What is the difference between null pointer and void pointer
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Answer Posted / siva prasad
A null pointer is a value. It is a special reserved value used to indicate that the pointer is not pointing to anything conceptually.
A void pointer is a type of pointer, void* . It is used to indicate that the storage location pointed to by the pointer has no specific type.
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2) Write a program that will help Air Traffic Control for an airport to view the sequence of flights ready for take-off. The airport can accommodate 10 flights waiting for take-off at any point in time. Each flight has a unique 3 digit numeric identifier. Each time a flight takes-off, Air Traffic Control adds a flight to the waitlist. Each time a flight is added to the waitlist, the list of flights waiting to take-off must be displayed. When a flight is cleared for take-off, Air Traffic Control removes the flight from the waitlist. Each time a flight takes-off, the list of flights waiting to take-off must be displayed. Sequence of take-off is the sequence of addition to the waitlist
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