Given the following code, what is its complexity for a list of length n. You nee

Given the following code, what is its complexity for a list of length n. You nee

Given the following code, what is its complexity for a list of length n. You need to show working but not a formula. Ignore commented lines with โ€#โ€.
function nthFib(n) {
#let cache = {}; //Start here function recurse(num) {
#if(cache[num]) :
#return cache[num] //second step if(num === 0 || num == 1) return 1
let result =recurse(num-1)+recurse(num-2) # cache[num] =result; //final step
returnresult;
}
returnrecurse(n);
}

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