1972142_ac_93ms_40k.cpp

北大大牛代码 1240道题的原代码 超级权威

# include <stdio.h>
# include <math.h>

void output(long n)
{

	if(n==1)
	{
		printf("-");
		return ;
	}
	else
	{
		output(n/3);
		for(int i = n/3; i < n*2/3; i++)
			printf(" ");
		output(n/3);
	}
}

int main()
{
	int n;

	while(scanf("%d",&n)==1)
	{
		output((long)pow(3,n));
		printf("\n");
	}
	return 1;
}