P1422 刷题记录

月考炸了，没心情写题解了。兄弟们直接看代码吧。

代码如下（C）:

#include <stdio.h>

int main(void)
{
	int ekwh = 0;
	float qian;
	scanf("%d", &ekwh);

	if (ekwh <= 150) {
		qian = 0.4463 * ekwh;
		printf("%.1f\n", qian);
	} else if(ekwh > 150 && ekwh <= 400) {
		qian = 0.4463 * 150 + 0.4663 * (ekwh - 150);
		printf("%.1f\n", qian);
	} else if(ekwh > 400) {
		qian = 0.4463 * 150 + 0.4663 * 250 + 0.5663 * (ekwh - 400);
		printf("%.1f\n", qian);
	} else {
		printf("\n");
	}

	return 0;
}