Expression 5: "g" left parenthesis, "x" , right parenthesis equals left brace, left parenthesis, "a" left bracket, "x" minus 1 , right bracket plus "a" left bracket, "x" , right bracket plus "a" left bracket, "x" plus 1 , right bracket , right parenthesis greater than left parenthesis, "a" left bracket, "x" minus 2 , right bracket plus "a" left bracket, "x" minus 1 , right bracket plus "a" left bracket, "x" , right bracket , right parenthesis : 0 , 1 , right bracegx=ax−1+ax+ax+1>ax−2+ax−1+ax:0,1
5
IF the sum of (x-1,x,x+1) is greater than the sum of (x-2,x-1,x), THEN: Output 1. ELSE: Output 0.
6
Expression 7: Start sum from "n" equals 1 to length left parenthesis, "a" , right parenthesis , end sum, "f" left parenthesis, "n" , right parenthesislengtha∑n=1fn
equals=
11391139
7
Summation of all outputs for part 1
8
Expression 9: Start sum from "n" equals 3 to length left parenthesis, "a" , right parenthesis , end sum, "g" left parenthesis, "n" , right parenthesislengtha∑n=3gn