IRCTC Two Non-Repeating Seat Numbers
IRCTC Two Non-Repeating Seat Numbers
EasyBit Manipulation0% accepted
IRCTC has a list of seat numbers where every seat appears twice except exactly two seats. Find both unique seat numbers.
Approach
Find two non-repeating numbers in array where all others appear twice using XOR.
Input
6
2 3 7 9 11 2
Output
9 15
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