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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int main(void)
  5. {
  6.     char ingredient[100];
  7.  
  8.     printf("Enter an ingredient: ");
  9.     fgets(ingredient, 100, stdin);
  10.  
  11.     if (strstr(ingredient, "sour cream") != NULL)
  12.     {
  13.         printf("Use yogurt instead.\n");
  14.     }
  15.     else if (strstr(ingredient, "sugar") != NULL)
  16.     {
  17.         printf("Use honey or applesauce instead.\n");
  18.     }
  19.     else if (strstr(ingredient, "butter") != NULL)
  20.     {
  21.         printf("Use margarine or yogurt instead.\n");
  22.     }
  23.     else if (strstr(ingredient, "white bread") != NULL)
  24.     {
  25.         printf("Use whole-grain bread instead.\n");
  26.     }
  27.     else if (strstr(ingredient, "flour") != NULL)
  28.     {
  29.         printf("Use rye or rice flour instead.\n");
  30.     }
  31.     else if (strstr(ingredient, "milk") != NULL)
  32.     {
  33.         printf("Use soy milk instead.\n");
  34.     }
  35.     else
  36.     {
  37.         printf("No substitution was found.\n");
  38.     }
  39.  
  40.     printf("\nAlways consult your physician before making significant changes to your diet.\n");
  41.  
  42.     return 0;
  43. }
Success #stdin #stdout 0s 5348KB
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stdin
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Standard input is empty
stdout
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Enter an ingredient: No substitution was found.

Always consult your physician before making significant changes to your diet.
https://ideone.com/zv6l3x
language:
C (gcc 8.3)
created:
2 hours ago
visibility:
public

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