杭电-PID1012-u Calculate e

杭电-PID1012-u Calculate e

#include <stdio.h>
#include <stdlib.h>

int main()
{
    printf("n e\n- -----------\n0 1\n1 2\n2 2.5\n");
    double num = 2.5;
    double base = 2;
    int i = 3;
    while (i < 10)
    {
        base = base * i;
        num = num + 1 / base;
        printf("%d %.9f\n", i, num);
        i++;
    }
    return 0;
}