Not able to find error

#1

for this problem

https://codeforces.com/problemset/problem/1294/C

i am getting wrong ans
solution at :

Approch is same as discussed in the lecture .
please comment in my code , where it is getting wrong .

#2

Hey,i don’t think your code is considering the case that 2,4,8 is also possible,below is my code.It is accepted
https://codeforces.com/contest/1294/submission/78627308

#3

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