Question

我的名字乔和我遇到了一些关于c ++模数的问题

继承人的问题：

#include <iostream>
#include <string> 
using namespace std;

int main()
{
//In short, this is what i am trying to do:
//divide two numbers, and get both the quotient
//and the remainder
//however, as an example, this below produces a remainder
//of 10 
//110 \ 20 should equal 5 remainder 5
int firstInput =110, secondInput = 20;

int quotient = 0, remainder = 0;

quotient = firstInput / secondInput;

remainder = firstInput % secondInput;// i think the problem is here

cout << "The quotient is " << quotient << " and the remainder is "
    << remainder << endl;


system("pause");
return 0; 
}

基本上它没有正确计算余数。任何帮助当然会非常感激。欢呼声

Answer 1

我得到了正确答案......

The quotient is 5 and the remainder is 10
Press any key to continue . . .

我认为这个错误可能位于键盘和椅子之间...... = P

Answer 2

110 = 5 * 20 + 10

余下的是 10，而不是5

Answer 3

110 = 5 * 20 + 10，因此商为5，余数为10。所以它似乎正确计算。

如果你想得到“休息”0.5，你需要计算((double)firstInput/secondInput) - (firstInput/secondInput)。

Answer 4

如果你将110除以20，你应该得到5的商和10的剩余...因为：

5*20 + 10 = 110

Answer 5

尝试fmod以获得你想要的东西。

c ++中的模数运算符让我发疯

5 个答案: