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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5.     int a;
  6.     float x;
  7.     float y;
  8.  
  9.     printf("calculator by 4308\n");
  10.     printf("choose the operation:\n1 - sum\n2 - minus\n3 - multiply\n4 - division");
  11.     scanf("%d", &a);
  12.     printf("\nEnter first number: \n");
  13.     scanf("%f", &x);
  14.     printf("Enter second number: \n");
  15.     scanf("%f", &y);
  16.     if (a == 1){
  17.         printf("Your result is: %.2f", x+y);
  18.     }
  19.     else if (a == 2){
  20.         printf("Your result is: %.2f", x-y);
  21.     }
  22.     else if (a == 3){
  23.         printf("Yor result is: %.2f", x*y);
  24.     }
  25.     else if (a == 4){
  26.         if(y != 0){
  27.             printf("Your result is: %.2f", x/y);
  28.         }
  29.         else{
  30.             printf("Error division by zero");
  31.         }
  32.     }
  33.     else{
  34.         printf ("You write invalid choose");
  35.     }
  36.     return 0;
  37. }
Success #stdin #stdout 0s 5312KB
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calculator by 4308
choose the operation:
1 - sum
2 - minus
3 - multiply
4 - division
Enter first number: 
Enter second number: 
Your result is: 5.00
https://ideone.com/aKsOvl
language:
C (gcc 8.3)
created:
10 hours ago
visibility:
public

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