S1E16,课后作业动动手1为什么这个程序和小甲鱼的答案不一样？
#include <stdio.h>int main(void)
{
float initial = 10000;
double money_1 = initial,money_2 = initial;
int year = 1;
for (year = 1;money_1 >= money_2;year++)
{
money_1 = initial * 1.1 * year;
money_2 = money_2 * 1.05;
}
printf("%d年后，黑夜的投资额超过小甲鱼！\n",year);
printf("小甲鱼的投资额是：%.2f\n",money_1);
printf("黑夜的投资额是：%.2f",money_2);
return 0;
} money_1 = initial * 1.1 * year;
这句是什么鬼
看了下答案是这样的 a_total += MONEY * 0.1; = > a_total= a_total + MONEY * 0.1
改完之后年份也不对，因为小甲鱼是从 0 开始计数的而你是 1 开始
#include <stdio.h>
int main(void)
{
float initial = 10000;
double money_1 = initial,money_2 = initial;
int year = 1;
for (year = 1;money_1 >= money_2;year++)
{
money_1 += initial * 0.1;
money_2 = money_2 * 1.05;
}
printf("%d年后，黑夜的投资额超过小甲鱼！\n",year - 1);
printf("小甲鱼的投资额是：%.2f\n",money_1);
printf("黑夜的投资额是：%.2f",money_2);
return 0;
}
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