hello world program in c

#include <stdio.h>

int main() {
   printf("Hello, world!");
   return 0;
}#include <stdio.h>
int main() {
   // printf() displays the string inside quotation
   printf("Hello, World!");
   return 0;
}
#include <stdio.h>
int main() {
   // printf() displays the string inside quotation
   printf("Hello, World!");
   return 0;
}echo "Hello, World"