Thread: I need help for this time complexity measurment?

HTML Code:

for(int i= 0,j= 0; i< n; i++,j++ )
{

  for(int a= 0,b= 0; a< n; a++,b++ )
   {			
           1 statement goes   here...  
			  
   }
		 
}

Is this O(n2) or O(n4) or what ?? Can any of you convince me about this.

Hope you got what i want.

I didn't know you could put comma-separated statements in the for-loop in Java. When did that creep in?

i and a control the loops, j and b are dependent on them. A nest of two loops is [insert answer here]. Note that using this rule of thumb on loops is only valid - or at best only gives you a lower bound to your time complexity - if the "1 statement goes here" is an O(1) statement.

been in there from day one

I had never previously heard of a 'comma operator' - it's nasty! Thanks for that.