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


int            i,j,k,l,m,n;
char           str1len,str2len;
char           array[128][128];
char           string[128];

void fun(char *, char *);

int main(int argc, char *argv[]) {
        if (argc > 2 || argc < 2) {
                fprintf(stderr, "Error:Wrong number of arguments\n");
                fprintf(stderr, "Usage is: mailmerge <inputfile> <csvfile>\n");
                exit(8);
        }

        FILE  *fp1 = fopen(argv[1], "r");

        if (fp1 < 0) {
                fprintf(stderr, "File Open Error %s\n", argv[1]);
                exit(8);
        }

        if (fp1 == NULL) {
                printf("Oops(--):->Input file empty\n");
                exit(8);
        }

        while(fgets(string,sizeof string,fp1) !=NULL) {
                strcpy(array[i],string);
                 //printf("%s\n",array[i]);
                i++;
        }
        for(k=0;k<i;k++) {
                str1len = strlen(array[k])-1; //ignoring null char
                for(l=k+1;l<i;l++) {
                        str2len = strlen(array[l])-1; //ignoring null char
                        if(str1len == str2len) {
                                fun(array[k],array[l]);
                        }
                }
                if(str1len != str2len)
                        printf("%s->Cannot find anagram match\n",array[k]);
        }
}


void fun(char *string1, char *string2)
{
        str1len = strlen(string1)-1;  //ignoring new line char
        str2len = strlen(string2)-1;  //ignoring new line char
        //printf("string 1 %s \n",string1);
        //printf("string length 1 = %d \n",str1len);
        //printf("string 2 %s \n",string2);
        //printf("string length 2 = %d \n",str2len);

        char ch1,ch2;
        char *ptr1, *ptr2;
        int count1 = 0,count2;
        int test=1;

        //Removing new line char from string1
        if( (ptr1 = strchr(string1, '\n')) != NULL)
        *ptr1 = '\0';

        //Removing new line char from string2
        if( (ptr2 = strchr(string2, '\n')) != NULL)
        *ptr2 = '\0';

        for(m=0;m<str1len;m++)
        {
                ch1 = string1[m];
                //printf("%c\n",ch1);                   //read character from a string1

                if(test == 1)
                {
                        count1++;
                        for(n=0;n<str2len;n++)
                        {
                                ch2 = string2[n];       //read character from a string2
                                 //printf("%c\n",ch2);                                                          
                                if(ch1 == ch2)
                                {
                                        //printf("yes\n");
                                        test = 1;
                                        break;
                                }
                                else
                                {
                                        //printf("sorry\n");
                                        test = 0;
                                }
                        }
                }
                else
                {
                        break;
                }
        }
        if(str1len == count1) {
                printf("%s->%s\n",string1,string2);
        }
        else {
                printf("%s->Cannot find anagram match\n",string1);
        }
}