问个算法问题

Question

 int m=0;
 for(int i=1;i<=100;i++)
 {
  if(i%2>0)m+=i;
  else m-=i;
  printf("%d \n",m);
 }

有没有更好的写法

Answer 1

for(int i=1;i<=50;i++)
{
  printf("%d\n-%d\n", i, i);
}

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this ？？

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Visual C++ enthusiast, like network programming and driver development. At present is being engaged in the WinCE/Windows Mobile platform embedded development.

Answer 2

for(int i=1;i<=50;i++)
{
  printf("%d\n-%d\n", i, i);
}

这样其实是自己做了计算过程，再让机器把计算结果显示出来。（这样说也许有些吹毛求疵？）

另外，这篇文章如果有兴趣可以看一下：for循环中i++与++i的效率探究

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Damon Zheng
MSDN Community Support | Feedback to us
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