#include <iostream> #include <string> #define ERROR 0 using namespace std; int main() { cout << "Distance: "; double distance; cin >> distance; cout << " Choice:
1 - mm
2 - sm
3 - dm
"; string ed[] = { " Error!
", " mm", " sm", " dm" }; auto good = true; int choice; cin >> choice; switch (choice) { case 1: distance *= 10; case 2: distance *= 10; case 3: distance *= 10; break; default: cout << ed[ERROR]; good = false; break; } if (good) cout << "Result: " << distance << ed[choice] << endl; cin.ignore(); cin.get(); }