{"id":35042,"date":"2024-11-01T09:34:56","date_gmt":"2024-11-01T09:34:56","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=35042"},"modified":"2024-11-01T11:45:12","modified_gmt":"2024-11-01T11:45:12","slug":"kotlin-coding-test-course-find-the-minimum-among-prime-palindrome-numbers","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/35042\/","title":{"rendered":"kotlin coding test course, find the minimum among prime & palindrome numbers"},"content":{"rendered":"

<\/p>\n

Problem Definition<\/h2>\n

Problem: Find the minimum palindromic prime number among all prime numbers within a given range.
\n A prime number is a natural number that has no divisors other than 1 and itself, while a palindromic number is a number that reads the same forwards and backwards.
\n The input consists of two integers A and B, representing the range from A to B inclusive.<\/p>\n

Input Example<\/h3>\n
\n    Input: 10 100\n    <\/pre>\n
Output Example<\/h3>\n
\n    Output: 101\n    <\/pre>\n
Problem Solving Process<\/h2>\n
To solve this problem, I will approach it in the following steps.<\/p>\n
Step 1: Implement Prime Check Function<\/h3>\n
First, I will implement a function to check for prime numbers. A prime number is a number that is only divisible by 1 and itself.
\n    To determine if a number is prime, it’s sufficient to check for divisibility by all integers from 2 to \u221an.<\/p>\n
\n    fun isPrime(num: Int): Boolean {\n        if (num < 2) return false\n        for (i in 2..Math.sqrt(num.toDouble()).toInt()) {\n            if (num % i == 0) return false\n        }\n        return true\n    }\n    <\/pre>\n
Step 2: Implement Palindrome Check Function<\/h3>\n
Once the primality check is implemented, I will implement the palindrome check. This can be done by converting the number to a string
\n    and checking if it is the same as its reverse.<\/p>\n
\n    fun isPalindrome(num: Int): Boolean {\n        val str = num.toString()\n        return str == str.reversed()\n    }\n    <\/pre>\n
Step 3: Find Prime & Palindromic Numbers<\/h3>\n
I will check all integers in the given range from A to B, verifying if each number is both prime and a palindrome.<\/p>\n
\n    fun findMinPalindromicPrime(A: Int, B: Int): Int? {\n        var minValue: Int? = null\n        for (num in A..B) {\n            if (isPrime(num) && isPalindrome(num)) {\n                if (minValue == null || num < minValue) {\n                    minValue = num\n                }\n            }\n        }\n        return minValue\n    }\n    <\/pre>\n
Step 4: Integrate into Main Function<\/h3>\n
Finally, I will write the main function to call all of the above functions and output the result.
\n    This will include taking user input and implementing the functionality to find the minimum value within the range.<\/p>\n
\n    fun main() {\n        val (A, B) = readLine()!!.split(\" \").map { it.toInt() }\n        val result = findMinPalindromicPrime(A, B)\n        \n        if (result != null) {\n            println(\"Minimum palindromic prime: $result\")\n        } else {\n            println(\"There are no palindromic primes in the given range.\")\n        }\n    }\n    <\/pre>\n
Summary<\/h2>\n
Now, let's summarize what we have implemented. The complete code is as follows.<\/p>\n
\n    fun isPrime(num: Int): Boolean {\n        if (num < 2) return false\n        for (i in 2..Math.sqrt(num.toDouble()).toInt()) {\n            if (num % i == 0) return false\n        }\n        return true\n    }\n\n    fun isPalindrome(num: Int): Boolean {\n        val str = num.toString()\n        return str == str.reversed()\n    }\n\n    fun findMinPalindromicPrime(A: Int, B: Int): Int? {\n        var minValue: Int? = null\n        for (num in A..B) {\n            if (isPrime(num) && isPalindrome(num)) {\n                if (minValue == null || num < minValue) {\n                    minValue = num\n                }\n            }\n        }\n        return minValue\n    }\n\n    fun main() {\n        val (A, B) = readLine()!!.split(\" \").map { it.toInt() }\n        val result = findMinPalindromicPrime(A, B)\n        \n        if (result != null) {\n            println(\"Minimum palindromic prime: $result\")\n        } else {\n            println(\"There are no palindromic primes in the given range.\")\n        }\n    }\n    <\/pre>\n
Conclusion<\/h2>\n
This article explained in detail how to determine primes and palindromes using Kotlin, and how to find the minimum value.
\n    Such problem-solving techniques are often included in algorithm questions for job interviews, so practicing them would be beneficial.
