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  1. #include<iostream>
  2.  
  3.  
  4. int main()
  5. {
  6.     while (true) {
  7.         char op;
  8.         std::cout << "Enter equation to be performed --> ";
  9.         std::cin >> op;
  10.         if (op == 'N')
  11.             break;
  12.         std::cin.unget();
  13.         int left_int, right_int, result;
  14.         std::cin >> left_int >> op>> right_int;
  15.         switch (op)
  16.         {
  17.           case '+':
  18.             result = left_int + right_int;
  19.             break;
  20.           case '-':
  21.             result = left_int - right_int;
  22.             break;
  23.           case '*':
  24.             result = left_int * right_int;
  25.             break;
  26.           case '/':
  27.             result = left_int / right_int;
  28.             break;
  29.           case '%':
  30.             result = left_int % right_int;
  31.             break;
  32.           default:
  33.             std::cout << "Unsuppoted operand: " << op;
  34.             break;
  35.         }
  36.         std::cout << result << std::endl;
  37.     }
  38. }
  39.  
Success #stdin #stdout 0s 3300KB
comments (?)
stdin
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22 + 4
N
stdout
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Enter equation to be performed --> 26
Enter equation to be performed -->
https://ideone.com/StwNZM
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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