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ffb4d5f95a
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bd6707e814
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@ -1,148 +0,0 @@
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package day08
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type Solver struct {
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input [][]byte
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tallestFromLeft [][]int8
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tallestFromRight [][]int8
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tallestFromTop [][]int8
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tallestFromBottom [][]int8
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}
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func (s *Solver) ParseInput(input []string) {
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s.input = make([][]byte, len(input))
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for i, line := range input {
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s.input[i] = []byte(line)
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for x := 0; x < len(s.input[i]); x++ {
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s.input[i][x] -= '0'
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}
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}
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}
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func max(a, b int8) int8 {
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if a > b {
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return a
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} else {
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return b
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}
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}
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func (s *Solver) SolvePart1() any {
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s.tallestFromLeft = make([][]int8, len(s.input))
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for r := 0; r < len(s.input); r++ {
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s.tallestFromLeft[r] = make([]int8, len(s.input))
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for c := 0; c < len(s.input); c++ {
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if c == 0 {
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s.tallestFromLeft[r][c] = -1
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} else {
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s.tallestFromLeft[r][c] = max(s.tallestFromLeft[r][c-1], int8(s.input[r][c-1]))
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}
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}
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}
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//fmt.Println(s.tallestFromLeft)
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s.tallestFromRight = make([][]int8, len(s.input))
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for r := 0; r < len(s.input); r++ {
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s.tallestFromRight[r] = make([]int8, len(s.input))
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for c := len(s.input) - 1; c >= 0; c-- {
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if c == len(s.input)-1 {
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s.tallestFromRight[r][c] = -1
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} else {
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s.tallestFromRight[r][c] = max(s.tallestFromRight[r][c+1], int8(s.input[r][c+1]))
