求三色彩球的颜色。有数量无限的红(Red)绿(Green)蓝(Blue)三种彩球排成一行，每组先为5个红色球，随后3 个绿色，最后为2个蓝色。每个球都有编号，从左到右依次为1,2,3……。输入整数代表编号，求该编号球的颜色。下面是C++代码是实现，正确说法是( )。

pf532450 单选题共个子题

int N, remainder;
cin >> N;
remainder = N % 10; // remainder变量保存余数

if((1 <= remainder) && (remainder<= 5))
    cout << "Red";
else if ((6 <= remainder) && (remainder <= 8))
    cout << "Green";
else if ((remainder == 9) || (remainder == 0))
    cout << "Blue";

将else if ((remainder == 9) || (remainder == 0))修改为else效果相同

将((1 <= remainder) && (remainder<= 5))修改为(remainder <= 5)效果相同

else if ((6 <= remainder) && (remainder <= 8))写法错误，应修改为else if (6 <= remainder <= 8)

根据题意remainder = N % 10应修改为remainder = N / 10

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