Why we are using cin two times in build data function to take the input from the user .
Insert Data function
Hi @StreamerX
As the input format is such that the input is terminated by -1. Hence we first take input of data outside of while loop. If it enters the loop, then it means that first value was not equal to -1 and so we insert it at tail. Then again take input for next node while checking data!=-1.
Hope it Helps.
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