{"id":6672,"date":"2022-02-01T17:41:22","date_gmt":"2022-02-01T12:11:22","guid":{"rendered":"https:\/\/golangbyexamples.com\/?p=6672"},"modified":"2022-02-01T18:02:39","modified_gmt":"2022-02-01T12:32:39","slug":"add-one-integer-array-go","status":"publish","type":"post","link":"https:\/\/golangbyexamples.com\/add-one-integer-array-go\/","title":{"rendered":"Plus one program or Add one to an integer array 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\/add-one-integer-array-go\/#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\/add-one-integer-array-go\/#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 integer array is given. Overall this integer array represents a number. So let&#8217;s say the integer array name is digits then digitis[i] denote the ith digit of the integer. The objective is to add 1 to that to that integer array. This has to be done without converting that array to a number of type int.<\/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: [1, 2]\nOutput: [1, 3]\n\nInput: [9, 9]\nOutput: [1, 0, 0]<\/code><\/pre>\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 plusOne(digits []int) []int {\n\n\tlenDigits := len(digits)\n\n\toutput := make([]int, 0)\n\n\tlastDigit := digits[lenDigits-1]\n\n\tadd := lastDigit + 1\n\tcarry := add \/ 10\n\n\tlastDigit = add % 10\n\toutput = append(output, lastDigit)\n\n\tfor i := lenDigits - 2; i >= 0; i-- {\n\t\to := digits[i] + carry\n\t\tlastDigit = o % 10\n\t\tcarry = o \/ 10\n\t\toutput = append(output, lastDigit)\n\t}\n\n\tif carry == 1 {\n\t\toutput = append(output, 1)\n\t}\n\n\treturn reverse(output, len(output))\n}\n\nfunc reverse(input []int, length int) []int {\n\tstart := 0\n\tend := length - 1\n\n\tfor start < end {\n\t\tinput[start], input[end] = input[end], input[start]\n\t\tstart++\n\t\tend--\n\t}\n\n\treturn input\n}\n\nfunc main() {\n\toutput := plusOne([]int{1, 2})\n\tfmt.Println(output)\n\n\toutput = plusOne([]int{9, 9})\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\">[1 3]\n[1 0 0]<\/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 - <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 -<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 integer array is given. Overall this integer array represents a number. So let&#8217;s say the integer array name is digits then digitis[i] denote the ith digit&#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-6672","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>Plus one program or Add one to an integer array 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\/add-one-integer-array-go\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Plus one program or Add one to an integer array in Go (Golang) - Welcome To Golang By Example\" \/>\n<meta property=\"og:description\" content=\"Table of Contents OverviewProgram Overview An integer array is given. 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