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C Program without main() function

We can write c program without using main() function. To do so, we need to use #define preprocessor directive.

Let's see a simple program to print "hello" without main() function.

#include<stdio.h>  
 #define start main  
void start() {  
   printf("Hello");  
} 

Output:

Hello

Next TopicMatrix multiplication in C

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C program without main

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