y << endl;
break; }
case '’: { cin >> x; cin >> y;
cout << xy << endl;
break; }
case ‘/’: { cin >> x; cin >> y;
cout << x/y << endl;
break; }
default : { cout << “Invalid operation. Try again.” << endl;
continue;
}
}
}
return 0;
}