Tabulating Fibonacci Numbers

Lets find the $nth$ Fibonacci number using bottom-up tabulation. This approach uses iteration and can essentially be thought of as recursion in reverse.

Pseudocode

Initialize look up table of length n+1
Set first two values to 0 and 1
For i = 2 till n-1:
  lookuptable = lookuptable[i-1] + lookuptable[i-2]
return lookuptable[n];

Tabulated Version #1

Have a look at the tabulated code in C++,