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  1. /* declare function Largest:                                           */
  2. /* The function takes 3 integers as parameters and returns the largest */
  3.  
  4. int Largest (int first, int second, int third);
  5.  
  6. /* now define the function */
  7.  
  8. int Largest (int first, int second, int third)
  9. {
  10.     int answer;            /* answer will be the largest we find */
  11.  
  12.     answer = first;        /* assume the first is the largest */
  13.  
  14.     if (second > answer)   /* if the second number is larger */ 
  15.         answer = second;   /* then update the answer */
  16.  
  17.     if (third > answer)    /* now look at the third number */ 
  18.         answer = third;    /* update the answer if we found a greater one */
  19.  
  20.     return answer;        /* return the answer to the caller */
  21.  
  22. }   /* main */
  23.  
  24. /* A test main to show this works */
  25.  
  26. #include <stdio.h>
  27. int main()
  28. {
  29.  
  30.     int solution;  /* temporary answer from a call */
  31.  
  32.     /* Call the function with various sets of test data */
  33.  
  34.     solution = Largest (10,20,30);            /* find the largest number */
  35.     printf ("Largest is  %i\n", solution);   /* print the answer */
  36.  
  37.     solution = Largest (5, 10, 6);            /* another test case */
  38.     printf ("Largest is  %i\n", solution);   /* print the answer */
  39.  
  40.     return 0; /* exit */
  41. }
Success #stdin #stdout 0s 5308KB
comments (?)
stdin
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10, 20, 30
stdout
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Largest is  30
Largest is  10
https://ideone.com/Nfonie
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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