题解 | #压缩二维码#
压缩二维码
https://www.nowcoder.com/practice/1150d36c2cd64df9bf373988486c6723
import java.io.*; import java.util.*; import java.math.BigInteger; public class Main { static void solve() { int m = in.nextInt(); int n = (int)Math.pow(2,m); int ans = 0, cnt = 0; for(int i=0;i<n;i++) { String s = in.next(); for(int j=0;j<s.length();j++) { if(s.charAt(j)=='#') { ans += Math.pow(2,3-cnt); } cnt++; if(cnt==4) { out.print(ans+" "); ans = 0; cnt = 0; } } } } public static void main(String[] args) { solve(); out.flush(); } static FastReader in = new FastReader(); static PrintWriter out = new PrintWriter(System.out); static class FastReader { static BufferedReader br; static StringTokenizer st; FastReader() { br = new BufferedReader(new InputStreamReader(System.in)); } String next() { String str = ""; while(st==null||!st.hasMoreElements()) { try { str = br.readLine(); }catch(IOException e) { throw new RuntimeException(e); } st = new StringTokenizer(str); } return st.nextToken(); } int nextInt() { return Integer.parseInt(next()); } double nextDouble() { return Double.parseDouble(next()); } long nextLong() { return Long.parseLong(next()); } } }