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}
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}
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}
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//fmt.Println(s.tallestFromRight)
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s.tallestFromBottom = make([][]int8, len(s.input))
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for r := 0; r < len(s.input); r++ {
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s.tallestFromBottom[r] = make([]int8, len(s.input))
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}
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for c := 0; c < len(s.input); c++ {
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for r := len(s.input) - 1; r >= 0; r-- {
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if r == len(s.input)-1 {
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s.tallestFromBottom[r][c] = -1
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} else {
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s.tallestFromBottom[r][c] = max(s.tallestFromBottom[r+1][c], int8(s.input[r+1][c]))
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}
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}
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}
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||||
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//fmt.Println(s.tallestFromBottom)
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s.tallestFromTop = make([][]int8, len(s.input))
|
||||
for r := 0; r < len(s.input); r++ {
|
||||
s.tallestFromTop[r] = make([]int8, len(s.input))
|
||||
}
|
||||
for c := 0; c < len(s.input); c++ {
|
||||
for r := 0; r < len(s.input); r++ {
|
||||
if r == 0 {
|
||||
s.tallestFromTop[r][c] = -1
|
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} else {
|
||||
s.tallestFromTop[r][c] = max(s.tallestFromTop[r-1][c], int8(s.input[r-1][c]))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//fmt.Println(s.tallestFromTop)
|
||||
|
||||
var total int
|
||||
for r := 0; r < len(s.input); r++ {
|
||||
for c := 0; c < len(s.input[0]); c++ {
|
||||
if s.isVisible(r, c) {
|
||||
total += 1
|
||||
}
|
||||
}
|
||||
}
|
||||
return total
|
||||
}
|
||||
|
||||
func (s *Solver) isVisible(r, c int) bool {
|
||||
v := int8(s.input[r][c])
|
||||
|
||||
return v > s.tallestFromTop[r][c] || v > s.tallestFromBottom[r][c] || v > s.tallestFromLeft[r][c] || v > s.tallestFromRight[r][c]
|
||||
}
|
||||
|
||||
type D struct {
|
||||
dr, dc int
|
||||
}
|
||||
|
||||
func (s *Solver) SolvePart2() any {
|
||||
ds := []D{{-1, 0}, {1, 0}, {0, 1}, {0, -1}}
|
||||
|
||||
bestViewingDistance := 0
|
||||
|
||||
for r := 0; r < len(s.input); r++ {
|
||||
for c := 0; c < len(s.input); c++ {
|
||||
viewingDistance := 1
|
||||
|
||||
for _, d := range ds {
|
||||
viewingDistance *= s.getViewingDistance(r, c, d)
|
||||
}
|
||||
|
||||
if viewingDistance > bestViewingDistance {
|
||||
bestViewingDistance = viewingDistance
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return bestViewingDistance
|
||||
}
|
||||
|
||||
func (s *Solver) getViewingDistance(r, c int, d D) int {
|
||||
result := 0
|
||||
|
||||
v := s.input[r][c]
|
||||
for {
|
||||
r += d.dr
|
||||
c += d.dc
|
||||
if r < 0 || r == len(s.input) || c < 0 || c == len(s.input) {
|
||||
break
|
||||
}
|
||||
result++
|
||||
if s.input[r][c] >= v {
|
||||
break
|
||||
}
|
||||
}
|
||||
return result
|
||||
}
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
30373
|
||||
25512
|
||||
65332
|
||||
33549
|
||||
35390
|
||||
2000
day09/prod.in.txt
2000
day09/prod.in.txt
File diff suppressed because it is too large
