mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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187 lines
22 KiB
JSON
187 lines
22 KiB
JSON
{
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"data": {
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"question": {
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"questionId": "2411",
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"questionFrontendId": "2326",
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"boundTopicId": null,
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"title": "Spiral Matrix IV",
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"titleSlug": "spiral-matrix-iv",
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"content": "<p>You are given two integers <code>m</code> and <code>n</code>, which represent the dimensions of a matrix.</p>\n\n<p>You are also given the <code>head</code> of a linked list of integers.</p>\n\n<p>Generate an <code>m x n</code> matrix that contains the integers in the linked list presented in <strong>spiral</strong> order <strong>(clockwise)</strong>, starting from the <strong>top-left</strong> of the matrix. If there are remaining empty spaces, fill them with <code>-1</code>.</p>\n\n<p>Return <em>the generated matrix</em>.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2022/05/09/ex1new.jpg\" style=\"width: 240px; height: 150px;\" />\n<pre>\n<strong>Input:</strong> m = 3, n = 5, head = [3,0,2,6,8,1,7,9,4,2,5,5,0]\n<strong>Output:</strong> [[3,0,2,6,8],[5,0,-1,-1,1],[5,2,4,9,7]]\n<strong>Explanation:</strong> The diagram above shows how the values are printed in the matrix.\nNote that the remaining spaces in the matrix are filled with -1.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2022/05/11/ex2.jpg\" style=\"width: 221px; height: 60px;\" />\n<pre>\n<strong>Input:</strong> m = 1, n = 4, head = [0,1,2]\n<strong>Output:</strong> [[0,1,2,-1]]\n<strong>Explanation:</strong> The diagram above shows how the values are printed from left to right in the matrix.\nThe last space in the matrix is set to -1.</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= m, n <= 10<sup>5</sup></code></li>\n\t<li><code>1 <= m * n <= 10<sup>5</sup></code></li>\n\t<li>The number of nodes in the list is in the range <code>[1, m * n]</code>.</li>\n\t<li><code>0 <= Node.val <= 1000</code></li>\n</ul>\n",
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"difficulty": "Medium",
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"exampleTestcases": "3\n5\n[3,0,2,6,8,1,7,9,4,2,5,5,0]\n1\n4\n[0,1,2]",
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"categoryTitle": "Algorithms",
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"name": "Array",
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"name": "Linked List",
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"lang": "C++",
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"code": "/**\n * Definition for singly-linked list.\n * struct ListNode {\n * int val;\n * ListNode *next;\n * ListNode() : val(0), next(nullptr) {}\n * ListNode(int x) : val(x), next(nullptr) {}\n * ListNode(int x, ListNode *next) : val(x), next(next) {}\n * };\n */\nclass Solution {\npublic:\n vector<vector<int>> spiralMatrix(int m, int n, ListNode* head) {\n \n }\n};",
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},
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{
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"code": "/**\n * Definition for singly-linked list.\n * public class ListNode {\n * int val;\n * ListNode next;\n * ListNode() {}\n * ListNode(int val) { this.val = val; }\n * ListNode(int val, ListNode next) { this.val = val; this.next = next; }\n * }\n */\nclass Solution {\n public int[][] spiralMatrix(int m, int n, ListNode head) {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Python",
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"code": "# Definition for singly-linked list.\n# class ListNode(object):\n# def __init__(self, val=0, next=None):\n# self.val = val\n# self.next = next\nclass Solution(object):\n def spiralMatrix(self, m, n, head):\n \"\"\"\n :type m: int\n :type n: int\n :type head: Optional[ListNode]\n :rtype: List[List[int]]\n \"\"\"\n ",
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"lang": "Python3",
