Step by Step solution about How to resolve the algorithm General FizzBuzz step by step in the C programming language

Explanation:

This C code implements a generic FizzBuzz program, which prints a sequence of numbers from 1 to a given maximum, replacing certain numbers based on user-provided information. The "FizzBuzz" part of the name comes from a traditional programming challenge where multiples of 3 are replaced with "Fizz" and multiples of 5 with "Buzz".

Header Inclusions:

• <stdio.h>: For input and output functions.
• <stdlib.h>: For the qsort function.

Data Structure:

struct replace_info holds information about a number to be replaced. It has two members:

• n: The number to be replaced.
• text: The string to replace the number with.

Function Declarations:

• compare: Compares two replace_info structures based on their n values.
• generic_fizz_buzz: Prints numbers from 1 to max, replacing numbers divisible by specifiers in info with the corresponding strings.

main Function:

1. Declares an array info of three replace_info structures:

   • {5, "Buzz"} replaces multiples of 5.
   • {7, "Baxx"} replaces multiples of 7.
   • {3, "Fizz"} replaces multiples of 3.

2. Sorts the info array by the n values using qsort and a custom comparison function compare.

3. Calls generic_fizz_buzz with the following arguments:

   • max: Maximum number to print.
   • info: Information about numbers to be replaced.
   • info_length: Number of elements in info.

compare Function:

• Compares two replace_info structures based on their n values.
• Returns negative if a's n is less than b's n, positive if a's n is greater, or zero if they are equal.

generic_fizz_buzz Function:

• Loops through numbers from 1 to max, excluding max.
• For each number i:
  • Initializes found_word to 0, indicating that no replacement word has been found.
  • Loops through the info array to check for matches:
    • If i is divisible by any info[it].n, it prints info[it].text and sets found_word to 1.
  • If no replacement word is found, it prints i.
  • Prints a newline.

Output:

The output of the program with the given info is as follows:

1
2
Fizz
4
Buzz
Fizz
Baxx
8
Fizz
Buzz
11
Fizz
13
Baxx
Fizz
Buzz
17
Fizz
Baxx
Fizz

#include <stdio.h>
#include <stdlib.h>

struct replace_info {
    int n;
    char *text;
};

int compare(const void *a, const void *b)
{
    struct replace_info *x = (struct replace_info *) a;
    struct replace_info *y = (struct replace_info *) b;
    return x->n - y->n;
}

void generic_fizz_buzz(int max, struct replace_info *info, int info_length)
{
    int i, it;
    int found_word;

    for (i = 1; i < max; ++i) {
        found_word = 0;

        /* Assume sorted order of values in the info array */
        for (it = 0; it < info_length; ++it) {
            if (0 == i % info[it].n) {
                printf("%s", info[it].text);
                found_word = 1;
            }
        }

        if (0 == found_word)
            printf("%d", i);

        printf("\n");
    }
}

int main(void)
{
    struct replace_info info[3] = {
        {5, "Buzz"},
        {7, "Baxx"},
        {3, "Fizz"}
    };

    /* Sort information array */
    qsort(info, 3, sizeof(struct replace_info), compare);

    /* Print output for generic FizzBuzz */
    generic_fizz_buzz(20, info, 3);
    return 0;
}