Hangover
Time Limit:1000MS Memory Limit:10000K
Total Submit:17666 Accepted:7808 
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 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 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.
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

1.00
3.71
0.04
5.19
0.00

Sample Output

3 card(s)
61 card(s)
1 card(s)
273 card(s)
Source
Mid-Central USA 2001
Source
Problem Id:1003 User Id:keepRunning
Memory:92K Time:0MS
Language:C++ Result:Accepted
Source 
#include<iostream>
#include<vector>
using namespace std;
int main() ...{
int memory = 10;
int times = 1;
float *prt = new float[10];
int index = 0;//
do ...{
if(index == memory) ...{
times++;
float *prt1 = new float[10 * times];
memory = 10 * times;
for(int i = 0; i < index; i++)
prt1[i] = prt[i];
delete []prt;
prt = prt1;
}
cin >> prt[index];
if(prt[index] == 0.00) break;
if(prt[index] < 5.20 && prt[index] > 0.00) index++;
} while(true);
int n = 2;
float sum = 0;
for(int i = 0; i < index; i++) ...{

while(prt[i] >= sum) ...{
sum = sum + 1.0/n;
n++;
}
cout << n-2 << " card(s)" << endl;
n = 2;
sum = 0;
}
return 0;
} 

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