lab3-ex1

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

#define SIZE 10000

int main() {
    char arr[SIZE];
    gets(arr);
    int flags[26];
    for (int i = 0; i < 26; i++) {
        flags[i] = 0;
    }

    for (int i = 0; i < strlen(arr); i++) {
        if (flags[arr[i] - 'a'] == 0 && arr[i] != ' ') {
            printf("%c ", arr[i]);
            for (int j = 0; j < strlen(arr); j++) {
                if (arr[i] == arr[j]) {
                    printf(".");
                }
            }
            printf("\n");
            flags[arr[i] - 'a'] = 1;
        }
    }

    return 0;
}