{"id":145101,"date":"2025-05-20T15:08:29","date_gmt":"2025-05-20T09:38:29","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=145101"},"modified":"2025-05-20T15:08:29","modified_gmt":"2025-05-20T09:38:29","slug":"local-and-global-variables-in-c","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/local-and-global-variables-in-c\/","title":{"rendered":"Local and Global Variables in C"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Local and global variables \r\n#include&lt;stdio.h&gt;\r\n#include&lt;conio.h&gt;\r\nint main()\r\n{  \r\n    system(\"cls\");\r\n      int a=10;\r\n      {\r\n            int a=20;\r\n         { \r\n              int a=30;\r\n             {\r\n                       int a=40;\r\n                       printf(\"\\n %d\",a);\r\n             }\r\n             printf(\"\\n %d\",a);\r\n         }\r\n         printf(\"\\n %d\",a);\r\n      }\r\n      printf(\"\\n %d\",a);\r\n    return 0;  \r\n}\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\/\/ int a=10;\r\n\/\/ void abc();\r\n\/\/ void xyz();\r\n\/\/ int main()\r\n\/\/ {\r\n\/\/     system(\"cls\");\r\n\/\/     int a=100;                                 \/\/ a=100\r\n\/\/     abc();\r\n\/\/     printf(\"\\n%d\",a);                        \/\/100         3\r\n\/\/     return 0;\r\n\/\/ }\r\n\/\/ void abc()\r\n\/\/ {\r\n\/\/      a=a+20;    \/\/ a=30\r\n\/\/      xyz();\r\n\/\/      printf(\"\\n%d\",a);              \/\/ 30                    2\r\n\/\/ }\r\n\/\/ void xyz()\r\n\/\/ {\r\n\/\/       int a=500;                      \/\/ a=550\r\n\/\/       a=a-50;\r\n\/\/       printf(\"\\n%d\",a);                \/\/ 450              1 \r\n\/\/       a=a+100;\r\n\/\/ }\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\/\/int a=100;\r\n\/\/void display();\r\n\/\/ int main()\r\n\/\/ {\r\n\/\/      system(\"cls\");\r\n     \r\n\/\/      {\r\n\/\/           int a=500;\r\n\/\/            a=a+10;   \r\n\/\/            printf(\"%d\",a); \/\/510\r\n\/\/      }\r\n\/\/      printf(\"\\n inside main: %d\",a); \/\/100\r\n    \r\n\/\/     return 0;\r\n\/\/ }\r\n\/\/ void display()\r\n\/\/ {\r\n\/\/      printf(\"\\n inside display: %d\",a);\r\n\/\/ }<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 \/\/ Local and global variables #include&lt;stdio.h&gt; #include&lt;conio.h&gt; int main() { system(&#8220;cls&#8221;); int a=10; { int a=20; { int a=30; { int a=40; printf(&#8220;\\n %d&#8221;,a); } printf(&#8220;\\n %d&#8221;,a); } printf(&#8220;\\n %d&#8221;,a); } printf(&#8220;\\n&#46;&#46;&#46;<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19488],"tags":[29547,34229,23914,28585,29219,29218,34230,29944],"class_list":["post-145101","post","type-post","status-publish","format-standard","hentry","category-c-programming","tag-c-local-and-global-variables","tag-c-program-on-local-and-global-variables","tag-c-programming","tag-c-tutorial","tag-c-practical","tag-c-program","tag-local-and-global-variables","tag-local-and-global-variables-in-c"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Local and Global Variables in C - DataFlair<\/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:\/\/data-flair.training\/blogs\/local-and-global-variables-in-c\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Local and Global Variables in C - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 \/\/ Local and global variables #include&lt;stdio.h&gt; #include&lt;conio.h&gt; int main() { system(&quot;cls&quot;); int a=10; { int a=20; { int a=30; { int a=40; printf(&quot;n %d&quot;,a); } printf(&quot;n %d&quot;,a); } printf(&quot;n %d&quot;,a); } printf(&quot;n&#046;&#046;&#046;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/local-and-global-variables-in-c\/\" \/>\n<meta property=\"og:site_name\" content=\"DataFlair\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataFlairWS\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-20T09:38:29+00:00\" \/>\n<meta name=\"author\" content=\"DataFlair Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:site\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DataFlair Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Local and Global Variables in C - DataFlair","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:\/\/data-flair.training\/blogs\/local-and-global-variables-in-c\/","og_locale":"en_US","og_type":"article","og_title":"Local and Global Variables in C - DataFlair","og_description":"Program 1 \/\/ Local and global variables #include&lt;stdio.h&gt; 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