{"id":57,"date":"2018-11-26T19:00:50","date_gmt":"2018-11-26T19:00:50","guid":{"rendered":"https:\/\/andybase.com\/?p=57"},"modified":"2018-11-27T14:32:55","modified_gmt":"2018-11-27T14:32:55","slug":"945-minimum-increment-to-make-array-unique","status":"publish","type":"post","link":"https:\/\/andybase.com\/?p=57","title":{"rendered":"945 Minimum Increment to Make Array Unique"},"content":{"rendered":"\n<p>Link <a href=\"https:\/\/leetcode.com\/problems\/minimum-increment-to-make-array-unique\/\">Minimum Increment to Make Array Unique<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Thought<\/h2>\n\n\n\n<p>Firstly, I try to enumerate all existing number, and I got TLE :(. Then I realized I could sort the origin array and maintain a upper boundary, for any number, if it smaller than upper boundary, means I can only move it to upper boundary + 1 and count the moves. Otherwise, set the upper boundary to that number and keep going.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Code<\/h2>\n\n\n\n<pre class=\"wp-block-syntaxhighlighter-code brush: python; notranslate\">class Solution(object):\n    def minIncrementForUnique(self, A):\n        \"\"\"\n        :type A: List[int]\n        :rtype: int\n        \"\"\"\n        if not A:\n            return 0\n        p = dict()\n        A.sort()\n        cnt = 0\n        upper = A[0]\n        for i in A[1:]:\n            if i &lt;= upper:\n                upper +=1\n                cnt += upper - i\n            else:\n                upper = i \n        return cnt<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Runtime<\/h2>\n\n\n\n<p>Time: O(nlogn)<br>Space: O(1)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Link Minimum Increment to Make Array Unique Thought Firstly, I try to enumerate all existing number, and I got TLE [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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