Online Judge is to compare your output with the desired output specific by the author of the problem.
This problem will expect the output:
Hello World!
So, you should output only the required output by this program:
#include <stdio.h>
int main(){
printf("Hello World");
return 0;
}
The below program looks similar but will not be accepted because of the newline at the end:
#include <stdio.h>
int main(){
printf("Hello World\n");
return 0;
}
Enjoy your time with The Judge!