[algogeeks] 1 to 1 Lack numbers in a stream .. find the missing number

[Uppala Babu]

 you have been  a long input stream of 1 to 1Lakh number  in which one number is missing and in place of that number -1 is present, input comes in random order, you have to find the number which is missing and also at what position in the input stream this -1 occurs.


Regards
Babu