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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. //  my first calculator
  5. //  gonna make more 
  6.  
  7. int main()
  8. {
  9.    char op;
  10.    int num1 = 0;
  11.    int num2 = 0;
  12.    int result = 0;
  13.    char currency[50] = "$";
  14.  
  15.    printf("Enter a number:\n");
  16.    scanf("%d", &num1);
  17.  
  18.    printf("Enter a number:\n");
  19.    scanf("%d", &num2);
  20.  
  21.    printf("enter an operator (+,*,/,-):\n");
  22.    scanf(" %c", &op);
  23.  
  24.    if (op == '+')
  25.    {
  26.       result = num1 + num2;
  27.    }
  28.    if (op == '-')
  29.    {
  30.       result = num1 - num2;
  31.    }
  32.    else if (op == '/')
  33.    {
  34.       if (num2 == 0)
  35.       {
  36.          printf("Error cannot divide by 0\n");
  37.  
  38.          return 1;
  39.       }
  40.  
  41.       result = num1 / num2;
  42.    }
  43.    if (op == '*')
  44.    {
  45.       result = num1 * num2;
  46.    }
  47.  
  48.    printf("Result:%s%d\n", currency,result);
  49.  
  50.    system("pause");
  51.  
  52.    return 0;
  53. }
  54.  
Success #stdin #stdout #stderr 0.01s 5320KB
comments (?)
stdin 
Standard input is empty
stdout 
Enter a number:
Enter a number:
enter an operator (+,*,/,-):
Result:$0
stderr 
sh: 1: pause: not found
https://ideone.com/BmSJMP
language:
C (gcc 8.3)
created:
3 hours ago
visibility:
public

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