Anyone good at C Programming?

[jiggy2dmax 10+ year member]

I can't figure out this flowchart for my life, anyone care to help.

Here's the problem:

Write a flowchart that will print out all the possilbe twin primes between 2 and 10k. Twin primes are prime numbers that differ by 2.

So far I have:

Start

number=2

factor=2

comparison of number%factor

Anyone care to help me figure this out?

Click to read more...

 

[Hundreth 10+ year member]

I can't figure out this flowchart for my life, anyone care to help.
Here's the problem:

Write a flowchart that will print out all the possilbe twin primes between 2 and 10k. Twin primes are prime numbers that differ by 2.

So far I have:

Start

number=2

factor=2

comparison of number%factor

Anyone care to help me figure this out?

Fill an array with all the primes you find first. Then iterate through the array and keep the ones that differ by two. Shouldn't be too hard.

To find the primes, realize that you only need to divide till the square root of a number, and you only need to divide by the primes until that square root. So your program should be pretty quick if you do it like that.