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我的c 程序：简单

Posted by gardner at 2005-10-09 07:44:25 on Problem 1183 
#include <stdio.h>
void main()
{
	unsigned long a,i;
	scanf("%ld",&a);
	for(i=a;;i--)if((a*a+1)%i==0)break;
	printf("%ld\n",2*a+(a*a+1)/i+i);
}
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