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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     float num1, num2, result;
  5.     char op;  
  6.  
  7.     printf("Enter first number: ");
  8.     scanf("%f", &num1);
  9.     printf("Enter second number: ");
  10.     scanf("%f", &num2);
  11.  
  12.  
  13.     printf("Choose an operation (+, -, *, /): ");
  14.     scanf(" %c", &op);
  15.  
  16.  
  17.     switch (op) {
  18.         case '+':
  19.             result = num1 + num2;
  20.             printf("Result: %.2f + %.2f = %.2f\n", num1, num2, result);
  21.             break;
  22.         case '-':
  23.             result = num1 - num2;
  24.             printf("Result: %.2f - %.2f = %.2f\n", num1, num2, result);
  25.             break;
  26.         case '*':
  27.             result = num1 * num2;
  28.             printf("Result: %.2f * %.2f = %.2f\n", num1, num2, result);
  29.             break;
  30.         case '/':
  31.             if (num2 != 0) {
  32.                 result = num1 / num2;
  33.                 printf("Result: %.2f / %.2f = %.2f\n", num1, num2, result);
  34.             } else {
  35.                 printf("Error! Division by zero.\n");
  36.             }
  37.             break;
  38.         default:
  39.             printf("Invalid operation!\n");
  40.             break;
  41.     }
  42.  
  43.     return 0;
  44. }
Success #stdin #stdout 0.01s 5284KB
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stdin
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Standard input is empty
stdout
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Enter first number: Enter second number: Choose an operation (+, -, *, /): Invalid operation!
https://ideone.com/ADATH7
language:
C (gcc 8.3)
created:
6 hours ago
visibility:
public

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