poj1003

Title: Hangover

Description:

How far can you make a stack of cards overhang a table? If you have one card, you can create a maximum overhang of half a card length. (We’re assuming that the cards must be perpendicular to the table.) With two cards you can make the top card overhang the bottom one by half a card length, and the bottom one overhang the table by a third of a card length, for a total maximum overhang of 1/2 + 1/3 = 5/6 card lengths. In general you can make n cards overhang by 1/2 + 1/3 + 1/4 + … + 1/(n + 1) card lengths, where the top card overhangs the second by 1/2, the second overhangs the third by 1/3, the third overhangs the fourth by 1/4, etc., and the bottom card overhangs the table by 1/(n + 1). This is illustrated in the figure below.

Input

The input consists of one or more test cases, followed by a line containing the number 0.00 that signals the end of the input. Each test case is a single line containing a positive floating-point number c whose value is at least 0.01 and at most 5.20; c will contain exactly three digits.


#include <vector>
using namespace std;

int ()
{
    int  i = 0;
 vector<int> is;
 float len = 0, l = 0.00;
    while (cin >> l)
    {
        if (l != 0.00)
      {
            i = 0;
           len = 0;
         while (len < l)
          {
                i++;
             len = len + 1.0 / (i + 1);
           }
            is.push_back(i);
     }
        else
            break;
  }
    for (i = 0; i < is.size(); i++)
  {
        cout << is[i] << " card(s)" << endl;
   }
    return 0;
}

Title: Hangover

Description:

Input

Output

Sample Input

Sample Output

C++ Code:

近期文章

近期评论

标签

热门

文章归档

分类目录

功能