anagram.c

#include<stdio.h>

void main()
{

	int n,i,j;
	char a[100][100];

	scanf("%d",&n);

	for(i=0;i<=n;i++)
		gets(a[i]);

	for(i=0;i<=n;i++)
	{
		for(j=i+1;j<=n;j++)
		{
			if(check_anagram(a[i],a[j])==1)
				printf("\n%s %s",a[i],a[j]);
		}
	}
}


int check_anagram(char a[],char b[])
{

	int first[26]={0}, second[26]={0}, c=0;

	while(a[c] != '\0')
	{
		first[a[c]-'a']++;
		c++;
	}

	c = 0;

  while (b[c] != '\0')
  {
    second[b[c]-'a']++;
    c++;
  }

  // Comparing frequency of characters

  for (c = 0; c < 26; c++)
  {
    if (first[c] != second[c])
      return 0;
  }

  return 1;
}