Will the base case be if(n<=2) return n-1;

#1

Will the base case be if(n<=2) return n-1;

#2

for length 1 we have two options 0 or 1
for length 2 we have 3 options
00
01
10

hence correct base will be
if(n<=0)return 0;
if(n<=2) return n+1;

#3

Okayy Sir, Thanks for this.

#4

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