Load Diff
|
|
@ -1,169 +0,0 @@
|
|||
package day09
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
type Solver struct {
|
||||
moves []Move
|
||||
}
|
||||
|
||||
type Location struct {
|
||||
r, c int
|
||||
}
|
||||
|
||||
func (l *Location) String() string {
|
||||
return fmt.Sprintf("[%3d,%3d]", l.r, l.c)
|
||||
}
|
||||
|
||||
type Move struct {
|
||||
direction string
|
||||
count int
|
||||
}
|
||||
|
||||
func (s *Solver) ParseInput(input []string) {
|
||||
s.moves = make([]Move, len(input))
|
||||
for i, l := range input {
|
||||
x := strings.Split(l, " ")
|
||||
v, _ := strconv.Atoi(x[1])
|
||||
s.moves[i] = Move{x[0], v}
|
||||
}
|
||||
//fmt.Println(s.moves)
|
||||
}
|
||||
|
||||
func sign(i int) int {
|
||||
if i == 0 {
|
||||
return 0
|
||||
} else if i > 0 {
|
||||
return 1
|
||||
} else {
|
||||
return -1
|
||||
}
|
||||
}
|
||||
|
||||
func (s *Solver) SolvePart1() any {
|
||||
headLoc := Location{0, 0}
|
||||
tailLoc := Location{0, 0}
|
||||
|
||||
locMap := make(map[Location]bool)
|
||||
locMap[tailLoc] = true
|
||||
|
||||
for _, m := range s.moves {
|
||||
for i := 0; i < m.count; i++ {
|
||||
switch m.direction {
|
||||
case "R":
|
||||
headLoc = Location{headLoc.r, headLoc.c + 1}
|
||||
case "L":
|
||||
headLoc = Location{headLoc.r, headLoc.c - 1}
|
||||
case "U":
|
||||
headLoc = Location{headLoc.r + 1, headLoc.c}
|
||||
case "D":
|
||||
headLoc = Location{headLoc.r - 1, headLoc.c}
|
||||
}
|
||||
dr, dc := tailLoc.r-headLoc.r, tailLoc.c-headLoc.c
|
||||
if math.Abs(float64(dr)) > 1 || math.Abs(float64(dc)) > 1 {
|
||||
tailLoc = Location{tailLoc.r - sign(dr), tailLoc.c - sign(dc)}
|
||||
}
|
||||
|
||||
locMap[tailLoc] = true
|
||||
//fmt.Printf("dr: %d, dc: %d\n", dr, dc)
|
||||
//fmt.Printf("H: %v, T: %v\n", headLoc, tailLoc)
|
||||
}
|
||||
}
|
||||
|
||||
return len(locMap)
|
||||
}
|
||||
|
||||
func (s *Solver) SolvePart2() any {
|
||||
ropeLocs := make([]*Location, 10)
|
||||
for i := 0; i < len(ropeLocs); i++ {
|
||||
ropeLocs[i] = &Location{}
|
||||
}
|
||||
|
||||
locMap := make(map[Location]bool)
|
||||
locMap[*ropeLocs[len(ropeLocs)-1]] = true
|
||||
|
||||
//fmt.Printf("%s\n", ropeLocs)
|
||||
|
||||
for _, m := range s.moves {
|
||||
for i := 0; i < m.count; i++ {
|
||||
switch m.direction {
|
||||
case "R":
|
||||
ropeLocs[0].c++
|
||||
case "L":
|
||||
ropeLocs[0].c--
|
||||
case "U":
|
||||
ropeLocs[0].r--
|
||||
case "D":
|
||||
ropeLocs[0].r++
|
||||
}
|
||||
|
||||
for ropeSegmentInd := 1; ropeSegmentInd < len(ropeLocs); ropeSegmentInd++ {
|
||||
this := ropeLocs[ropeSegmentInd]
|
||||
parent := ropeLocs[ropeSegmentInd-1]
|
||||
|
||||
dr, dc := this.r-parent.r, this.c-parent.c
|
||||
|
||||
if math.Abs(float64(dr)) > 1 || math.Abs(float64(dc)) > 1 {
|
||||
this.r -= sign(dr)
|
||||
this.c -= sign(dc)
|
||||
}
|
||||
}
|
||||
locMap[*ropeLocs[len(ropeLocs)-1]] = true
|
||||
//fmt.Printf("dr: %d, dc: %d\n", dr, dc)
|
||||
}
|
||||
//printRope(ropeLocs)
|
||||
//fmt.Printf("%s\n", ropeLocs)
|
||||
}
|
||||
|
||||
return len(locMap)
|
||||
}
|
||||
|
||||
func printRope(locs []*Location) {
|
||||
//minC, maxC, minR, maxR := -15, 15, -15, 15
|
||||
minC, maxC, minR, maxR := 0, 0, 0, 0
|
||||
|
||||
for _, l := range locs {
|
||||
if l.c < minC {
|
||||
minC = l.c
|
||||
}
|
||||
if l.c > maxC {
|
||||
maxC = l.c
|
||||
}
|
||||
if l.r < minR {
|
||||
minR = l.r
|
||||
}
|
||||
if l.r > maxR {
|
||||
maxR = l.r
|
||||
}
|
||||
}
|
||||
|
||||
//println(maxR, minR, maxC, minC)
|
||||
|
||||
field := make([][]byte, maxR-minR+1)
|
||||
for i := 0; i < len(field); i++ {
|
||||
field[i] = make([]byte, maxC-minC+1)
|
||||
for j := 0; j < len(field[i]); j++ {
|
||||
field[i][j] = '.'
