HsimWong · March 19, 2022 06:08
diff --git a/dukang.c b/dukang.c
 #include<stdio.h>

 int main(){
    printf("hello world, I'm Dukang.\n");
    return 0;                                                                                        
 }
	#include<stdio.h>

	int main(){
	printf("hello world, I'm Dukang.\n");
	return 0;
	}