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题解 | #最小花费爬楼梯#

import java.util.*; public class Solution { /** * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可 * * * @param cost int整型一维数组 * ...

Java

2022-05-05

0 280

题解 | #跳台阶#

public class Solution { public int jumpFloor(int target) { int[] dp = new int[target +1]; if(target == 1) return 1; if(tar...

Java

2022-05-05

0 247

题解 | #斐波那契数列#

public class Solution { public int Fibonacci(int n) { int f1 = 1,f2 = 1; for(int i = 3; i <= n; i++){ int t = f1 + ...

Java

2022-05-05

0 234

题解 | #矩阵最长递增路径#

import java.util.*; // 带有记忆的深度优先! public class Solution { private int[][] memory; public int solve (int[][] matrix) { memory = new in...

Java

2022-05-02

0 325

题解 | #括号生成#

import java.util.*; public class Solution { /** * * @param n int整型 * @return string字符串ArrayList */ public ArrayList<...

Java

2022-05-02

0 305

题解 | #N皇后问题#

import java.util.*; public class Solution { /** * * @param n int整型 the n * @return int整型 */ private int ans = 0; pu...

Java

2022-05-02

0 316

题解 | #字符串的排列#

import java.util.*; public class Solution { public ArrayList<String> Permutation(String str) { ArrayList<String> list = new Ar...

Java

2022-05-02

0 332

题解 | #岛屿数量#

import java.util.*; public class Solution { // 多源dfs public int solve (char[][] grid) { int ans = 0; for(int i = 0; i < gr...

Java

2022-05-02

0 274

题解 | #有重复项数字的全排列#

import java.util.*; public class Solution { public ArrayList<ArrayList<Integer>> permuteUnique(int[] num) { Arrays.sort(num);...

Java

2022-05-02

0 284

题解 | #没有重复项数字的全排列#

import java.util.*; public class Solution { public ArrayList<ArrayList<Integer>> permute(int[] num) { Arrays.sort(num); ...

Java

2022-05-01

0 315