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Find last two digits of Nth Fibonacci number

Problem
Examples
Example 1
Example 2
Solution
Method 1 — Naive Fibonacci
Intuition
Approach
Code
Complexity
Method 2 — Iterative modulo 100
Intuition
Approach
Code
Complexity
Method 3 — Pisano-cycle reduction (period 300)
Intuition
Approach
Code
Complexity

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