#include<iostream>
using namespace std;
unsigned int a,i;
int main()
{ cin>>a;
  for(i=a;i>=1;i--)
  if((a*a+1)%i==0)
  break;
  a=2*a+(a*a+1)/i+i;
  cout<<a;
  system("pause");
  return 0;
}

• Re:我晕~ 输入数据要定义为无符号整型~ 否则 WA~ (26) liujq 2009-10-11 11:46:00