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  1. #include <iostream>
  2. #include <cstdlib>
  3. #include <ctime>
  4.  
  5. using namespace std;
  6.  
  7. int main() {
  8.     srand(time(0));
  9.  
  10.     while (true) {
  11.         int a = rand() % 10 + 1;
  12.         int b = rand() % 10 + 1;
  13.  
  14.         char operation;
  15.  
  16.         if (rand() % 2 == 0) {
  17.             operation = '+';
  18.         } else {
  19.             operation = '-';
  20.         }
  21.  
  22.         // Make sure subtraction does not give a negative answer
  23.         if (operation == '-' && a < b) {
  24.             swap(a, b);
  25.         }
  26.  
  27.         int correctAnswer;
  28.  
  29.         if (operation == '+') {
  30.             correctAnswer = a + b;
  31.         } else {
  32.             correctAnswer = a - b;
  33.         }
  34.  
  35.         int answer;
  36.  
  37.         cout << a << " " << operation << " " << b << " = ";
  38.         cin >> answer;
  39.  
  40.         if (answer == correctAnswer) {
  41.             cout << "Correct! Great job! 😊" << endl;
  42.             cout << endl;
  43.         } else {
  44.             cout << "Wrong answer! Game Over. ❌" << endl;
  45.             cout << "The correct answer was: " << correctAnswer << endl;
  46.             break;
  47.         }
  48.     }
  49.  
  50.     return 0;
  51. }
Success #stdin #stdout 0s 5328KB
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Standard input is empty
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1 + 4 = Wrong answer! Game Over. ❌
The correct answer was: 5
https://ideone.com/y98PGO
language:
C++14 (gcc 8.3)
created:
8 hours ago
visibility:
public

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