POJ 刷题系列：2996. Help Me with the Game

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;

public class Main{

    String INPUT = "./data/judge/201712/P2996.txt";

    public static void main(String[] args) throws IOException {
        new Main().run();
    }

    void read() {
        int row = 16;
        int col = 33;
        char[][] board = new char[row][col];
        for (int i = 0; i < row; ++i) {
            String line = ns();
            for (int j = 0; j < col; ++j) {
                board[i][j] = line.charAt(j);
            }
        }

        Map<Character, List<int[]>> white = new HashMap<Character, List<int[]>>();
        Map<Character, List<int[]>> black = new HashMap<Character, List<int[]>>();

        for (int i = row - 1; i >= 0; --i) {
            for (int j = 0; j < col; ++j) {
                if (isAlphabetic(board[i][j])){
                    if (isLowerCase(board[i][j])) {
                    }
                    else {
                        char upper = board[i][j];
                        if (!white.containsKey(upper)) white.put(upper, new ArrayList<int[]>());
                        white.get(upper).add(new int[] {8 - i / 2, j / 4});
                    }
                }
            }
        }

        for (int i =0; i < row; ++i) {
            for (int j = 0; j < col; ++j) {
                if (isAlphabetic(board[i][j])){
                    if (isLowerCase(board[i][j])) {
                        char low   = board[i][j];
                        char upper = (char) (low - 'a' + 'A');
                        if (!black.containsKey(upper)) black.put(upper, new ArrayList<int[]>());
                        black.get(upper).add(new int[] {8 - i / 2, j / 4});
                    }
                    else {
                    }
                }
            }
        }

        // answer
        out.println(format(white, "white"));
        out.println(format(black, "black"));
    }

    boolean isLowerCase(char c) {
        return c >= 'a' && c <= 'z';
    }

    boolean isAlphabetic(char c) {
        return c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z';
    }

    String format(Map<Character, List<int[]>> map, String mod) {
        StringBuilder sb = new StringBuilder();
        if (mod.equals("white")) {
            sb.append("White: ");
        }
        else {
            sb.append("Black: ");
        }

        // K
        List<int[]> pos = map.get('K');
        sb.append('K' + "" + (char)(pos.get(0)[1] + 'a') + (char)(pos.get(0)[0] + '0') + ",");

        // Q
        pos = map.get('Q');
        sb.append('Q' + "" + (char)(pos.get(0)[1] + 'a') + (char)(pos.get(0)[0] + '0') + ",");

        // R
        pos = map.get('R');
        for (int i = 0; i < pos.size(); ++i) {
            sb.append('R' + "" + (char)(pos.get(i)[1] + 'a') + (char)(pos.get(i)[0] + '0') + ",");
        }

        // B
        pos = map.get('B');
        for (int i = 0; i < pos.size(); ++i) {
            sb.append('B' + "" + (char)(pos.get(i)[1] + 'a') + (char)(pos.get(i)[0] + '0') + ",");
        }

        // N
        if (map.containsKey('N')) {
            pos = map.get('N');
            for (int i = 0; i < pos.size(); ++i) {
                sb.append('N' + "" + (char)(pos.get(i)[1] + 'a') + (char)(pos.get(i)[0] + '0') + ",");
            }
        }

        // P
        if (map.containsKey('P')) {
            pos = map.get('P');
            for (int i = 0; i < pos.size(); ++i) {
                sb.append("" + (char)(pos.get(i)[1] + 'a') + (char)(pos.get(i)[0] + '0') + (i + 1 == pos.size() ? "" : ","));
            }
        }

        return sb.toString();
    }
    FastScanner in;
    PrintWriter out;

    void run() throws IOException {
        boolean oj;
        try {
            oj = ! System.getProperty("user.dir").equals("F:\\oxygen_workspace\\Algorithm");
        } catch (Exception e) {
            oj = System.getProperty("ONLINE_JUDGE") != null;
        }

        InputStream is = oj ? System.in : new FileInputStream(new File(INPUT));
        in = new FastScanner(is);
        out = new PrintWriter(System.out);
        long s = System.currentTimeMillis();
        read();
        out.flush();
        if (!oj){
            System.out.println("[" + (System.currentTimeMillis() - s) + "ms]");
        }
    }

    public boolean more(){
        return in.hasNext();
    }

    public int ni(){
        return in.nextInt();
    }

    public long nl(){
        return in.nextLong();
    }

    public double nd(){
        return in.nextDouble();
    }

    public String ns(){
        return in.nextString();
    }

    public char nc(){
        return in.nextChar();
    }

    class FastScanner {
        BufferedReader br;
        StringTokenizer st;
        boolean hasNext;

        public FastScanner(InputStream is) throws IOException {
            br = new BufferedReader(new InputStreamReader(is));
            hasNext = true;
        }

        public String nextToken() {
            while (st == null || !st.hasMoreTokens()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (Exception e) {
                    hasNext = false;
                    return "##";
                }
            }
            return st.nextToken();
        }

        String next = null;
        public boolean hasNext(){
            next = nextToken();
            return hasNext;
        }

        public int nextInt() {
            if (next == null){
                hasNext();
            }
            String more = next;
            next = null;
            return Integer.parseInt(more);
        }

        public long nextLong() {
            if (next == null){
                hasNext();
            }
            String more = next;
            next = null;
            return Long.parseLong(more);
        }

        public double nextDouble() {
            if (next == null){
                hasNext();
            }
            String more = next;
            next = null;
            return Double.parseDouble(more);
        }

        public String nextString(){
            if (next == null){
                hasNext();
            }
            String more = next;
            next = null;
            return more;
        }

        public char nextChar(){
            if (next == null){
                hasNext();
            }
            String more = next;
            next = null;
            return more.charAt(0);
        }
    }

    static class D{

        public static void pp(int[][] board, int row, int col) {
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < row; ++i) {
                for (int j = 0; j < col; ++j) {
                    sb.append(board[i][j] + (j + 1 == col ? "\n" : " "));
                }
            }
            System.out.println(sb.toString());
        }

        public static void pp(char[][] board, int row, int col) {
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < row; ++i) {
                for (int j = 0; j < col; ++j) {
                    sb.append(board[i][j] + (j + 1 == col ? "\n" : " "));
                }
            }
            System.out.println(sb.toString());
        }
    }

    static class ArrayUtils {

        public static void fill(int[][] f, int value) {
            for (int i = 0; i < f.length; ++i) {
                Arrays.fill(f[i], value);
            }
        }

        public static void fill(int[][][] f, int value) {
            for (int i = 0; i < f.length; ++i) {
                fill(f[i], value);
            }
        }

        public static void fill(int[][][][] f, int value) {
            for (int i = 0; i < f.length; ++i) {
                fill(f[i], value);
            }
        }
    }

    static class Num{
        public static <K> void inc(Map<K, Integer> mem, K k) {
            if (!mem.containsKey(k)) mem.put(k, 0);
            mem.put(k, mem.get(k) + 1);
        }
    }
}