Sum of n numbers = n(n+1)/2
Traverse the array and add up all the numbers.
Subtract that from the sum of n numbers.
--Anurag
On Mon, Feb 1, 2010 at 4:24 AM, Banoo wrote:
> hi,
> can you help me solve the following problem?
>
> You are given an unsorted list of n-1 distinct integers from the rang
Use the formula for sum of first n natural numbers to get the missing
number.
Thanks & regards,
Sathaiah Dontula
On Mon, Feb 1, 2010 at 4:24 AM, Banoo wrote:
> hi,
> can you help me solve the following problem?
>
> You are given an unsorted list of n-1 distinct integers from the range
> 1 to n.
sum of first N numbers is n(n+1)/2 .
take the sum of given numbers and subtract it from n(n+1)/2.
Thanks
Sri
On Mon, Feb 1, 2010 at 4:24 AM, Banoo wrote:
> hi,
> can you help me solve the following problem?
>
> You are given an unsorted list of n-1 distinct integers from the range
> 1 to n. Wri
You could use a boolean array to mark which numbers you have on the list.
2010/1/31 Banoo
> hi,
> can you help me solve the following problem?
>
> You are given an unsorted list of n-1 distinct integers from the range
> 1 to n. Write a linear-time algorithm to find the missing integer.
>
>
> Tha
hi,
can you help me solve the following problem?
You are given an unsorted list of n-1 distinct integers from the range
1 to n. Write a linear-time algorithm to find the missing integer.
Thanks
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