Programming Forums > Application Development > C++

Edgar. · Jun 16th, 2006, 12:21 PM

Can you guys tell me why a have the result of 12206, I thought that the result will be the values o billy(16, 2, 77, 40, and 12071)

Quote:

// arrays example
#include <iostream>
using namespace std;

int billy [] = {16, 2, 77, 40, 12071};
int n, result=0;

int main ()
{
for ( n=0 ; n<5 ; n++ )
{
result += billy[n];
}
cout << result;
return 0;
}

I don't want to display the billy,s values I just want to know why a got the results of 12206 thank you guys.

big_k105 · Jun 16th, 2006, 12:29 PM

What you are doing is adding the values of billy(16, 2, 77, 40, and 12071) and that equals 12206, you are getting the results that your program is suppose to give you if you are getting 12206

Mjordan2nd · Jun 16th, 2006, 12:34 PM

(Toggle Plain Text)

  for ( n=0 ; n<5 ; n++ )
  {
	  result += billy[n];
  }

What this part is doing is:

result = result + billy[n];

If result is originally 0, then after the first iteration of the loop result will be:

0 + billy[0], or 0 + 16.

After the second iteration it will be:

result = result + billy[1] or result = 16 + 2

because result retains the value was previously assigned to it, which in this case was 16. It repeats that process over and over until it adds everything in the array up.

Edgar. · Jun 16th, 2006, 12:39 PM

huuuu, got it, thank you guys, you are the best.

imagikricei · Jun 19th, 2006, 5:18 PM

indeed.

Jimbo · Jun 19th, 2006, 6:18 PM

indeedydo. Please keep your posts contributory to the threads.

Oh, and change the avatar please.

Quote:

Originally Posted by Forum Rules

No animations - Regardless of how small the animation is. Some people find animations distracting when reading a thread. Because of the issues that would arise if we allowed some small animations but not others, the policy is no animations at all.

JamesCEdmonds · Jun 19th, 2006, 10:20 PM

http://www.cplusplus.com/doc/tutorial/arrays.html

frankish · Jun 20th, 2006, 5:43 PM

What was the point of this thread?

DaWei · Jun 20th, 2006, 6:01 PM

The point of the thread was that Edgar had a problem understanding some things about arrays. The point of a number of the responses (including yours) is anyone's guess. The point of my response (similar to Jim's) is making a point about points in response to your response. I actually thought I might puke in my shirtpocket to see a link reproducing the OP's code.

Jun 16th, 2006, 12:29 PM	#2
big_k105 PFO Founder Join Date: Mar 2004 Location: Fargo, ND Posts: 1,671 Rep Power: 10	What you are doing is adding the values of billy(16, 2, 77, 40, and 12071) and that equals 12206, you are getting the results that your program is suppose to give you if you are getting 12206 __________________ BIG K aka Kyle Programming Forums Kyle K Online Please do not PM or email me programming questions. Post them in the forums instead.

Jun 16th, 2006, 12:34 PM	#3
Mjordan2nd The Supreme Ruler Join Date: May 2004 Location: Houston Posts: 1,476 Rep Power: 6	(Toggle Plain Text) for ( n=0 ; n<5 ; n++ ) { result += billy[n]; } for ( n=0 ; n<5 ; n++ ) { result += billy[n]; } What this part is doing is: result = result + billy[n]; If result is originally 0, then after the first iteration of the loop result will be: 0 + billy[0], or 0 + 16. After the second iteration it will be: result = result + billy[1] or result = 16 + 2 because result retains the value was previously assigned to it, which in this case was 16. It repeats that process over and over until it adds everything in the array up. __________________ "Every gun that is made, every warship launched, every rocket signifies, in the final sense, a theft from those who hunger and are not fed, from those who are cold and are not clothed. The world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientists, the hopes of its children." - Dwight D. Eisenhower

Jun 20th, 2006, 6:01 PM	#9
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	The point of the thread was that Edgar had a problem understanding some things about arrays. The point of a number of the responses (including yours) is anyone's guess. The point of my response (similar to Jim's) is making a point about points in response to your response. I actually thought I might puke in my shirtpocket to see a link reproducing the OP's code. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

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Jun 16th, 2006, 12:39 PM	#4
Edgar. Newbie Join Date: Jun 2006 Location: Bath Room Posts: 11 Rep Power: 0	huuuu, got it, thank you guys, you are the best.

Jun 19th, 2006, 5:18 PM	#5
imagikricei Newbie Join Date: Jun 2006 Location: texas Posts: 22 Rep Power: 0	indeed.

Jun 19th, 2006, 10:20 PM	#7
JamesCEdmonds Newbie Join Date: May 2006 Posts: 19 Rep Power: 0	http://www.cplusplus.com/doc/tutorial/arrays.html

Jun 20th, 2006, 5:43 PM	#8
frankish Hobbyist Programmer Join Date: Oct 2005 Location: Ohio Posts: 177 Rep Power: 0	What was the point of this thread?

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Programming Forums > Application Development > C++

Help with array