{"id":3553,"date":"2024-03-13T07:07:17","date_gmt":"2024-03-13T07:07:17","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-method-in-c-language-for-combining-two-arrays\/"},"modified":"2025-07-30T17:57:40","modified_gmt":"2025-07-30T17:57:40","slug":"what-is-the-method-in-c-language-for-combining-two-arrays","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-method-in-c-language-for-combining-two-arrays\/","title":{"rendered":"Merge Two Arrays in C"},"content":{"rendered":"<p>In C language, merging two arrays usually requires creating a new array to store the combined result. Here is an example code for merging two arrays.<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;stdio.h&gt;<\/span><\/span>\r\n\r\n<span class=\"hljs-type\">int<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">()<\/span> {\r\n    <span class=\"hljs-type\">int<\/span> arr1[] = {<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>};\r\n    <span class=\"hljs-type\">int<\/span> arr2[] = {<span class=\"hljs-number\">6<\/span>, <span class=\"hljs-number\">7<\/span>, <span class=\"hljs-number\">8<\/span>, <span class=\"hljs-number\">9<\/span>, <span class=\"hljs-number\">10<\/span>};\r\n    <span class=\"hljs-type\">int<\/span> size1 = <span class=\"hljs-keyword\">sizeof<\/span>(arr1) \/ <span class=\"hljs-keyword\">sizeof<\/span>(arr1[<span class=\"hljs-number\">0<\/span>]);\r\n    <span class=\"hljs-type\">int<\/span> size2 = <span class=\"hljs-keyword\">sizeof<\/span>(arr2) \/ <span class=\"hljs-keyword\">sizeof<\/span>(arr2[<span class=\"hljs-number\">0<\/span>]);\r\n    <span class=\"hljs-type\">int<\/span> size3 = size1 + size2;\r\n\r\n    <span class=\"hljs-type\">int<\/span> mergedArr[size3];\r\n\r\n    <span class=\"hljs-comment\">\/\/ \u5c06arr1\u548carr2\u7684\u5143\u7d20\u4f9d\u6b21\u590d\u5236\u5230mergedArr\u4e2d<\/span>\r\n    <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-type\">int<\/span> i = <span class=\"hljs-number\">0<\/span>; i &lt; size1; i++) {\r\n        mergedArr[i] = arr1[i];\r\n    }\r\n    <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-type\">int<\/span> i = <span class=\"hljs-number\">0<\/span>; i &lt; size2; i++) {\r\n        mergedArr[size1 + i] = arr2[i];\r\n    }\r\n\r\n    <span class=\"hljs-comment\">\/\/ \u6253\u5370\u5408\u5e76\u540e\u7684\u6570\u7ec4<\/span>\r\n    <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-type\">int<\/span> i = <span class=\"hljs-number\">0<\/span>; i &lt; size3; i++) {\r\n        <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"%d \"<\/span>, mergedArr[i]);\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">0<\/span>;\r\n}\r\n<\/code><\/pre>\n<p>Running the code above will output the merged array: 1 2 3 4 5 6 7 8 9 10. In this code snippet, we first calculate the sizes of the two arrays and create a new array mergedArr to store the merged result based on their sizes. Then we use two loops to copy elements from arr1 and arr2 into mergedArr.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In C language, merging two arrays usually requires creating a new array to store the combined result. Here is an example code for merging two arrays. #include &lt;stdio.h&gt; int main() { int arr1[] = {1, 2, 3, 4, 5}; int arr2[] = {6, 7, 8, 9, 10}; int size1 = sizeof(arr1) \/ sizeof(arr1[0]); int size2 [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[2028,2025,2026,381,2027],"class_list":["post-3553","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-array-concatenation","tag-array-merge","tag-c-arrays","tag-c-programming","tag-combine-arrays"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Merge Two Arrays in C - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to merge arrays in C with step-by-step code examples. 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