\n    Always try to solve various problems to continuously improve your skills.<\/p>\n
<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"
Problem Definition Problem: Find the minimum palindromic prime number among all prime numbers within a given range. A prime number is a natural number that has no divisors other than 1 and itself, while a palindromic number is a number that reads the same forwards and backwards. The input consists of two integers A and … \ub354 \ubcf4\uae30 “kotlin coding test course, find the minimum among prime & palindrome numbers”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[106],"tags":[],"class_list":["post-35042","post","type-post","status-publish","format-standard","hentry","category----en"],"yoast_head":"\nkotlin coding test course, find the minimum among prime & palindrome numbers - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8<\/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:\/\/atmokpo.com\/w\/35042\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"kotlin coding test course, find the minimum among prime & palindrome numbers - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\" \/>\n<meta property=\"og:description\" content=\"Problem Definition Problem: Find the minimum palindromic prime number among all prime numbers within a given range. A prime number is a natural number that has no divisors other than 1 and itself, while a palindromic number is a number that reads the same forwards and backwards. The input consists of two integers A and … \ub354 \ubcf4\uae30 "kotlin coding test course, find the minimum among prime & palindrome numbers"\" \/>\n<meta property=\"og:url\" content=\"https:\/\/atmokpo.com\/w\/35042\/\" \/>\n<meta property=\"og:site_name\" content=\"\ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\" \/>\n<meta property=\"article:published_time\" content=\"2024-11-01T09:34:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-11-01T11:45:12+00:00\" \/>\n<meta name=\"author\" content=\"root\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@bebubo4\" \/>\n<meta name=\"twitter:site\" content=\"@bebubo4\" \/>\n<meta name=\"twitter:label1\" content=\"\uae00\uc4f4\uc774\" \/>\n\t<meta name=\"twitter:data1\" content=\"root\" \/>\n\t<meta name=\"twitter:label2\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data2\" content=\"3\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/atmokpo.com\/w\/35042\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/atmokpo.com\/w\/35042\/\"},\"author\":{\"name\":\"root\",\"@id\":\"https:\/\/atmokpo.com\/w\/#\/schema\/person\/91b6b3b138fbba0efb4ae64b1abd81d7\"},\"headline\":\"kotlin coding test course, find the minimum among prime & palindrome numbers\",\"datePublished\":\"2024-11-01T09:34:56+00:00\",\"dateModified\":\"2024-11-01T11:45:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/atmokpo.com\/w\/35042\/\"},\"wordCount\":315,\"publisher\":{\"@id\":\"https:\/\/atmokpo.com\/w\/#organization\"},\"articleSection\":[\"Kotlin coding test\"],\"inLanguage\":\"ko-KR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/atmokpo.com\/w\/35042\/\",\"url\":\"https:\/\/atmokpo.com\/w\/35042\/\",\"name\":\"kotlin coding test course, find the minimum among prime & palindrome numbers - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\",\"isPartOf\":{\"@id\":\"https:\/\/atmokpo.com\/w\/#website\"},\"datePublished\":\"2024-11-01T09:34:56+00:00\",\"dateModified\":\"2024-11-01T11:45:12+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/atmokpo.com\/w\/35042\/#breadcrumb\"},\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/atmokpo.com\/w\/35042\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/atmokpo.com\/w\/35042\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\ud648\",\"item\":\"https:\/\/atmokpo.com\/w\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"kotlin coding test course, find the minimum among prime & palindrome numbers\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/atmokpo.com\/w\/#website\",\"url\":\"https:\/\/atmokpo.com\/w\/\",\"name\":\"\ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/atmokpo.com\/w\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/atmokpo.com\/w\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ko-KR\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/atmokpo.com\/w\/#organization\",\"name\":\"\ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\",\"url\":\"https:\/\/atmokpo.com\/w\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\/\/atmokpo.com\/w\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/atmokpo.com\/w\/wp-content\/uploads\/2024\/11\/logo.png\",\"contentUrl\":\"https:\/\/atmokpo.com\/w\/wp-content\/uploads\/2024\/11\/logo.png\",\"width\":400,\"height\":400,\"caption\":\"\ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\"},\"image\":{\"@id\":\"https:\/\/atmokpo.com\/w\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/x.com\/bebubo4\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/atmokpo.com\/w\/#\/schema\/person\/91b6b3b138fbba0efb4ae64b1abd81d7\",\"name\":\"root\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\/\/atmokpo.com\/w\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/708197b41fc6435a7ce22d951b25d4a47e9e904270cb1f04682d4f025066f80c?