## 没用到API求解,纯暴力解法,在排序那里还有待优化,比如用更好的快速排序、归并排序等
import java.io.*;
public class Main {
public static void main(String[] args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String str = br.readLine();
int num = Integer.parseInt(str);
String[] words = new String[num];
String temp = "";
for(int i = 0; i < num; i++) {
words[i] = br.readLine();
}
for(int j = 0; j < num; j++) {
for(int k = j + 1; k < num; k++) {
if(isSwap(words[j], words[k])) {
temp = words[j];
words[j] = words[k];
words[k] = temp;
}
}
System.out.println(words[j]);
}
}
public static boolean isSwap(String word1, String word2) {
for (int i = 0; i < Math.min(word1.length(), word2.length()); i++) {
if (word1.charAt(i) - word2.charAt(i) > 0) {
return true;
}else if(word1.charAt(i) - word2.charAt(i) < 0) {
return false;
}
}
if(word1.length() <= word2.length()) {
return false;
}else {
return true;
}
}
}

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