题解 | #计算单位阶跃函数#

#include<stdio.h>
int main()
{
	int t1 = 0; 
	while (scanf("%d", &t1) != EOF)
	{
		if (t1 > 0)
		{
			printf("1\n");
		}
		else if (t1 == 0)
		{
			printf("0.5\n");
		}
		else if (t1 < 0)
		{
			printf("0\n");
		}
	}
	return 0; 
}