题解 | #简单错误记录#
简单错误记录
https://www.nowcoder.com/practice/2baa6aba39214d6ea91a2e03dff3fbeb
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.*;
public class Main {
public static void main(String[] arge) throws Exception {
BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
String str;
LinkedHashMap<String,Integer> map = new LinkedHashMap<>();
Scanner scanner = new Scanner(System.in);
while (scanner.hasNext()){
String nextLine = scanner.nextLine();
String[] split = nextLine.split(" ");
String preStr = split[0];
String[] split1 = preStr.split("\\\\");
String lastStr = split1[split1.length - 1];
lastStr = lastStr.length()>16?lastStr.substring(lastStr.length()-16):lastStr;
lastStr = lastStr+" "+split[1];
if (!map.containsKey(lastStr)){
map.put(lastStr,1);
}else {
map.put(lastStr,map.get(lastStr)+1);
}
}
int count = 0;
int index = 0;
for (String s : map.keySet()) {
if (count<8&&index++>=map.size()-8){
count++;
System.out.println(s+" "+map.get(s));
}
}
}
}
使用linkedhashmap记录插入顺序 使用count 和index将倒数8个正序输出 前面都是一个字符串操作
#华为od#
