Baekjoon, Programmers, SWEA
For much prettier algorithm. 2021.05-
C++
ios::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);Java
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
br.close();
bw.flush();
bw.close();