POJ1003

xiaoxiao2021-02-28  85

//

//  main.cpp

//  JudgeTest

//

//  Created by 彭凌群 on 2017/8/3.

//  Copyright © 2017 彭凌群. All rights reserved.

//

#include <iostream>

using namespace std;

void test1003()

{

    float res[300] = {0,0.5},c;

    int i,num = 0;

    for (i = 2;i< 300;i++)

        res[i] = res[i-1] + 1.0/(i+1);

    while(scanf("%f",&c) && c)

    {

        for(i = 1;i < 300;i++)

        {

            if(res[i] >= c)

            {

                printf("%d card(s)\n",i);

                break;

            }

        }

    }

}

int main() {

    test1003();

    return 0;

}

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