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Aug 27th, 2007

Please help newbie:

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I need to display 1, 1, 2, 3, 5, 8, 13, 21, 34, 55 … I “must” use the “for” …This is what I have but it only counts by two. I don’t want the answer…however can you please give me some clues on the proper way to add the prior two numbers to get the needed sum?

C++ Syntax (Toggle Plain Text)
#include <iostream>
 
using std::cout;
using std::endl;
 
 
//
 int main()
{ 
	int count = 0; 
 
	for ( int count = 1; count <= 55; count = count + 2)
			cout << count << endl;
 
 
	return 0;
}   //end of main function
#include <iostream>

using std::cout;
using std::endl;


//
 int main()
{ 
	int count = 0; 

	for ( int count = 1; count <= 55; count = count + 2)
			cout << count << endl;
	
    
	return 0;
}   //end of main function

Last edited by Ancient Dragon; Aug 27th, 2007 at 8:35 am. Reason: add code tags

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shannonpaul

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Aug 27th, 2007

Re: Please help newbie:

Draw your flow chart first...

iamthwee

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Aug 27th, 2007

Re: Please help newbie:

Have 2 variables outside the for loop. These two variables will contain the first 2 values. Display them. Inside the loop add these two variables which will result in third variable. Display the third variable's value. Once added and displayed, move second variable value to first variable, and move third variable value to second variable. The for loop condition should check for the last value of the third variable.

Hope this clarifies your query!!!!!

sathyam38

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Aug 27th, 2007

Re: Please help newbie:

Click to Expand / Collapse Quote originally posted by shannonpaul ...

I need to display 1, 1, 2, 3, 5, 8, 13, 21, 34, 55 … I “must” use the “for” …This is what I have but it only counts by two. I don’t want the answer…however can you please give me some clues on the proper way to add the prior two numbers to get the needed sum?

#include <iostream>

using std::cout;
using std::endl;

//
int main()
{
int count = 0;

for ( int count = 1; count <= 55; count = count + 2)
cout << count << endl;

return 0;
} //end of main function

Take a look at http://en.wikipedia.org/wiki/Fibonacci_number

SpS

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Aug 27th, 2007

Re: Please help newbie:

eg code :

first = 0;
second = 1;
cout << first;
cout << second;

This should come before the for loop.

inside the for loop :

third = first + second;
count << third;
first = second;
second = third;

the for loop should be

for(;third<=55

check with your code with these changes.....

sathyam38

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Aug 27th, 2007

Re: Please help newbie:

If you learnt how to draw a flow chart you could then use that to convert into code.

Flow charts help to visualise how problems such as these are solved.

iamthwee

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Aug 27th, 2007

Re: Please help newbie:

I still have errors please help?

C++ Syntax (Toggle Plain Text)
#include <iostream>
 
using std::cout;
using std::endl;
 
int main()
 
{ 
 int num1 = 0;
 int num2 = 1;
 
	 cout << num1 << endl;
     cout << num2 << endl;
 
	for(int num = num1 + num2;)
	 cout << num << endl; 
	        num1 = num2;
	        num2 = num;
 
	return 0;
}   //end of main function
#include <iostream>

using std::cout;
using std::endl;

int main()

{ 
 int num1 = 0;
 int num2 = 1;
   
	 cout << num1 << endl;
     cout << num2 << endl;

	for(int num = num1 + num2;)
	 cout << num << endl; 
	        num1 = num2;
	        num2 = num;
         
	return 0;
}   //end of main function

Last edited by Ancient Dragon; Aug 27th, 2007 at 8:36 am. Reason: code tags

shannonpaul

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Aug 27th, 2007

Re: Please help newbie:

some one please help

shannonpaul

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Aug 27th, 2007

Re: Please help newbie:

what are the errors. maybe you need to add braces { and } around lines 21, 22 and 23 to make them all part of the loop.

Ancient Dragon

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Re: Please help newbie:

C++ Syntax (Toggle Plain Text)
#include <iostream> using std::cout;using std::endl;   int main()     {  int num1 = 0; int num2 = 1;   	 cout << num1 << endl;     cout << num2 << endl; 	for(int num = num1 + num2;)	 cout << num << endl; 	        num1 = num2;	        num2 = num;         	   	    	return 0;}   //end of main function#include <iostream>
 
using std::cout;
using std::endl;
 
int main()
 
{ 
 int num1 = 0;
 int num2 = 1;
 
	 cout << num1 << endl;
     cout << num2 << endl;
 
	for(int num = num1 + num2;)
	 cout << num << endl; 
	        num1 = num2;
	        num2 = num;
 
	return 0;
}   //end of main function
#include <iostream> using std::cout;using std::endl;   int main()     {  int num1 = 0; int num2 = 1;   	 cout << num1 << endl;     cout << num2 << endl; 	for(int num = num1 + num2;)	 cout << num << endl; 	        num1 = num2;	        num2 = num;         	   	    	return 0;}   //end of main function#include <iostream>

using std::cout;
using std::endl;

int main()

{ 
 int num1 = 0;
 int num2 = 1;
   
	 cout << num1 << endl;
     cout << num2 << endl;

	for(int num = num1 + num2;)
	 cout << num << endl; 
	        num1 = num2;
	        num2 = num;
         
	return 0;
}   //end of main function

Last edited by stymiee; Aug 27th, 2007 at 12:39 pm. Reason: fixed code tags

shannonpaul

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