HDOJ1012 u Calculate e

Problem : 1012 ( u Calculate e )     Judge Status : Accepted
RunId : 7741966    Language : C    Author : qq1203456195
Code Render Status : Rendered By HDOJ C Code Render Version 0.01 Beta

#include<stdio.h>
void main()
{
    int n=0;
    double e=1,t=1;//t记录阶乘
    char str[65];
    printf("n e\n");
    printf("- -----------\n");
    while(n<=9)
    {
        printf("%d ",n);
        switch(n)
        {
        case 0:
        case 1:
            printf("%.0lf\n",e);
            break;
        case 2:
            printf("%.1lf\n",e);
            break;
        default:
            printf("%.9lf\n",e);
            break;
        }        
        t*=++n;
        e += 1.0/t;
    }
}