TLE In one test case out of two

#1
#2

hello @ambuj_0909,
value of n can be upto 1000 000 000 and we can not declare array of that big size due to memory constraint.

so use top down dp and map .
use 0 to distinguish between visited and non visited state. ( map contains by default 0 value so no need to intialise ).

#3

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