30 lines
478 B
C++
30 lines
478 B
C++
#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <cmath>
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using namespace std;
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double pool[300];
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int main()
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{
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pool[1]=0.5;
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for(int i=2;i<300;i++)
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{
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pool[i]=pool[i-1]+1.0/(i+1);
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}
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double inp;
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while(scanf("%lf",&inp)==1&&inp>0.01)
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{
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for(int i=1;i<300;i++)
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{
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if(pool[i]>inp)
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{
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printf("%d card(s)\n",i);
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break;
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}
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}
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}
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return 0;
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}
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