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  1.  
  2.  
  3.  // ***************************************************
  4.  // Function: frequency
  5.  //
  6.  // Description: Counts the number of times a specific
  7.  //              integer appears in an array.
  8.  //
  9.  // Parameters: theArray - array of integers
  10.  //             n        - number of elements to check
  11.  //             x        - integer to search for
  12.  //
  13.  // Returns:    count - number of times x appears
  14.  //                     in the first n elements
  15.  //
  16.  // ***************************************************
  17.  
  18. int frequency(int theArray[], int n, int x)
  19. {
  20.     int count = 0; // Initialize counter to zero
  21.     int i;         // Loop index variable
  22.  
  23.     // Loop through the first n elements of the array
  24.     for (i = 0; i < n; i++)
  25.     {
  26.         // Check if the current element matches x
  27.         if (theArray[i] == x)
  28.         {
  29.             count++; // Increase count when a match is found
  30.         }
  31.     }
  32.  
  33.     // Return the total number of times x was found
  34.     return count;
  35.  
  36. } // frequency
  37.  
  38.  
  39. #include <stdio.h>
  40.  
  41. int main(void)
  42. {
  43.     int theArray[] = {5, 7, 23, 8, 23, 67, 23};
  44.     int n = 7;
  45.     int x = 23;
  46.  
  47.     printf("Frequency of %d is %d\n",
  48.            x, frequency(theArray, n, x));
  49.  
  50.     return 0;
  51. }
  52.  
  53.  
Success #stdin #stdout 0s 5316KB
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Standard input is empty
stdout
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Frequency of 23 is 3
https://ideone.com/CIe0sO
language:
C (gcc 8.3)
created:
14 hours ago
visibility:
public

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