plz help me find the problem

extern char received_msg[BUFFER_SIZE];
extern char voters_id[BUFFER_SIZE];


#define BUFFER_SIZE 100


void compare_votes(void)
{
    char id1[]="v1";
    char id2[]="v2";
    unsigned int count1=0, count2=0;

    if(!strcmp(received_msg,id1))
        {count1++;}
    if(!strcmp(received_msg,id2))
        {count2++;}
    
}
void compare_id(void)
{
        int i;
        char received =0;
        for (i=0; i<=voters; i++)
        {
            if(v[i].flag==0)
                {
                if (!strcmp(voters_id,v[i].voter_ID))
                    {
                        v[i].flag=1;
                        compare_votes();
                        received =1;
                    }
                }
        if (received==1)
            break;
        }
}