这个循环执行了多少次 [英] how many times this loop executes

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本文介绍了这个循环执行了多少次的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

hi
我想计算下面代码的顺序。但我的问题是我不知道循环执行的次数是多少次?

可以告诉我这个循环执行了多少次?

谢谢

  while (n> 0)
{
r = n%m;
n = m;
m = r;
}

解决方案

没有人能告诉你:它取决于输入值。

如果n == 0,它将运行0次。

如果n == 1000且m == 10,它将在第二次传递时以零除零异常失败。



我们无法告诉你更糟糕的代码失败! :笑:


引用:

可以告诉我这个循环执行了多少次? / blockquote>在幸运场景中,以下函数告诉您:

  int  how_many_times( int  n, int  m)
{
int count = 0
while (n> 0)
{
r = n%m;
n = m;
m = r;
++ count;
}
返回计数;
}


hi i want to calculate the order of below code . but my problem is that i don't know how many times the loop executes in worse case?
can any one tell me that how many times this loop execute?
thanks

while(n>0)
{
r=n%m;
n=m;
m=r;
}

解决方案

Nobody can tell you: it's dependent on the input values.
If n == 0, it will run 0 times.
if n == 1000 and m == 10, it will fail with a divide by zero exception on the second pass.

We can't tell you a worse case for code that fails! :laugh:


Quote:

can any one tell me that how many times this loop execute?

On lucky scenarios, the following function tells you:

int how_many_times(int n, int m)
{
  int count = 0:
  while(n>0)
  {
    r=n%m;
    n=m;
    m=r;
    ++count;
  }
  return count;
}


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