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"code": "# Definition for singly-linked list.\n# class ListNode:\n# def __init__(self, val=0, next=None):\n# self.val = val\n# self.next = next\nclass Solution:\n def spiralMatrix(self, m: int, n: int, head: Optional[ListNode]) -> List[List[int]]:\n ",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "C",
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"langSlug": "c",
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"code": "/**\n * Definition for singly-linked list.\n * struct ListNode {\n * int val;\n * struct ListNode *next;\n * };\n */\n/**\n * Return an array of arrays of size *returnSize.\n * The sizes of the arrays are returned as *returnColumnSizes array.\n * Note: Both returned array and *columnSizes array must be malloced, assume caller calls free().\n */\nint** spiralMatrix(int m, int n, struct ListNode* head, int* returnSize, int** returnColumnSizes) {\n \n}",
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{
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"lang": "C#",
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"langSlug": "csharp",
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"code": "/**\n * Definition for singly-linked list.\n * public class ListNode {\n * public int val;\n * public ListNode next;\n * public ListNode(int val=0, ListNode next=null) {\n * this.val = val;\n * this.next = next;\n * }\n * }\n */\npublic class Solution {\n public int[][] SpiralMatrix(int m, int n, ListNode head) {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "JavaScript",
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"langSlug": "javascript",
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"code": "/**\n * Definition for singly-linked list.\n * function ListNode(val, next) {\n * this.val = (val===undefined ? 0 : val)\n * this.next = (next===undefined ? null : next)\n * }\n */\n/**\n * @param {number} m\n * @param {number} n\n * @param {ListNode} head\n * @return {number[][]}\n */\nvar spiralMatrix = function(m, n, head) {\n \n};",
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{
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"lang": "TypeScript",
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"code": "/**\n * Definition for singly-linked list.\n * class ListNode {\n * val: number\n * next: ListNode | null\n * constructor(val?: number, next?: ListNode | null) {\n * this.val = (val===undefined ? 0 : val)\n * this.next = (next===undefined ? null : next)\n * }\n * }\n */\n\nfunction spiralMatrix(m: number, n: number, head: ListNode | null): number[][] {\n \n};",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "PHP",
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"langSlug": "php",
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"code": "/**\n * Definition for a singly-linked list.\n * class ListNode {\n * public $val = 0;\n * public $next = null;\n * function __construct($val = 0, $next = null) {\n * $this->val = $val;\n * $this->next = $next;\n * }\n * }\n */\nclass Solution {\n\n /**\n * @param Integer $m\n * @param Integer $n\n * @param ListNode $head\n * @return Integer[][]\n */\n function spiralMatrix($m, $n, $head) {\n \n }\n}",
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{
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"lang": "Swift",
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"langSlug": "swift",
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"code": "/**\n * Definition for singly-linked list.\n * public class ListNode {\n * public var val: Int\n * public var next: ListNode?\n * public init() { self.val = 0; self.next = nil; }\n * public init(_ val: Int) { self.val = val; self.next = nil; }\n * public init(_ val: Int, _ next: ListNode?) { self.val = val; self.next = next; }\n * }\n */\nclass Solution {\n func spiralMatrix(_ m: Int, _ n: Int, _ head: ListNode?) -> [[Int]] {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Kotlin",
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"langSlug": "kotlin",
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"code": "/**\n * Example:\n * var li = ListNode(5)\n * var v = li.`val`\n * Definition for singly-linked list.\n * class ListNode(var `val`: Int) {\n * var next: ListNode? = null\n * }\n */\nclass Solution {\n fun spiralMatrix(m: Int, n: Int, head: ListNode?): Array<IntArray> {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Dart",
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"langSlug": "dart",
