python program for n th fibonacci number. | #coding #learn_programming_1200 #shorts

python program for n th fibonacci number.

Explanation 👇:
In this implementation, we first check if n is less than or equal to 0, in which case we return 0. If n is 1, we return 1. Otherwise, we use an iterative approach to calculate the nth Fibonacci number. We start with the first two numbers in the sequence (0 and 1) and use a loop to calculate the next number in the sequence by adding the previous two. We keep track of the previous two numbers using the variables a and b, and update them accordingly. Finally, we return the value of b, which is the nth Fibonacci number.

Again, you can test the function by changing the value of n to the desired nth Fibonacci number. The program will print the result to the console.

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