pangram.cc

#include <iostream>
#include <string>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>

int main() {
    std::string s;
    std::getline(std::cin, s);
    std::transform(s.begin(), s.end(), s.begin(), ::tolower);

    std::set<char> inpset{s.begin(), s.end()};
    std::vector<char> abcv('z' - 'a');
    std::iota(abcv.begin(), abcv.end(), 'a');
    std::set<char> abcset{abcv.begin(), abcv.end()};

    std::vector<char> diff;
    std::set_difference(abcset.begin(), abcset.end(), 
                        inpset.begin(), inpset.end(), 
                        std::inserter(diff, diff.begin()));
    std::cout << (diff.empty() ? "pangram" : "not pangram") << std::endl;
}

pangram.rs

use std::io;
use std::collections::HashSet;

fn main() {
    let s: String = io::stdin().read_line().ok().expect("line").as_slice().trim().to_string();

    let bs: Vec<char> = s.as_slice().chars().map(|x| x.to_lowercase()).collect();
    let st: HashSet<char> = bs.into_iter().collect();

    // How the fuck to do ASCII ranges in this fucking Rust?
    let absv: Vec<char> = "abcdefghijklmnopqrstuvwxyz".chars().collect();
    let abc: HashSet<char> = absv.into_iter().collect();

    match abc.difference(&st).next() {
      Some(_) => println!("not pangram"),
      None    => println!("pangram")
    }
}

panram.hs

import Data.Char (toLower)
import qualified Data.Set as S

bool thenb elseb cond = if cond then thenb else elseb

pangram s = S.null $ S.difference (S.fromList ['a'..'z']) (S.fromList s)
main = interact (cond "pangram" "not pangram" .  pangram . map toLower)