package main

import (
	"fmt"
	"io/ioutil"
	"sort"
	"strconv"
	"strings"
)

func main() {
	d, _ := ioutil.ReadFile("input")
	strings := strings.Split(string(d), "\n")
	bad := 0
	var ints []int
	done := false
	for _, s := range strings {
		i, err := strconv.Atoi(s)
		if err == nil {
			ints = append(ints, i)
		}
	}
	for i, _ := range ints {
		if !((i + 26) > len(ints)) {
			slice := ints[i : i+25]
			sums := make(map[int]struct{})
			for _, n := range slice {
				for _, n2 := range slice {
					if n != n2 {
						sums[n+n2] = struct{}{}
					}
				}
			}
			bad = ints[i+25]
			has := false
			for i, _ := range sums {
				if bad == i {
					has = true
				}
			}
			if has == false {
				fmt.Println("Part 1:", bad)
				break
				done = true
			}
			if done == true {
				break
			}
		}
		if done == true {
			break
		}
	}
	// Part 2: let's just brute force this
	l := 2
	for {
		for x := 0; x < len(ints); x += 1 {
			sl := ints[x : x+l]
			total := 0
			for _, digit := range sl {
				total += digit
			}
			if total == bad {
				sort.Ints(sl) // a bad bodge
				fmt.Printf("Part 2: %d\n", sl[0]+sl[len(sl)-1:][0])
				fmt.Println(sl)
				return
			}
		}
		l++
	}
}