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水题,mark#include<stdio.h>
int main()
{
float a=0.0;
while(1)
{
scanf("%f",&a);
float sum=0;
float i=0;
int count=0;
if(a==0.00)
{
break;
}
for(i=2.0;sum<a;i++)
{
sum=sum+1/i;
count++;
}
printf("%d card(s)\n",count);
}
return 0;
}
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