|
||||
}
|
||||
}
|
||||
|
||||
field[-minR][-minC] = 's'
|
||||
|
||||
for i := len(locs) - 1; i >= 0; i-- {
|
||||
loc := locs[i]
|
||||
if i == 0 {
|
||||
field[loc.r-minR][loc.c-minC] = 'H'
|
||||
} else {
|
||||
field[loc.r-minR][loc.c-minC] = '0' + byte(i)
|
||||
}
|
||||
}
|
||||
|
||||
for _, l := range field {
|
||||
fmt.Println(string(l))
|
||||
}
|
||||
fmt.Println()
|
||||
}
|
||||
|
|
@ -1,8 +0,0 @@
|
|||
R 5
|
||||
U 8
|
||||
L 8
|
||||
D 3
|
||||
R 17
|
||||
D 10
|
||||
L 25
|
||||
U 20
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
package day01
|
||||
package day1
|
||||
|
||||
import (
|
||||
"sort"
|
||||
|
|
@ -1,146 +0,0 @@
|
|||
noop
|
||||
noop
|
||||
addx 15
|
||||
addx -10
|
||||
noop
|
||||
noop
|
||||
addx 3
|
||||
noop
|
||||
noop
|
||||
addx 7
|
||||
addx 1
|
||||
addx 4
|
||||
addx -1
|
||||
addx 1
|
||||
addx 5
|
||||
addx 1
|
||||
noop
|
||||
noop
|
||||
addx 5
|
||||
addx -1
|
||||
noop
|
||||
addx 3
|
||||
noop
|
||||
addx 3
|
||||
addx -38
|
||||
noop
|
||||
addx 3
|
||||
addx 2
|
||||
addx 5
|
||||
addx 2
|
||||
addx 26
|
||||
addx -21
|
||||
addx -2
|
||||
addx 5
|
||||
addx 2
|
||||
addx -14
|
||||
addx 15
|
||||
noop
|
||||
addx 7
|
||||
noop
|
||||
addx 2
|
||||
addx -22
|
||||
addx 23
|
||||
addx 2
|
||||
addx 5
|
||||
addx -40
|
||||
noop
|
||||
noop
|
||||
addx 3
|
||||
addx 2
|
||||
noop
|
||||
addx 24
|
||||
addx -19
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx 5
|
||||
addx 5
|
||||
addx 2
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx 7
|
||||
noop
|
||||
addx 3
|
||||
noop
|
||||
addx 3
|
||||
addx -2
|
||||
addx 2
|
||||
addx 5
|
||||
addx -38
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx 5
|
||||
addx 2
|
||||
addx -1
|
||||
addx 2
|
||||
addx 30
|
||||
addx -23
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx 3
|
||||
addx 5
|
||||
addx -11
|
||||
addx 12
|
||||
noop
|
||||
addx 6
|
||||
addx 1
|
||||
noop
|
||||
addx 4
|
||||
addx 3
|
||||
noop
|
||||
addx -40
|
||||
addx 4
|
||||
addx 28
|
||||
addx -27
|
||||
addx 5
|
||||
addx 2
|
||||
addx 5
|
||||
noop
|
||||
noop
|
||||
addx -2
|
||||
addx 2
|
||||
addx 5
|
||||
addx 3
|
||||
noop
|
||||
addx 2
|
||||
addx -25
|
||||
addx 30
|
||||
noop
|
||||
addx 3
|
||||
addx -2
|
||||
addx 2
|
||||
addx 5
|
||||
addx -39
|
||||
addx 29
|
||||
addx -27
|
||||
addx 5
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx 4
|
||||
noop
|
||||
addx 1
|
||||
addx 2
|
||||
addx 5
|
||||
addx 2
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx 5
|
||||
addx 1
|
||||
noop
|
||||
addx 2
|
||||
addx 5
|
||||
addx -32
|
||||
addx 34
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
|
|
@ -1,95 +0,0 @@
|
|||
package day10
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
type Solver struct {
|
||||
ops []Op
|
||||
}
|
||||
|
||||
type Op struct {
|
||||
opcode string
|
||||
operand int
|
||||
}
|
||||
|
||||
func (s *Solver) ParseInput(input []string) {
|
||||
s.ops = make([]Op, len(input))
|
||||
|
||||