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"code": "/**\n * Definition for singly-linked list.\n * class ListNode {\n * int val;\n * ListNode? next;\n * ListNode([this.val = 0, this.next]);\n * }\n */\nclass Solution {\n List<List<int>> spiralMatrix(int m, int n, ListNode? head) {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Go",
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"langSlug": "golang",
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"code": "/**\n * Definition for singly-linked list.\n * type ListNode struct {\n * Val int\n * Next *ListNode\n * }\n */\nfunc spiralMatrix(m int, n int, head *ListNode) [][]int {\n \n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Ruby",
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"code": "# Definition for singly-linked list.\n# class ListNode\n# attr_accessor :val, :next\n# def initialize(val = 0, _next = nil)\n# @val = val\n# @next = _next\n# end\n# end\n# @param {Integer} m\n# @param {Integer} n\n# @param {ListNode} head\n# @return {Integer[][]}\ndef spiral_matrix(m, n, head)\n \nend",
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{
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"lang": "Scala",
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"code": "/**\n * Definition for singly-linked list.\n * class ListNode(_x: Int = 0, _next: ListNode = null) {\n * var next: ListNode = _next\n * var x: Int = _x\n * }\n */\nobject Solution {\n def spiralMatrix(m: Int, n: Int, head: ListNode): Array[Array[Int]] = {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Rust",
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"langSlug": "rust",
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"code": "// Definition for singly-linked list.\n// #[derive(PartialEq, Eq, Clone, Debug)]\n// pub struct ListNode {\n// pub val: i32,\n// pub next: Option<Box<ListNode>>\n// }\n// \n// impl ListNode {\n// #[inline]\n// fn new(val: i32) -> Self {\n// ListNode {\n// next: None,\n// val\n// }\n// }\n// }\nimpl Solution {\n pub fn spiral_matrix(m: i32, n: i32, head: Option<Box<ListNode>>) -> Vec<Vec<i32>> {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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{
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"lang": "Racket",
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"code": "; Definition for singly-linked list:\n#|\n\n; val : integer?\n; next : (or/c list-node? #f)\n(struct list-node\n (val next) #:mutable #:transparent)\n\n; constructor\n(define (make-list-node [val 0])\n (list-node val #f))\n\n|#\n\n(define/contract (spiral-matrix m n head)\n (-> exact-integer? exact-integer? (or/c list-node? #f) (listof (listof exact-integer?)))\n )",
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"__typename": "CodeSnippetNode"
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},
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"lang": "Erlang",
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"langSlug": "erlang",
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"code": "%% Definition for singly-linked list.\n%%\n%% -record(list_node, {val = 0 :: integer(),\n%% next = null :: 'null' | #list_node{}}).\n\n-spec spiral_matrix(M :: integer(), N :: integer(), Head :: #list_node{} | null) -> [[integer()]].\nspiral_matrix(M, N, Head) ->\n .",
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},
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{
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"lang": "Elixir",
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"langSlug": "elixir",
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"code": "# Definition for singly-linked list.\n#\n# defmodule ListNode do\n# @type t :: %__MODULE__{\n# val: integer,\n# next: ListNode.t() | nil\n# }\n# defstruct val: 0, next: nil\n# end\n\ndefmodule Solution do\n @spec spiral_matrix(m :: integer, n :: integer, head :: ListNode.t | nil) :: [[integer]]\n def spiral_matrix(m, n, head) do\n \n end\nend",
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"hints": [
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"First, generate an m x n matrix filled with -1s.",
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"Navigate within the matrix at (i, j) with the help of a direction vector ⟨di, dj⟩. At (i, j), you need to decide if you can keep going in the current direction.",
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"If you cannot keep going, rotate the direction vector clockwise by 90 degrees."
