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题解 | #字符串的排列#
import java.util.*; class Solution { StringBuffer sf = new StringBuffer(); Set<String> set = new HashSet<>(); public ArrayLis...
Java
2021-10-03
0
361
题解 | #翻转单词序列#
public class Solution { public String ReverseSentence(String str) { String s[] = str.split(" "); StringBuilder sb = new StringBuil...
Java
2021-09-30
0
303
题解 | #顺时针打印矩阵#
import java.util.ArrayList; public class Solution { public ArrayList<Integer> printMatrix(int [][] matrix) { if(matrix.length==0)retu...
Java
2021-09-22
0
279
题解 | #链表中倒数最后k个结点#
import java.util.*; /* * public class ListNode { * int val; * ListNode next = null; * public ListNode(int val) { * this.val = val; * ...
Java
2021-09-21
0
261
题解 | #旋转数组的最小数字#
import java.util.ArrayList; public class Solution { public int minNumberInRotateArray(int [] array) { int left = 0; int right = ar...
Java
2021-09-20
0
361
题解 | #获取当前薪水第二多的员工的emp_no以及其对应的薪水salary#
select a.emp_no,max(a.salary) as salary,b.last_name,b.first_name from salaries a left join employees b on a.emp_no=b.emp_no where a.salary<(select ...
Sqlite
2021-09-17
0
192