for i, line := range input {
|
||||
splits := strings.Split(line, " ")
|
||||
opcode := splits[0]
|
||||
switch opcode {
|
||||
case "noop":
|
||||
s.ops[i] = Op{opcode, 0}
|
||||
case "addx":
|
||||
operand, _ := strconv.Atoi(splits[1])
|
||||
s.ops[i] = Op{opcode, operand}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
const maxCycles = 220
|
||||
|
||||
func (s *Solver) SolvePart1() any {
|
||||
cycleValuesForX := s.getXValues()
|
||||
|
||||
return getSignalStrength(cycleValuesForX)
|
||||
}
|
||||
|
||||
func (s *Solver) getXValues() []int {
|
||||
var cycleValuesForX = make([]int, 0)
|
||||
X := 1
|
||||
|
||||
cycleNum := 0
|
||||
|
||||
for _, op := range s.ops {
|
||||
switch op.opcode {
|
||||
case "noop":
|
||||
cycleValuesForX = append(cycleValuesForX, X)
|
||||
cycleNum += 1
|
||||
case "addx":
|
||||
cycleValuesForX = append(cycleValuesForX, X, X)
|
||||
cycleNum += 2
|
||||
|
||||
X += op.operand
|
||||
}
|
||||
}
|
||||
|
||||
for cycleNum <= 2*maxCycles {
|
||||
cycleValuesForX = append(cycleValuesForX, X)
|
||||
cycleNum++
|
||||
}
|
||||
return cycleValuesForX
|
||||
}
|
||||
|
||||
func getSignalStrength(xValues []int) int {
|
||||
const start = 20
|
||||
const step = 40
|
||||
|
||||
var total int
|
||||
for i := start; i <= maxCycles; i += step {
|
||||
total += i * xValues[i-1]
|
||||
}
|
||||
return total
|
||||
}
|
||||
|
||||
func (s *Solver) SolvePart2() any {
|
||||
cycleValuesForX := s.getXValues()
|
||||
|
||||
for r := 0; r < 6; r++ {
|
||||
for c := 0; c < 40; c++ {
|
||||
cycle := 40*r + c
|
||||
xValue := cycleValuesForX[cycle]
|
||||
if c >= xValue-1 && c <= xValue+1 {
|
||||
fmt.Print("#")
|
||||
} else {
|
||||
fmt.Print(" ")
|
||||
}
|
||||
}
|
||||
fmt.Println()
|
||||
}
|
||||
return "RGLRBZAU"
|
||||
}
|
||||
|
|
@ -1,146 +0,0 @@
|
|||
addx 15
|
||||
addx -11
|
||||
addx 6
|
||||
addx -3
|
||||
addx 5
|
||||
addx -1
|
||||
addx -8
|
||||
addx 13
|
||||
addx 4
|
||||
noop
|
||||
addx -1
|
||||
addx 5
|
||||
addx -1
|
||||
addx 5
|
||||
addx -1
|
||||
addx 5
|
||||
addx -1
|
||||
addx 5
|
||||
addx -1
|
||||
addx -35
|
||||
addx 1
|
||||
addx 24
|
||||
addx -19
|
||||
addx 1
|
||||
addx 16
|
||||
addx -11
|
||||
noop
|
||||
noop
|
||||
addx 21
|
||||
addx -15
|
||||
noop
|
||||
noop
|
||||
addx -3
|
||||
addx 9
|
||||
addx 1
|
||||
addx -3
|
||||
addx 8
|
||||
addx 1
|
||||
addx 5
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx -36
|
||||
noop
|
||||
addx 1
|
||||
addx 7
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx 2
|
||||
addx 6
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx 1
|
||||
noop
|
||||
noop
|
||||
addx 7
|
||||
addx 1
|
||||
noop
|
||||
addx -13
|
||||
addx 13
|
||||
addx 7
|
||||
noop
|
||||
addx 1
|
||||
addx -33
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx 2
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx 8
|
||||
noop
|
||||
addx -1
|
||||
addx 2
|
||||
addx 1
|
||||
noop
|
||||
addx 17
|
||||
addx -9
|
||||
addx 1
|
||||
addx 1
|
||||
addx -3
|
||||
addx 11
