c++求助

lyk31415 @ 2023-12-09 22:54:21

#include <iostream>
using namespace std;

int main()
{
    long long b;
    double a,c;
    cin>>a;
    b=a/1;
    c=(a-b)*10;
    cout<<c<<"."<<b;
    return 0;
}

by sugawara @ 2023-12-09 23:11:05

试试有效位数为4的小数呢？多了点，其实可以拿字符串的

by sugawara @ 2023-12-09 23:11:43

字符串主要的就是输入进去反着输出

by chenshihan666 @ 2023-12-15 22:32:14

你能得40分算你幸运