adventofcode-2020/09/part2

30 lines
707 B
Python
Executable File

#!/usr/bin/python3
import sys
code = []
with open("input") as fh:
for ln in fh:
code.append(int(ln))
def valid(code, o):
for i in range(o - 25, o - 1):
for j in range(i, o):
if code[i] + code[j] == code[o]:
return True
for o in range(25, len(code)):
if not valid(code, o):
target = code[o]
break
for i in range(len(code)):
for j in range(i + 1, len(code)):
s = sum(code[i:j+1])
if s == target:
smallest = min(code[i:j+1])
largest = max(code[i:j+1])
print(smallest + largest)
sys.exit(0)
elif s > target:
break # adding more numbers won't help