HDOJ~~ u Calculate e



u Calculate e

Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 65536/32768K (Java/Other)

Total Submission(s) : 11   Accepted Submission(s) : 6

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Problem Description

A simple mathematical formula for e is



where n is allowed to go to infinity. This can actually yield very accurate approximations of e using relatively small values of n.

Output

Output the approximations of e generated by the above formula for the values of n from 0 to 9. The beginning of your output should appear similar to that shown below.

Sample Output

n e
- -----------
0 1
1 2
2 2.5
3 2.666666667
4 2.708333333

代碼：

#include <stdio.#include <stdio.h>
int main()
{
      int i;
      double k=1.0,m=1.0;
      printf("n e\n");    
      printf("- -----------\n");
      printf("0 1\n");    
      printf("1 2\n");
      printf("2 2.5\n");
      for(i=1;i<=9;i++)
      {
         if(i<3) continue;
         m=1.0/i*m;    
         k+=m;
         
         printf("%d %.9lf\n",i,k);
      }
}<pre class="csharp" name="code">