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# Day Four: Secure Container
import os, strutils, sequtils
let input: string = paramStr(1)
let bounds: seq[int] = map(split(strip(readFile(input)), '-'), parseInt)
var valid, details: int = 0
proc criteria(password: int): bool =
var password: string = $password
for digit in 0 .. 4:
if password[digit] > password[digit+1]:
return false
for digit in 0 .. 4:
if password[digit] == password[digit+1]:
return true
return false
proc extracriteria(password: int): bool =
var password: string = $password
for digit in 0 .. 4:
if password[digit] > password[digit+1]:
return false
for digit in 0 .. 4:
if password[digit] == password[digit+1]:
if digit == 0 or password[digit] != password[digit-1]:
if digit == 4 or password[digit] != password[digit+2]:
return true
return false
for password in bounds[0] .. bounds[1]:
if criteria(password): inc(valid)
for password in bounds[0] .. bounds[1]:
if extracriteria(password): inc(details)
echo valid
echo details
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