{"id":12318,"date":"2022-09-30T10:38:00","date_gmt":"2022-09-30T05:08:00","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-how-to-split-a-string-for-equation\/"},"modified":"2022-09-30T10:38:00","modified_gmt":"2022-09-30T05:08:00","slug":"solved-how-to-split-a-string-for-equation","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-how-to-split-a-string-for-equation\/","title":{"rendered":"[Solved] how to split a string for equation"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-36612500\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"36612500\" data-parentid=\"35930012\" data-score=\"0\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<h1>To extract characters from a string and to store them into a Character Array<\/h1>\n<p>Simple Method (Using string indexing):<\/p>\n<pre><code>#include&lt;iostream&gt;\n\nusing namespace std;\n\/\/ Using the namespace std to use string.\n\nint main(int argc, char** argv) {\n    string input;\n    cout &lt;&lt; \"Enter a string: \";\n    cin&gt;&gt;input;     \/\/ To read the input from the user.\n    \n    int strLength = input.length(); \/\/ To compute the length of the string.\n    char * charArray = new char[strLength]; \/\/Dynamic memory allocation\n\n    \/**\n     * The following for loop converts the string into an array.\n    *\/\n    for (int i=0; i&lt;strLength; i++) {\n        charArray[i] = input[i];\n    }\n\n    cout &lt;&lt; endl &lt;&lt; \"The elements of the character array are as follows: {\";\n    for (int i = 0; i &lt; strLength; i++) {\n        if (i != strLength - 1) {\n            cout &lt;&lt; \"\\'\" &lt;&lt; charArray[i] &lt;&lt; \"\\', \";\n        } else {\n            cout &lt;&lt; \"\\'\" &lt;&lt; charArray[i] &lt;&lt; \"\\'}\";\n        }   \n    }\n\n    delete [] charArray;\n    return 0;\n}\n<\/code><\/pre>\n<p>Sample Output:<\/p>\n<pre>\nEnter a string: Hello\n\nThe elements of the character array are as follows: {'H', 'e', 'l', 'l', 'o'}\nRUN SUCCESSFUL (total time: 3s)\n<\/pre>\n<p>To handle more complex inputs or if you are interested in a more complex structure, the following program should help you:<\/p>\n<pre><code>#include&lt;iostream&gt;\n\nusing namespace std;\n\/\/ Using the namespace std to use string.\n\nint main(int argc, char** argv) {\n    string input;\n    cout &lt;&lt; \"Enter a string: \";\n    cin&gt;&gt;input;     \/\/ To read the input from the user.\n    \n    int strLength = input.length(); \/\/ To compute the length of the string.\n    char * charArray = new char[strLength]; \/\/Dynamic memory allocation\n    int loopVar = 0;\n\n    \/**\n     * The following for loop converts the string into an array.\n    *\/\n    for (const char* iterativeVar = input.c_str(); *iterativeVar; iterativeVar++) {\n        charArray[loopVar] = *iterativeVar;\n        ++loopVar;\n    }\n\n    cout &lt;&lt; endl &lt;&lt; \"The elements of the character array are as follows: {\";\n    for (int i = 0; i &lt; strLength; i++) {\n        if (i != strLength - 1) {\n            cout &lt;&lt; \"\\'\" &lt;&lt; charArray[i] &lt;&lt; \"\\', \";\n        } else {\n            cout &lt;&lt; \"\\'\" &lt;&lt; charArray[i] &lt;&lt; \"\\'}\";\n        }   \n    }\n\n    delete [] charArray;\n    return 0;\n}\n<\/code><\/pre>\n<p>Sample Output:<\/p>\n<pre>\nEnter a string: Hello\n\nThe elements of the character array are as follows: {'H', 'e', 'l', 'l', 'o'}\nRUN SUCCESSFUL (total time: 2s)\n<\/pre>\n<p>Remember to use <code>const char *<\/code> in the <code>for<\/code> loop. Otherwise you will get an error as follows:<\/p>\n<pre>\nnewmain.cpp: In function 'int main(int, char**)':\nnewmain.cpp:23:42: error: invalid conversion from 'const char*' to 'char*' [-fpermissive]\n     for (char* iterativeVar = input.c_str(); *iterativeVar; iterativeVar++) {\n<\/pre>\n<p>Do not forget to deallocate the memory using <code>delete<\/code> which was allotted to the character array using <code>new<\/code> operator as shown below:<\/p>\n<pre>\ndelete [] charArray;\n<\/pre>\n<p>Otherwise, you may encounter memory leaks in your program.<\/p>\n<h1>To extract characters which are integers from a string and to store them into an Integer Array:<\/h1>\n<p>The following program should help you:<\/p>\n<pre><code>#include&lt;iostream&gt;\n\nusing namespace std;\n\/\/ Using the namespace std to use string.\n\nint main(int argc, char** argv) {\n    string input;\n    cout &lt;&lt; \"Enter a number: \";\n    cin&gt;&gt;input;     \/\/ To read the input from the user.\n    \n    int strLength = input.length(); \/\/ To compute the length of the string.\n    int * intArray = new int[strLength]; \/\/Dynamic memory allocation\n    int loopVar = 0;\n\n    \/**\n     * The following for loop converts the string into an array.\n    *\/\n    for (const char* iterativeVar = input.c_str(); *iterativeVar; iterativeVar++) {\n        intArray[loopVar] = (*iterativeVar-'0');\n        ++loopVar;\n    }\n\n    cout &lt;&lt; endl &lt;&lt; \"The elements of the integer array are as follows: {\";\n    for (int i = 0; i &lt; strLength; i++) {\n        if (i != strLength - 1) {\n            cout &lt;&lt; intArray[i] &lt;&lt; \", \";\n        } else {\n            cout &lt;&lt;intArray[i]&lt;&lt;\"}\";\n        }   \n    }\n\n    delete [] intArray;\n    return 0;\n}\n<\/code><\/pre>\n<p>Sample Output:<\/p>\n<pre>\nEnter a number: 123456789\n\nThe elements of the integer array are as follows: {1, 2, 3, 4, 5, 6, 7, 8, 9}\nRUN SUCCESSFUL (total time: 4s)\n<\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved how to split a string for equation <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] To extract characters from a string and to store them into a Character Array Simple Method (Using string indexing): #include&lt;iostream&gt; using namespace std; \/\/ Using the namespace std to use string. int main(int argc, char** argv) { string input; cout &lt;&lt; &#8220;Enter a string: &#8220;; cin&gt;&gt;input; \/\/ To read the input from the user. &#8230; <a title=\"[Solved] how to split a string for equation\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-how-to-split-a-string-for-equation\/\" aria-label=\"More on [Solved] how to split a string for equation\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[324,1130,2859,568,362],"class_list":["post-12318","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-calculator","tag-equation","tag-split","tag-string"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>[Solved] how to split a string for equation - JassWeb<\/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:\/\/jassweb.com\/solved\/solved-how-to-split-a-string-for-equation\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] how to split a string for equation - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] To extract characters from a string and to store them into a Character Array Simple Method (Using string indexing): #include&lt;iostream&gt; using namespace std; \/\/ Using the namespace std to use string. int main(int argc, char** argv) { string input; cout &lt;&lt; &quot;Enter a string: &quot;; cin&gt;&gt;input; \/\/ To read the input from the user. ... 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