题解 | 牛牛的快递

//用了点强制类型转换
#include <stdio.h>

int main() {
	float weight;
	char a;
	scanf("%f %c", &weight, &a);
	if (weight > 1 && a == 'y') {
		if (weight - 1 - (int)(weight - 1) < 1&&weight - 1 - (int)(weight - 1) >0)
			printf("%d", (int)(weight - 1) + 26);
		else
			printf("%d", (int)(weight - 1) + 25);
	}

	else if (weight <= 1 && a == 'y')
		printf("25");
	else if (weight > 1 && a == 'n') {
		if (weight - 1 - (int)(weight - 1) < 1&&weight - 1 - (int)(weight - 1) >0)
			printf("%d", (int)(weight - 1) + 21);
		else
			printf("%d", (int)(weight - 1) + 20);
	} else if (weight <= 1 && a == 'n')
		printf("20");
	return 0;
}