Tip 1 : Do practice as much as you can
Tip 2 : Work on your communication skills
Tip 1 : It should look presentable
Tip 2 : Skills should be mentioned properly
As this value might be large, print it modulo 10^9 + 7
Semaphores are integer variables that are used to solve the critical section problem by using two atomic operations, wait and signal that are used for process synchronization.
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Which SQL keyword removes duplicate records from a result set?