Poj1003 Hangover, poj1003hangover

Poj1003 Hangover, poj1003hangover

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 makeNCards 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 tha 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 already strated 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.

Output

For each test case, output the minimum number of cards necessary to achieve an overhang of at least c card lengths. Use the exact output format shown in the examples.

Sample Input

1.003.710.045.190.00          

Sample Output

3 card(s)61 card(s)1 card(s)273 card(s)

import java.util.*;   public class Main {       public static void main(String[] args) {           Scanner cin = new Scanner(System.in);           String str;           int maxCardNum = 0;           while(cin.hasNext())           {               str = cin.nextLine();               if(str.equals("0.00"))                   break;               float len = Float.valueOf(str).floatValue();               maxCardNum = getCardNum(len);               System.out.println(maxCardNum + " card(s)");           }         }              private static int getCardNum(float len)       {           float value = 0;           int index = 2;             while (value < len)           {               value += 1.0/index;               index++;           }                          return index-2;       }     }  

 

ACM Hangover (Peking University ACM1003) teaches C Language

Double format control should use % lf instead of % ld

POJ 1003, simple code error correction

Poj.org/problem? Id = 1003
Hangover
Not this question.