void main(){
     char choice[6], *name[30], ch;
     int num, count=0, *refNumber[4];
     int insert(char *name[],int *refNumber[],int);
     count=insert(name,refNumber,count);
    }

int insert(char *name[],int *refNumber[],int count){
    int i, temp3[4];
    char temp[30],choice[5];
    printf("\nDo you want to enter client data?\n");
    fflush(stdin);
    scanf("%[^\n]", choice);
    for(i=0;choice[i]!='\0';i++){
       choice [i] = toupper(choice[i]);
      }
    while((!(strcmp(choice,"YES")==0) && !(strcmp(choice,"NO") == 0))){
       printf("\nInvalid option!\t \"yes\" or \"no\"\n");
       fflush (stdin);
       scanf("%[^\n]", choice);
       for(i=0;choice[i]!='\0';i++){
          choice [i] = toupper(choice[i]);
         }
      }
    while(strcmp(choice, "YES") ==0){
       fflush(stdin);
       printf("\nEnter Client Name:\n");
       fflush(stdin);
       scanf("%[^\n]", temp);
       name[count] = (char *) malloc (strlen(temp) + 1);
       strcpy (name[count], temp);

    printf("\nEnter 4 Digit Reference Number:\n");
    scanf("%d",&temp3[count]);
    while(temp3[count]<1000||temp3[count]>9999){
       printf("\nInvalid Option!");
       printf("\nEnter 4 Digit Reference Number:\n");
       scanf("%d",&temp3[count]);
      }
    refNumber[count]=temp3[count];

       count++;
       printf("\nDo you want to enter data for another client?\n");
       fflush(stdin);
       scanf("%[^\n]", choice);
       for(i=0;choice[i]!='\0';i++){
          choice [i] = toupper(choice[i]);
         }
       while((!(strcmp(choice,"YES")==0) && !(strcmp(choice,"NO") == 0))){
          printf("\nInvalid option!\t \"yes\" or \"no\"\n");
          fflush (stdin);
          scanf("%[^\n]", choice);
          for(i=0;choice[i]!='\0';i++){
             choice [i] = toupper(choice[i]);
            }
         }
      }
    return count;
   }