{ "data": { "question": { "questionId": "1000433", "questionFrontendId": "LCP 50", "categoryTitle": "Algorithms", "boundTopicId": 1425580, "title": "宝石补给", "titleSlug": "WHnhjV", "content": "", "translatedTitle": "宝石补给", "translatedContent": "欢迎各位勇者来到力扣新手村，在开始试炼之前，请各位勇者先进行「宝石补给」。\n\n每位勇者初始都拥有一些能量宝石， `gem[i]` 表示第 `i` 位勇者的宝石数量。现在这些勇者们进行了一系列的赠送，`operations[j] = [x, y]` 表示在第 `j` 次的赠送中 第 `x` 位勇者将自己一半的宝石（需向下取整）赠送给第 `y` 位勇者。\n\n在完成所有的赠送后，请找到拥有**最多**宝石的勇者和拥有**最少**宝石的勇者，并返回他们二者的宝石数量**之差**。\n\n**注意：**\n- 赠送将按顺序逐步进行。\n\n**示例 1：**\n>输入：`gem = [3,1,2], operations = [[0,2],[2,1],[2,0]]`\n>\n>输出：`2`\n>\n>解释：\n>第 1 次操作，勇者 `0` 将一半的宝石赠送给勇者 `2`， `gem = [2,1,3]`\n>第 2 次操作，勇者 `2` 将一半的宝石赠送给勇者 `1`， `gem = [2,2,2]`\n>第 3 次操作，勇者 `2` 将一半的宝石赠送给勇者 `0`， `gem = [3,2,1]`\n>返回 3 - 1 = 2\n\n**示例 2：**\n>输入：`gem = [100,0,50,100], operations = [[0,2],[0,1],[3,0],[3,0]]`\n>\n>输出：`75`\n>\n>解释：\n>第 1 次操作，勇者 `0` 将一半的宝石赠送给勇者 `2`， `gem = [50,0,100,100]`\n>第 2 次操作，勇者 `0` 将一半的宝石赠送给勇者 `1`， `gem = [25,25,100,100]`\n>第 3 次操作，勇者 `3` 将一半的宝石赠送给勇者 `0`， `gem = [75,25,100,50]`\n>第 4 次操作，勇者 `3` 将一半的宝石赠送给勇者 `0`， `gem = [100,25,100,25]`\n>返回 100 - 25 = 75\n\n**示例 3：**\n>输入：`gem = [0,0,0,0], operations = [[1,2],[3,1],[1,2]]`\n>\n>输出：`0`\n\n**提示：**\n- `2 <= gem.length <= 10^3`\n- `0 <= gem[i] <= 10^3`\n- `0 <= operations.length <= 10^4`\n- `operations[i].length == 2`\n- `0 <= operations[i][0], operations[i][1] < gem.length`", "isPaidOnly": false, "difficulty": "Easy", "likes": 2, "dislikes": 0, "isLiked": null, "similarQuestions": "[]", "contributors": [ { "username": "LeetCode", "profileUrl": "/u/leetcode", "avatarUrl": "https://assets.leetcode-cn.com/aliyun-lc-upload/uploaded_files/2021/03/73c9f099-abbe-4d94-853f-f8abffd459cd/leetcode.png", "__typename": "ContributorNode" } ], "langToValidPlayground": "{\"cpp\": false, \"java\": true, \"python\": true, \"python3\": false, \"mysql\": false, \"mssql\": false, \"oraclesql\": false, \"c\": false, \"csharp\": false, \"javascript\": false, \"ruby\": false, \"bash\": false, \"swift\": false, \"golang\": false, \"scala\": false, \"html\": false, \"pythonml\": false, \"kotlin\": false, \"rust\": false, \"php\": false, \"typescript\": false, \"racket\": false, \"erlang\": false, \"elixir\": false}", "topicTags": [], "companyTagStats": null, "codeSnippets": [ { "lang": "C++", "langSlug": "cpp", "code": "class Solution {\npublic:\n int giveGem(vector& gem, vector>& operations) {\n\n }\n};", "__typename": "CodeSnippetNode" }, { "lang": "Java", "langSlug": "java", "code": "class Solution {\n public int giveGem(int[] gem, int[][] operations) {\n\n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Python", "langSlug": "python", "code": "class Solution(object):\n def giveGem(self, gem, operations):\n \"\"\"\n :type gem: List[int]\n :type operations: List[List[int]]\n :rtype: int\n \"\"\"", "__typename": "CodeSnippetNode" }, { "lang": "Python3", "langSlug": "python3", "code": "class Solution:\n def giveGem(self, gem: List[int], operations: List[List[int]]) -> int:", "__typename": "CodeSnippetNode" }, { "lang": "C", "langSlug": "c", "code": "\n\nint giveGem(int* gem, int gemSize, int** operations, int operationsSize, int* operationsColSize){\n\n}", "__typename": "CodeSnippetNode" }, { "lang": "C#", "langSlug": "csharp", "code": "public class Solution {\n public int GiveGem(int[] gem, int[][] operations) {\n\n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "JavaScript", "langSlug": "javascript", "code": "/**\n * @param {number[]} gem\n * @param {number[][]} operations\n * @return {number}\n */\nvar giveGem = function(gem, operations) {\n\n};", "__typename": "CodeSnippetNode" }, { "lang": "Ruby", "langSlug": "ruby", "code": "# @param {Integer[]} gem\n# @param {Integer[][]} operations\n# @return {Integer}\ndef give_gem(gem, operations)\n\nend", "__typename": "CodeSnippetNode" }, { "lang": "Swift", "langSlug": "swift", "code": "class Solution {\n func giveGem(_ gem: [Int], _ operations: [[Int]]) -> Int {\n\n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Go", "langSlug": "golang", "code": "func giveGem(gem []int, operations [][]int) int {\n\n}", "__typename": "CodeSnippetNode" }, { "lang": "Scala", "langSlug": "scala", "code": "object Solution {\n def giveGem(gem: Array[Int], operations: Array[Array[Int]]): Int = {\n\n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Kotlin", "langSlug": "kotlin", "code": "class Solution {\n fun giveGem(gem: IntArray, operations: Array): Int {\n\n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Rust", "langSlug": "rust", "code": "impl Solution {\n pub fn give_gem(gem: Vec, operations: Vec>) -> i32 {\n\n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "PHP", "langSlug": "php", "code": "class Solution {\n\n /**\n * @param Integer[] $gem\n * @param Integer[][] $operations\n * @return Integer\n */\n function giveGem($gem, $operations) {\n\n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "TypeScript", "langSlug": "typescript", "code": "function giveGem(gem: number[], operations: number[][]): number {\n\n};", "__typename": "CodeSnippetNode" }, { "lang": "Racket", "langSlug": "racket", "code": "(define/contract (give-gem gem operations)\n (-> (listof exact-integer?) 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