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/708197b41fc6435a7ce22d951b25d4a47e9e904270cb1f04682d4f025066f80c?s=96&d=mm&r=g\",\"caption\":\"root\"},\"sameAs\":[\"http:\/\/atmokpo.com\/w\"],\"url\":\"https:\/\/atmokpo.com\/w\/author\/root\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"kotlin coding test course, find the minimum among prime & palindrome numbers - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/atmokpo.com\/w\/35042\/","og_locale":"ko_KR","og_type":"article","og_title":"kotlin coding test course, find the minimum among prime & palindrome numbers - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8","og_description":"Problem Definition Problem: Find the minimum palindromic prime number among all prime numbers within a given range. A prime number is a natural number that has no divisors other than 1 and itself, while a palindromic number is a number that reads the same forwards and backwards. The input consists of two integers A and … \ub354 \ubcf4\uae30 \"kotlin coding test course, find the minimum among prime & palindrome numbers\"","og_url":"https:\/\/atmokpo.com\/w\/35042\/","og_site_name":"\ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8","article_published_time":"2024-11-01T09:34:56+00:00","article_modified_time":"2024-11-01T11:45:12+00:00","author":"root","twitter_card":"summary_large_image","twitter_creator":"@bebubo4","twitter_site":"@bebubo4","twitter_misc":{"\uae00\uc4f4\uc774":"root","\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"3\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/atmokpo.com\/w\/35042\/#article","isPartOf":{"@id":"https:\/\/atmokpo.com\/w\/35042\/"},"author":{"name":"root","@id":"https:\/\/atmokpo.com\/w\/#\/schema\/person\/91b6b3b138fbba0efb4ae64b1abd81d7"},"headline":"kotlin coding test course, find the minimum among prime & palindrome numbers","datePublished":"2024-11-01T09:34:56+00:00","dateModified":"2024-11-01T11:45:12+00:00","mainEntityOfPage":{"@id":"https:\/\/atmokpo.com\/w\/35042\/"},"wordCount":315,"publisher":{"@id":"https:\/\/atmokpo.com\/w\/#organization"},"articleSection":["Kotlin coding test"],"inLanguage":"ko-KR"},{"@type":"WebPage","@id":"https:\/\/atmokpo.com\/w\/35042\/","url":"https:\/\/atmokpo.com\/w\/35042\/","name":"kotlin coding test course, find the minimum among prime & palindrome numbers - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8","isPartOf":{"@id":"https:\/\/atmokpo.com\/w\/#website"},"datePublished":"2024-11-01T09:34:56+00:00","dateModified":"2024-11-01T11:45:12+00:00","breadcrumb":{"@id":"https:\/\/atmokpo.com\/w\/35042\/#breadcrumb"},"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/atmokpo.com\/w\/35042\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/atmokpo.com\/w\/35042\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\ud648","item":"https:\/\/atmokpo.com\/w\/en\/"},{"@type":"ListItem","position":2,"name":"kotlin coding test course, find the minimum among prime & palindrome numbers"}]},{"@type":"WebSite","@id":"https:\/\/atmokpo.com\/w\/#website","url":"https:\/\/atmokpo.com\/w\/","name":"\ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8","description":"","publisher":{"@id":"https:\/\/atmokpo.com\/w\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/atmokpo.com\/w\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ko-KR"},{"@type":"Organization","@id":"https:\/\/atmokpo.com\/w\/#organization","name":"\ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8","url":"https:\/\/atmokpo.com\/w\/","logo":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/atmokpo.com\/w\/#\/schema\/logo\/image\/","url":"https:\/\/atmokpo.com\/w\/wp-content\/uploads\/2024\/11\/logo.png","contentUrl":"https:\/\/atmokpo.com\/w\/wp-content\/uploads\/2024\/11\/logo.png","width":400,"height":400,"caption":"\ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8"},"image":{"@id":"https:\/\/atmokpo.com\/w\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/x.com\/bebubo4"]},{"@type":"Person","@id":"https:\/\/atmokpo.com\/w\/#\/schema\/person\/91b6b3b138fbba0efb4ae64b1abd81d7","name":"root","image":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/atmokpo.com\/w\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/708197b41fc6435a7ce22d951b25d4a47e9e904270cb1f04682d4f025066f80c?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/708197b41fc6435a7ce22d951b25d4a47e9e904270cb1f04682d4f025066f80c?s=96&d=mm&r=g","caption":"root"},"sameAs":["http:\/\/atmokpo.com\/w"],"url":"https:\/\/atmokpo.com\/w\/author\/root\/"}]}},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/atmokpo.com\/w\/wp-json\/wp\/v2\/posts\/35042","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/atmokpo.com\/w\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/atmokpo.com\/w\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/atmokpo.com\/w\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/atmokpo.com\/w\/wp-json\/wp\/v2\/comments?post=35042"}],"version-history":[{"count":1,"href":"https:\/\/atmokpo.com\/w\/wp-json\/wp\/v2\/posts\/35042\/revisions"}],"predecessor-version":[{"id":35043,"href":"https:\/\/atmokpo.com\/w\/wp-json\/wp\/v2\/posts\/35042\/revisions\/35043"}],"wp:attachment":[{"href":"https:\/\/atmokpo.com\/w\/wp-json\/wp\/v2\/media?parent=35042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/atmokpo.com\/w\/wp-json\/wp\/v2\/categories?post=35042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/atmokpo.com\/w\/wp-json\/wp\/v2\/tags?post=35042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}