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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5.  
  6.     double num1, num2, sum, diff, multi, divi;
  7.     char sign1 = '+', sign2 = '-', sign3 = '*', sign4 = '/';
  8.     printf("Please enter a number: ");
  9.     scanf("%lf", &num1);
  10.  
  11.     printf("Please enter another number: ");
  12.     scanf("%lf", &num2);
  13.  
  14.     sum = num1 + num2;
  15.     diff = num1 - num2;
  16.     multi = num1 * num2;
  17.     divi = num1 / num2;
  18.  
  19.     printf("%lf %c %lf = %lf\n", num1, sign1, num2, sum);
  20.     printf("%lf %c %lf = %lf\n", num1, sign2, num2, diff);
  21.     printf("%lf %c %lf = %lf\n", num1, sign3, num2, multi);
  22.     printf("%lf %c %lf = %lf\n", num1, sign4, num2, divi);
  23.  
  24.     return 0;
  25. }
Success #stdin #stdout 0s 5324KB
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stdin
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20
10
stdout
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Please enter a number: Please enter another number: 20.000000 + 10.000000 = 30.000000
20.000000 - 10.000000 = 10.000000
20.000000 * 10.000000 = 200.000000
20.000000 / 10.000000 = 2.000000
https://ideone.com/2s2jZI
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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