mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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174 lines
17 KiB
JSON
174 lines
17 KiB
JSON
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"title": "Replace Elements in an Array",
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"content": "<p>You are given a <strong>0-indexed</strong> array <code>nums</code> that consists of <code>n</code> <strong>distinct</strong> positive integers. Apply <code>m</code> operations to this array, where in the <code>i<sup>th</sup></code> operation you replace the number <code>operations[i][0]</code> with <code>operations[i][1]</code>.</p>\n\n<p>It is guaranteed that in the <code>i<sup>th</sup></code> operation:</p>\n\n<ul>\n\t<li><code>operations[i][0]</code> <strong>exists</strong> in <code>nums</code>.</li>\n\t<li><code>operations[i][1]</code> does <strong>not</strong> exist in <code>nums</code>.</li>\n</ul>\n\n<p>Return <em>the array obtained after applying all the operations</em>.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,2,4,6], operations = [[1,3],[4,7],[6,1]]\n<strong>Output:</strong> [3,2,7,1]\n<strong>Explanation:</strong> We perform the following operations on nums:\n- Replace the number 1 with 3. nums becomes [<u><strong>3</strong></u>,2,4,6].\n- Replace the number 4 with 7. nums becomes [3,2,<u><strong>7</strong></u>,6].\n- Replace the number 6 with 1. nums becomes [3,2,7,<u><strong>1</strong></u>].\nWe return the final array [3,2,7,1].\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,2], operations = [[1,3],[2,1],[3,2]]\n<strong>Output:</strong> [2,1]\n<strong>Explanation:</strong> We perform the following operations to nums:\n- Replace the number 1 with 3. nums becomes [<u><strong>3</strong></u>,2].\n- Replace the number 2 with 1. nums becomes [3,<u><strong>1</strong></u>].\n- Replace the number 3 with 2. nums becomes [<u><strong>2</strong></u>,1].\nWe return the array [2,1].\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>n == nums.length</code></li>\n\t<li><code>m == operations.length</code></li>\n\t<li><code>1 <= n, m <= 10<sup>5</sup></code></li>\n\t<li>All the values of <code>nums</code> are <strong>distinct</strong>.</li>\n\t<li><code>operations[i].length == 2</code></li>\n\t<li><code>1 <= nums[i], operations[i][0], operations[i][1] <= 10<sup>6</sup></code></li>\n\t<li><code>operations[i][0]</code> will exist in <code>nums</code> when applying the <code>i<sup>th</sup></code> operation.</li>\n\t<li><code>operations[i][1]</code> will not exist in <code>nums</code> when applying the <code>i<sup>th</sup></code> operation.</li>\n</ul>\n",
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"exampleTestcases": "[1,2,4,6]\n[[1,3],[4,7],[6,1]]\n[1,2]\n[[1,3],[2,1],[3,2]]",
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"categoryTitle": "Algorithms",
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"code": "class Solution {\npublic:\n vector<int> arrayChange(vector<int>& nums, vector<vector<int>>& operations) {\n \n }\n};",
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"code": "class Solution(object):\n def arrayChange(self, nums, operations):\n \"\"\"\n :type nums: List[int]\n :type operations: List[List[int]]\n :rtype: List[int]\n \"\"\"\n ",
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"code": "\n\n/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nint* arrayChange(int* nums, int numsSize, int** operations, int operationsSize, int* operationsColSize, int* returnSize){\n\n}",
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"code": "public class Solution {\n public int[] ArrayChange(int[] nums, int[][] operations) {\n \n }\n}",
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"lang": "JavaScript",
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"code": "/**\n * @param {number[]} nums\n * @param {number[][]} operations\n * @return {number[]}\n */\nvar arrayChange = function(nums, operations) {\n \n};",
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"code": "# @param {Integer[]} nums\n# @param {Integer[][]} operations\n# @return {Integer[]}\ndef array_change(nums, operations)\n \nend",
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"code": "class Solution {\n func arrayChange(_ nums: [Int], _ operations: [[Int]]) -> [Int] {\n \n }\n}",
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"lang": "Go",
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"code": "func arrayChange(nums []int, operations [][]int) []int {\n \n}",
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"lang": "Scala",
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"langSlug": "scala",
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"code": "object Solution {\n def arrayChange(nums: Array[Int], operations: Array[Array[Int]]): Array[Int] = {\n \n }\n}",
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"lang": "Kotlin",
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"code": "class Solution {\n fun arrayChange(nums: IntArray, operations: Array<IntArray>): IntArray {\n \n }\n}",
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"lang": "Rust",
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"langSlug": "rust",
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"code": "impl Solution {\n pub fn array_change(nums: Vec<i32>, operations: Vec<Vec<i32>>) -> Vec<i32> {\n \n }\n}",
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"code": "class Solution {\n\n /**\n * @param Integer[] $nums\n * @param Integer[][] $operations\n * @return Integer[]\n */\n function arrayChange($nums, $operations) {\n \n }\n}",
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"code": "function arrayChange(nums: number[], operations: number[][]): number[] {\n\n};",
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"code": "(define/contract (array-change nums operations)\n (-> (listof exact-integer?) (listof (listof exact-integer?)) (listof exact-integer?))\n\n )",
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"code": "-spec array_change(Nums :: [integer()], Operations :: [[integer()]]) -> [integer()].\narray_change(Nums, Operations) ->\n .",
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"code": "defmodule Solution do\n @spec array_change(nums :: [integer], operations :: [[integer]]) :: [integer]\n def array_change(nums, operations) do\n\n end\nend",
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"Can you think of a data structure that will allow you to store the position of each number?",
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"Use that data structure to instantly replace a number with its new value."
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