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],
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"sampleTestCase": "3\n5\n[3,0,2,6,8,1,7,9,4,2,5,5,0]",
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"metaData": "{\n \"name\": \"spiralMatrix\",\n \"params\": [\n {\n \"name\": \"m\",\n \"type\": \"integer\"\n },\n {\n \"type\": \"integer\",\n \"name\": \"n\"\n },\n {\n \"type\": \"ListNode\",\n \"name\": \"head\"\n }\n ],\n \"return\": {\n \"type\": \"integer[][]\"\n }\n}",
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Java 8 features such as lambda expressions and stream API can be used. </p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>\"], \"python\": [\"Python\", \"<p><code>Python 2.7.12</code>.</p>\\r\\n\\r\\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\\\"https://docs.python.org/2/library/array.html\\\" target=\\\"_blank\\\">array</a>, <a href=\\\"https://docs.python.org/2/library/bisect.html\\\" target=\\\"_blank\\\">bisect</a>, <a href=\\\"https://docs.python.org/2/library/collections.html\\\" target=\\\"_blank\\\">collections</a>. If you need more libraries, you can import it yourself.</p>\\r\\n\\r\\n<p>For Map/TreeMap data structure, you may use <a href=\\\"http://www.grantjenks.com/docs/sortedcontainers/\\\" target=\\\"_blank\\\">sortedcontainers</a> library.</p>\\r\\n\\r\\n<p>Note that Python 2.7 <a href=\\\"https://www.python.org/dev/peps/pep-0373/\\\" target=\\\"_blank\\\">will not be maintained past 2020</a>. For the latest Python, please choose Python3 instead.</p>\"], \"c\": [\"C\", \"<p>Compiled with <code>gcc 8.2</code> using the gnu11 standard.</p>\\r\\n\\r\\n<p>Your code is compiled with level one optimization (<code>-O1</code>). <a href=\\\"https://github.com/google/sanitizers/wiki/AddressSanitizer\\\" target=\\\"_blank\\\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n\\r\\n<p>For hash table operations, you may use <a href=\\\"https://troydhanson.github.io/uthash/\\\" target=\\\"_blank\\\">uthash</a>. \\\"uthash.h\\\" is included by default. Below are some examples:</p>\\r\\n\\r\\n<p><b>1. Adding an item to a hash.</b>\\r\\n<pre>\\r\\nstruct hash_entry {\\r\\n int id; /* we'll use this field as the key */\\r\\n char name[10];\\r\\n UT_hash_handle hh; /* makes this structure hashable */\\r\\n};\\r\\n\\r\\nstruct hash_entry *users = NULL;\\r\\n\\r\\nvoid add_user(struct hash_entry *s) {\\r\\n HASH_ADD_INT(users, id, s);\\r\\n}\\r\\n</pre>\\r\\n</p>\\r\\n\\r\\n<p><b>2. Looking up an item in a hash:</b>\\r\\n<pre>\\r\\nstruct hash_entry *find_user(int user_id) {\\r\\n struct hash_entry *s;\\r\\n HASH_FIND_INT(users, &user_id, s);\\r\\n return s;\\r\\n}\\r\\n</pre>\\r\\n</p>\\r\\n\\r\\n<p><b>3. 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If you need more libraries, you can import it yourself.</p>\\r\\n\\r\\n<p>For Map/TreeMap data structure, you may use <a href=\\\"http://www.grantjenks.com/docs/sortedcontainers/\\\" target=\\\"_blank\\\">sortedcontainers</a> library.</p>\"], \"scala\": [\"Scala\", \"<p><code>Scala 2.13.7</code>.</p>\"], \"kotlin\": [\"Kotlin\", \"<p><code>Kotlin 1.9.0</code>.</p>\"], \"rust\": [\"Rust\", \"<p><code>Rust 1.58.1</code></p>\\r\\n\\r\\n<p>Supports <a href=\\\"https://crates.io/crates/rand\\\" target=\\\"_blank\\\">rand </a> v0.6\\u00a0from crates.io</p>\"], \"php\": [\"PHP\", \"<p><code>PHP 8.1</code>.</p>\\r\\n<p>With bcmath module</p>\"], \"typescript\": [\"Typescript\", \"<p><code>TypeScript 5.1.6, Node.js 16.13.2</code>.</p>\\r\\n\\r\\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\\\"http://node.green/\\\" target=\\\"_blank\\\">new ES2022 features</a>.</p>\\r\\n\\r\\n<p><a href=\\\"https://lodash.com\\\" target=\\\"_blank\\\">lodash.js</a> library is included by default.</p>\"], \"racket\": [\"Racket\", \"<p>Run with <code>Racket 8.3</code>.</p>\"], \"erlang\": [\"Erlang\", \"Erlang/OTP 25.0\"], \"elixir\": [\"Elixir\", \"Elixir 1.13.4 with Erlang/OTP 25.0\"], \"dart\": [\"Dart\", \"<p>Dart 2.17.3</p>\\r\\n\\r\\n<p>Your code will be run directly without compiling</p>\"]}",
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"challengeQuestion": null,
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"__typename": "QuestionNode"
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}
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}
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} |