#include <iostream>
using namespace std;
int main()
{
//1.定义变量
double e = 1.0f;
double factorial = 1.0f;
int n = 0;
//2.输入数据
cin >> n;
for(int i = 1; i <= n; i++)
{
factorial = factorial * i;
e += 1.0 / factorial;
}
printf("%.10lf",e);
return 0;
}
1092:求出e的值
于 2023-10-04 21:35:13 首次发布