{"id":8850,"date":"2021-11-28T08:33:35","date_gmt":"2021-11-28T16:33:35","guid":{"rendered":"https:\/\/zxi.mytechroad.com\/blog\/?p=8850"},"modified":"2021-11-28T08:41:08","modified_gmt":"2021-11-28T16:41:08","slug":"leetcode-2089-find-target-indices-after-sorting-array","status":"publish","type":"post","link":"https:\/\/zxi.mytechroad.com\/blog\/algorithms\/array\/leetcode-2089-find-target-indices-after-sorting-array\/","title":{"rendered":"\u82b1\u82b1\u9171 LeetCode 2089. Find Target Indices After Sorting Array"},"content":{"rendered":"\n

You are given a 0-indexed<\/strong> integer array nums<\/code> and a target element target<\/code>.<\/p>\n\n\n\n

A target index<\/strong> is an index i<\/code> such that nums[i] == target<\/code>.<\/p>\n\n\n\n

Return a list of the target indices of<\/em> nums<\/code> after sorting <\/em>nums<\/code> in non-decreasing<\/strong> order<\/em>. If there are no target indices, return an empty<\/strong> list<\/em>. The returned list must be sorted in increasing<\/strong> order.<\/p>\n\n\n\n

Example 1:<\/strong><\/p>\n\n\n\n

Input:<\/strong> nums = [1,2,5,2,3], target = 2\nOutput:<\/strong> [1,2]\nExplanation:<\/strong> After sorting, nums is [1,2<\/strong>,2<\/strong>,3,5].\nThe indices where nums[i] == 2 are 1 and 2.\n<\/pre>\n\n\n\n
Example 2:<\/strong><\/p>\n\n\n\n
Input:<\/strong> nums = [1,2,5,2,3], target = 3\nOutput:<\/strong> [3]\nExplanation:<\/strong> After sorting, nums is [1,2,2,3<\/strong>,5].\nThe index where nums[i] == 3 is 3.\n<\/pre>\n\n\n\n
Example 3:<\/strong><\/p>\n\n\n\n
Input:<\/strong> nums = [1,2,5,2,3], target = 5\nOutput:<\/strong> [4]\nExplanation:<\/strong> After sorting, nums is [1,2,2,3,5<\/strong>].\nThe index where nums[i] == 5 is 4.\n<\/pre>\n\n\n\n
Example 4:<\/strong><\/p>\n\n\n\n
Input:<\/strong> nums = [1,2,5,2,3], target = 4\nOutput:<\/strong> []\nExplanation:<\/strong> There are no elements in nums with value 4.\n<\/pre>\n\n\n\n
Constraints:<\/strong><\/p>\n\n\n\n
  • 1 <= nums.length <= 100<\/code><\/li>
  • 1 <= nums[i], target <= 100<\/code><\/li><\/ul>\n\n\n\n
    Solution: Sorting<\/strong><\/h2>\n\n\n\n
    Time complexity: O(nlogn)
    Space complexity: O(1)<\/p>\n\n\n\n
    \n
    C++<\/h2>\n
    \n\n
    \n\/\/ Author: Huahua\nclass Solution {\npublic:\n  vector targetIndices(vector& nums, int target) {\n    sort(begin(nums), end(nums));\n    vector ans;\n    for (int i = 0; i < nums.size(); ++i)\n      if (nums[i] == target) ans.push_back(i);\n    return ans;\n  }\n};\n<\/pre>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"
    You are given a 0-indexed integer array nums and a target element target. A target index is an index i such that nums[i] == target. Return a list of the target indices of nums after sorting nums in non-decreasing order. If there are…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[184],"tags":[20,222,15],"class_list":["post-8850","post","type-post","status-publish","format-standard","hentry","category-array","tag-array","tag-easy","tag-sorting","entry","simple"],"_links":{"self":[{"href":"https:\/\/zxi.mytechroad.com\/blog\/wp-json\/wp\/v2\/posts\/8850","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zxi.mytechroad.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zxi.mytechroad.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zxi.mytechroad.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zxi.mytechroad.com\/blog\/wp-json\/wp\/v2\/comments?post=8850"}],"version-history":[{"count":2,"href":"https:\/\/zxi.mytechroad.com\/blog\/wp-json\/wp\/v2\/posts\/8850\/revisions"}],"predecessor-version":[{"id":8852,"href":"https:\/\/zxi.mytechroad.com\/blog\/wp-json\/wp\/v2\/posts\/8850\/revisions\/8852"}],"wp:attachment":[{"href":"https:\/\/zxi.mytechroad.com\/blog\/wp-json\/wp\/v2\/media?parent=8850"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zxi.mytechroad.com\/blog\/wp-json\/wp\/v2\/categories?post=8850"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zxi.mytechroad.com\/blog\/wp-json\/wp\/v2\/tags?post=8850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}