http://poj.org/problem?id=3640 //* @author ������<hongxp11@163.com> import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.Reader; import java.util.Arrays; import java.util.Collections; import java.util.HashMap; import java.util.Map; import java.util.Set; public class Main { /** * @param args * @throws IOException * @throws NumberFormatException */ public static void main(String[] args) throws NumberFormatException, IOException { // TODO Auto-generated method stub BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); while (true) { Map< String, Integer> map = new HashMap< String, Integer>(); int max = 0; int n = Integer.parseInt(br.readLine()); if (n == 0) break; for (int i = 0; i < n; i++) { String s = br.readLine(); String[] array = s.split(" "); Arrays.sort(array); String key = new String(); for (int j = 0; j < array.length; j++) { key += array[j]; } // System.out.println("key:"+key); if (map.get(key) == null) map.put(key, 1); else { // System.out.println("here"); map.put(key, map.get(key) + 1); } if (max < map.get(key)) max = map.get(key); } int result = 0; Set<String> set = map.keySet(); for (String s : set) { if (max == map.get(s)) result += max; } System.out.println(result); } } }
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