Microsoft Online Assessment (OA) - String Without 3 Identical Consecutive Letters

1import java.util.Scanner;
2
3class Solution {
4    public static String filterString(String s) {
5        StringBuilder sb = new StringBuilder();
6        sb.append(s.charAt(0));
7        sb.append(s.charAt(1));
8        for (int i = 2; i < s.length(); ++i) {
9            if (s.charAt(i) != s.charAt(i - 1) || s.charAt(i) != s.charAt(i - 2)) {
10                sb.append(s.charAt(i));
11            }
12        }
13        return sb.toString();
14    }
15
16    public static void main(String[] args) {
17        Scanner scanner = new Scanner(System.in);
18        String s = scanner.nextLine();
19        scanner.close();
20        String res = filterString(s);
21        System.out.println(res);
22    }
23}
24

1function filterString(s) {
2    const res = [s.charAt(0), s.charAt(1)];
3    for (let i = 2; i < s.length; ++i) {
4        if (s.charAt(i) !== s.charAt(i - 1) || s.charAt(i) !== s.charAt(i - 2)) {
5            res.push(s[i]);
6        }
7    }
8    return res.join('');
9}
10
11function* main() {
12    const s = yield;
13    const res = filterString(s);
14    console.log(res);
15}
16
17class EOFError extends Error {}
18{
19    const gen = main();
20    const next = (line) => gen.next(line).done && process.exit();
21    let buf = '';
22    next();
23    process.stdin.setEncoding('utf8');
24    process.stdin.on('data', (data) => {
25        const lines = (buf + data).split('\n');
26        buf = lines.pop();
27        lines.forEach(next);
28    });
29    process.stdin.on('end', () => {
30        buf && next(buf);
31        gen.throw(new EOFError());
32    });
33}
34