if Statements

raindrops.h

#ifndef RAINDROPS_H
#define RAINDROPS_H

void convert(char result[], int drops);

#endif

raindrops.c

#include "raindrops.h"

#include <stdio.h>
#include <string.h>

void convert(char result[], int drops)
{
   if (drops % 3 == 0)
      strcat(result, "Pling");
   if (drops % 5 == 0)
      strcat(result, "Plang");
   if (drops % 7 == 0)
      strcat(result, "Plong");

   if (strlen(result) == 0)
      sprintf(result, "%d", drops);
}

• The first if statement checks if drops is a multiple of 3. If so, "Pling" is concatenated to result using the strcat function.
• The second if statement checks if drops is a multiple of 5. If so, "Plang" is concatenated to result using the strcat function.
• The thrd if statement checks if drops is a multiple of 7. If so, "Plong" is concatenated to result using the strcat function.

Finally, the [strlen function] checks if result is empty: if so, the [sprintf function] formats drops as string into result.