Question

hi what do they mean by
while(n>1) {
if (n is even)
n:=n/2
else
n:=3*n+1
}

Answer 1

@Opcode

Answer 2

while (n > 1){
(n is even)
n : n /2
else
n :=3*n+1
}

Answer 3

@Hero

Answer 4

@ZeHanz

Answer 5

actually i want to know :=

Answer 6

If you have a number n that is larger than 1, do the following:
As long it is even (i.e. it has at least one factor 2), then divide it by 2.
So all factors 2 are divided out.
After this, and if this n without any factors 2 is still larger than 1, multiply it with 3 and add 1.

Let's try a number, say n=20 (=2*2*5)
The two factors 2 are removed, leaving n=5.
Now this becomes 16. (3*5+1).

Another number: n=2*2*2*3*5=120.
This is converted to 15.
Then it becomes 46.

I have no idea what is the use for this...

Answer 7

n is assigned to

Answer 8

C derived languages use = to assign, and == to compare. Pascal derived languages use := for assignment and = for comparison.