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大家谁有能力帮我呀？

Posted by piaofushi919 at 2004-12-09 21:48:32 on Problem 1003 
#include <stdio.h>
#include <math.h>
void main()
{
	float a,sum;
    int n;
	scanf("%f",&a);
	while (a!=-1){	
		sum=0;
		for(n=2;sum<a;n++){
			sum+=(float)1/n;
		}
    printf("%d card(s)\n",n-2);
    scanf("%d",&a);
	}
}
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