|
||||
noop
|
||||
noop
|
||||
addx 1
|
||||
noop
|
||||
addx 1
|
||||
noop
|
||||
noop
|
||||
addx -13
|
||||
addx -19
|
||||
addx 1
|
||||
addx 3
|
||||
addx 26
|
||||
addx -30
|
||||
addx 12
|
||||
addx -1
|
||||
addx 3
|
||||
addx 1
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx -9
|
||||
addx 18
|
||||
addx 1
|
||||
addx 2
|
||||
noop
|
||||
noop
|
||||
addx 9
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
addx -1
|
||||
addx 2
|
||||
addx -37
|
||||
addx 1
|
||||
addx 3
|
||||
noop
|
||||
addx 15
|
||||
addx -21
|
||||
addx 22
|
||||
addx -6
|
||||
addx 1
|
||||
noop
|
||||
addx 2
|
||||
addx 1
|
||||
noop
|
||||
addx -10
|
||||
noop
|
||||
noop
|
||||
addx 20
|
||||
addx 1
|
||||
addx 2
|
||||
addx 2
|
||||
addx -6
|
||||
addx -11
|
||||
noop
|
||||
noop
|
||||
noop
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
package day02
|
||||
package day2
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
package day03
|
||||
package day3
|
||||
|
||||
type Solver struct {
|
||||
rucksacks []Rucksack
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
package day04
|
||||
package day4
|
||||
|
||||
import (
|
||||
"strconv"
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
package day05
|
||||
package day5
|
||||
|
||||
import (
|
||||
"strconv"
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
package day06
|
||||
package day6
|
||||
|
||||
import "math/bits"
|
||||
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
package day07
|
||||
package day7
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
34
main.go
34
main.go
|
|
@ -6,16 +6,13 @@ import (
|
|||
"log"
|
||||
"time"
|
||||
|
||||
"snikolov.me/aoc2022/day01"
|
||||
"snikolov.me/aoc2022/day02"
|
||||
"snikolov.me/aoc2022/day03"
|
||||
"snikolov.me/aoc2022/day04"
|
||||
"snikolov.me/aoc2022/day05"
|
||||
"snikolov.me/aoc2022/day06"
|
||||
"snikolov.me/aoc2022/day07"
|
||||
"snikolov.me/aoc2022/day08"
|
||||
"snikolov.me/aoc2022/day09"
|
||||
"snikolov.me/aoc2022/day10"
|
||||
"snikolov.me/aoc2022/day1"
|
||||
"snikolov.me/aoc2022/day2"
|
||||
"snikolov.me/aoc2022/day3"
|
||||
"snikolov.me/aoc2022/day4"
|
||||
"snikolov.me/aoc2022/day5"
|
||||
"snikolov.me/aoc2022/day6"
|
||||
"snikolov.me/aoc2022/day7"
|
||||
|
||||
"snikolov.me/aoc2022/utils"
|
||||
)
|
||||
|
|
@ -50,16 +47,13 @@ func main() {
|
|||
|
||||
func solve(args Args, inputFileName string) {
|
||||
solvers := map[int]utils.Solver{
|
||||
1: &day01.Solver{},
|
||||
2: &day02.Solver{},
|
||||
3: &day03.Solver{},
|
||||
4: &day04.Solver{},
|
||||
5: &day05.Solver{},
|
||||
6: &day06.Solver{},
|
||||
7: &day07.Solver{},
|
||||
8: &day08.Solver{},
|
||||
9: &day09.Solver{},
|
||||
10: &day10.Solver{},
|
||||
1: &day1.Solver{},
|
||||
2: &day2.Solver{},
|
||||
3: &day3.Solver{},
|
||||
4: &day4.Solver{},
|
||||
5: &day5.Solver{},
|
||||
6: &day6.Solver{},
|
||||
7: &day7.Solver{},
|
||||
}
|
||||
solver, ok := solvers[args.DayNumber]
|
||||
if !ok {
|
||||
|
|
|
|||
Loading…
Reference in New Issue