public static String pangrams(String s) {
        HashMap<Character,Character> alphabet = new HashMap<>();
        IntStream.rangeClosed('a', 'z').mapToObj(c -> (char)c).forEach(c -> alphabet.put(c, '0'));
        int counter = alphabet.size();
        

        for(int i = 0; i < s.length(); i++){
            char character = Character.toLowerCase(s.charAt(i));
            if(alphabet.containsKey(character) && alphabet.get(character) == '0'){
                alphabet.put(character, '1');
                counter--;
            }
        }
        
        return counter == 0 ? "pangram" : "not pangram";
    }

function pangrams(s) {
    return new Set(s.toUpperCase().split("").filter((char) => char !== " ")).size === 26 ? "pangram" : "not pangram";
}

public static string pangrams(string s)
    {
        string newString = s.ToLower();
        
        string result = "pangram";
        
        for(char letra = 'A'; letra <= 'Z'; letra++){
            if(!newString.Contains(char.ToLower(letra))) {
                result = "not "+result;
                break;
            }
        }
        
        return result;
    }

	Set<Character> chars = new HashSet<>();
        for (int i='a'; i<='z'; i++) {
            chars.add((char)i);
        }
        for (char c : s.toCharArray()) {
            if (c == ' ') continue;
            if (c >= 'A' && c <= 'Z') {
                chars.remove((char)(c+32));
            } else {
                chars.remove(c);
            }
        }
        return chars.size() == 0 ? "pangram" : "not pangram";