Merge pull request #2 from Venky-234/csd

C programming tutorial

tutorial1.c

@@ -0,0 +1,16 @@
+// tutorial 1 : simple hello world 
+// write comments like this
+/*
+or you could write comments like this too
+*/
+
+#include<stdio.h>
+
+int main(){
+    printf("hello world\n");
+    printf("byee world\n");
+    // "\n" is a newline character
+    return 0;
+}
+
+// HAPPY CODING !!!

tutorial2.c

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+// tutorial 2 : vaiables
+#include<stdio.h>
+// you can create vaiables this way
+// global variables can be accessed thourught the entire program
+int i = 12;
+float pi = 3.14;
+char a = 'g';
+//
+
+int main(){
+    /* local variables can be used only
+        within the scope in which they are defined in
+     */
+    int local_variable = 34;
+    char alphabet = 'g';
+
+    printf("local vaiables : \n");
+    printf("%d, %c",local_variable, alphabet); // you can print vaibles this way
+    printf("global vaiables : \n");
+    printf("%d, %f, %c",i, pi, a); // you can print vaibles this way
+
+    /*
+    %d is for integers
+    %f is for float
+    %d is for double
+    %c is for char
+    %s is for string
+    */
+   /*
+    char takes one byte
+    integers takes 4 bytes
+    float takes up 4 bytes
+   */
+  return 0;
+}
+
+// HAPPY CODING !!!!