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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. int main() {
  6.  
  7. 	int distance[5][5] = {
  8. 		{0,   343, 294, 346, 348},
  9.         {343, 0,   573, 659, 442},
  10.         {294, 573, 0,   99,  258},
  11.         {346, 659, 99,  0,   357},
  12.         {348, 442, 258, 357, 0}
  13.     };
  14.  
  15.     string cityA, cityB;
  16.     int indexA = -1, indexB = -1;
  17.  
  18.     cout << "Available cities:\n";
  19.     cout << "Warszawa, Gdansk, Krakow, NowySacz, Wroclaw\n";
  20.     cout << "\nEnter first city: ";
  21.     cin >> cityA;
  22.  
  23.     cout << "Enter second city: ";
  24.     cin >> cityB;
  25.  
  26.     if (cityA == "Warszawa") indexA = 0;
  27.     else if (cityA == "Gdansk") indexA = 1;
  28.     else if (cityA == "Krakow") indexA = 2;
  29.     else if (cityA == "NowySacz") indexA = 3;
  30.     else if (cityA == "Wroclaw") indexA = 4;
  31.  
  32.     if (cityB == "Warszawa") indexB = 0;
  33.     else if (cityB == "Gdansk") indexB = 1;
  34.     else if (cityB == "Krakow") indexB = 2;
  35.     else if (cityB == "NowySacz") indexB = 3;
  36.     else if (cityB == "Wroclaw") indexB = 4;
  37.  
  38.     if (indexA == -1 || indexB == -1) {
  39.     	cout << "Unknown city name!\n";
  40.     } else {
  41.     	cout << "Distance between " << cityA << " and " << cityB << " is " << distance[indexA][indexB] << " km\n";
  42.     }
  43.  
  44. 	return 0;
  45. }
Success #stdin #stdout 0s 5312KB
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stdin
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Standard input is empty
stdout
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Available cities:
Warszawa, Gdansk, Krakow, NowySacz, Wroclaw

Enter first city: Enter second city: Unknown city name!
https://ideone.com/KuWNgE
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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