{"id":6662,"date":"2022-02-01T17:32:20","date_gmt":"2022-02-01T12:02:20","guid":{"rendered":"https:\/\/golangbyexamples.com\/?p=6662"},"modified":"2022-02-01T17:33:37","modified_gmt":"2022-02-01T12:03:37","slug":"buy-sell-stock-golang","status":"publish","type":"post","link":"https:\/\/golangbyexamples.com\/buy-sell-stock-golang\/","title":{"rendered":"Best time to Buy-Sell Stocks Program in Go (Golang)"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_17 counter-hierarchy counter-decimal ez-toc-light-blue\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><i class=\"ez-toc-glyphicon ez-toc-icon-toggle\"><\/i><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1\"><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/golangbyexamples.com\/buy-sell-stock-golang\/#Overview\" title=\"Overview\">Overview<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/golangbyexamples.com\/buy-sell-stock-golang\/#Program\" title=\"Program\">Program<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"has-luminous-vivid-orange-color has-text-color has-large-font-size wp-block-heading\" id=\"overview\"><span class=\"ez-toc-section\" id=\"Overview\"><\/span><strong>Overview<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"has-medium-font-size\">An array <strong>prices<\/strong> is given where <strong>prices[i]<\/strong> represent the price of a stock on the ith day.\u00a0 You can only buy and sell once. Find the max profit you can earn by buying and selling the stock once.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Example<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-go\">Input: [4,2,3,8,1]\nOutput: 6\nBuy on the second day at 2 and sell on the 4th day at 8. Profit = 8-2 = 6<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\">The original order should be preserved as well<\/p>\n\n\n\n<h2 class=\"has-luminous-vivid-orange-color has-text-color has-large-font-size wp-block-heading\" id=\"program\"><span class=\"ez-toc-section\" id=\"Program\"><\/span><strong>Program<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"has-medium-font-size\">Here is the program for the same.<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-go\">package main\n\nimport \"fmt\"\n\nfunc maxProfit(prices []int) int {\n\tlenPrices := len(prices)\n\n\tbuy := -1\n\tsell := -1\n\n\tmaxProphit := 0\n\n\tfor i := 0; i < lenPrices; {\n\t\tfor i+1 < lenPrices &#038;&#038; prices[i] > prices[i+1] {\n\t\t\ti++\n\t\t}\n\n\t\tif i == lenPrices-1 {\n\t\t\treturn maxProphit\n\t\t}\n\n\t\tbuy = i\n\n\t\ti++\n\n\t\tfor i+1 < lenPrices &#038;&#038; prices[i] < prices[i+1] {\n\t\t\ti++\n\t\t}\n\n\t\tsell = i\n\n\t\tif (prices[sell] - prices[buy]) > maxProphit {\n\t\t\tmaxProphit = prices[sell] - prices[buy]\n\t\t}\n\t\ti++\n\t}\n\n\treturn maxProphit\n}\n\nfunc main() {\n\toutput := maxProfit([]int{4, 2, 3, 8, 1})\n\tfmt.Println(output)\n}<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-go\">6<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Note: <\/strong>Check out our Golang Advanced Tutorial. The tutorials in this series are elaborative and we have tried to cover all concepts with examples. This tutorial is for those who are looking to gain expertise and a solid understanding of golang &#8211; <a href=\"https:\/\/golangbyexamples.com\/golang-comprehensive-tutorial\/\">Golang Advance Tutorial<\/a><\/p>\n\n\n\n<p class=\"has-medium-font-size\">Also if you are interested in understanding how all design patterns can be implemented in Golang. If yes, then this post is for you &#8211;<a href=\"https:\/\/golangbyexamples.com\/all-design-patterns-golang\/\">All Design Patterns Golang<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Table of Contents OverviewProgram Overview An array prices is given where prices[i] represent the price of a stock on the ith day.\u00a0 You can only buy and sell once. Find the max&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false},"categories":[1],"tags":[3,4],"class_list":["post-6662","post","type-post","status-publish","format-standard","hentry","category-tech","tag-go","tag-golang"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Best time to Buy-Sell Stocks Program in Go (Golang) - Welcome To Golang By Example<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/golangbyexamples.com\/buy-sell-stock-golang\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Best time to Buy-Sell Stocks Program in Go (Golang) - Welcome To Golang By Example\" \/>\n<meta property=\"og:description\" content=\"Table of Contents OverviewProgram Overview An array prices is given where prices[i] represent the price of a stock on the ith day.\u00a0 You can only buy and sell once. 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