Fibosum wala question

#1

187446 ismein kya wrong hai samjh nhi aa rha pliz help

#2

please send code link for me to check whats wrong

#3

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#4

please refer code mai samjh kunga

#5

@sgdon142 use matrix exponentiation for calculating Fibonacci sum upto n.
P.S Sum of Fibonacci upto n is : F(N+2)-1

#6

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