题解 | #简单错误记录#

import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        ArrayList<ArrayList<String>> records = new ArrayList<>();
        HashMap<ArrayList<String>, Integer> recordsMistakes = new HashMap<>();
        while (scan.hasNext()) {
            String[] strs = scan.nextLine().split(" ");
            String path = strs[0];
            String index = strs[1].trim();
            String[] tmps = path.split("\\\\");
            String last = tmps[tmps.length - 1];
            if (last.length() > 16) {
                last = last.substring(last.length() - 16);
            }
            ArrayList<String> record = new ArrayList<>();
            record.add(last);
            record.add(index);
            if (!records.contains(record)) {
                records.add(record);
            }
            int mistake = recordsMistakes.getOrDefault(record, 0);
            mistake++;
            recordsMistakes.put(record, mistake);
        }
        if (records.size() <= 8) {
            for (int i = 0; i < records.size(); i++) {
                ArrayList<String> record = records.get(i);
                System.out.println(record.get(0) + " " + record.get(1) + " " + recordsMistakes.get(record));
            }
        } else {
            for (int i = records.size() - 8; i < records.size(); i++) {
                ArrayList<String> record = records.get(i);
                System.out.println(record.get(0) + " " + record.get(1) + " " + recordsMistakes.get(record));
            }
        } 
    }
}