Day 23 Done, I guess

master
Brian Buller 2 years ago
parent 08cb79c5cb
commit 847235118b
  1. BIN
      2019/day23-scratch/day23-scratch
  2. 1
      2019/day23-scratch/input
  3. 123
      2019/day23-scratch/main.go
  4. 143
      2019/day23/main.go
  5. 163
      2019/day23/network.go

Binary file not shown.

File diff suppressed because one or more lines are too long

@ -1,123 +0,0 @@
package main
import (
"fmt"
"io/ioutil"
"strconv"
"strings"
)
func main() {
input, _ := ioutil.ReadFile("input")
// Build the memory
mem := map[int]int{}
for i, s := range strings.Split(strings.TrimSpace(string(input)), ",") {
mem[i], _ = strconv.Atoi(s)
}
// Mesage Buffers
in, out := make([]chan int, 50), make([]chan int, 50)
for i := 0; i < 50; i++ {
in[i], out[i] = make(chan int), make(chan int)
go run(mem, in[i], out[i])
// Send address to each computer first
in[i] <- i
in[i] <- -1
}
idle := 0
var old, nat [2]int
for i := 0; ; i = (i + 1) % 50 {
select {
case addr := <-out[i]:
if addr == 255 {
new := [2]int{<-out[i], <-out[i]}
if nat == [2]int{} {
fmt.Println(new[1])
}
nat = new
} else {
in[addr] <- <-out[i]
in[addr] <- <-out[i]
}
idle = 0
case in[i] <- -1:
idle++
}
if idle >= 50 {
if nat[1] == old[1] {
fmt.Println(nat[1])
return
}
in[0] <- nat[0]
in[0] <- nat[1]
old = nat
idle = 0
}
}
}
func run(init map[int]int, in <-chan int, out chan<- int) {
ip, rb := 0, 0
mem := map[int]int{}
for i, v := range init {
mem[i] = v
}
for {
ins := fmt.Sprintf("%05d", mem[ip])
op, _ := strconv.Atoi(ins[3:])
par := func(i int) int {
switch ins[3-i] {
case '1':
return ip + i
case '2':
return rb + mem[ip+i]
default:
return mem[ip+i]
}
}
switch op {
case 1:
mem[par(3)] = mem[par(1)] + mem[par(2)]
case 2:
mem[par(3)] = mem[par(1)] * mem[par(2)]
case 3:
mem[par(1)] = <-in
case 4:
out <- mem[par(1)]
case 5:
if mem[par(1)] != 0 {
ip = mem[par(2)]
continue
}
case 6:
if mem[par(1)] == 0 {
ip = mem[par(2)]
continue
}
case 7:
if mem[par(1)] < mem[par(2)] {
mem[par(3)] = 1
} else {
mem[par(3)] = 0
}
case 8:
if mem[par(1)] == mem[par(2)] {
mem[par(3)] = 1
} else {
mem[par(3)] = 0
}
case 9:
rb += mem[par(1)]
case 99:
return
}
ip += []int{1, 4, 4, 2, 2, 3, 3, 4, 4, 2}[op]
}
}

@ -2,53 +2,122 @@ package main
import (
"fmt"
h "git.bullercodeworks.com/brian/adventofcode/helpers"
"io/ioutil"
"strconv"
"strings"
)
func main() {
pt := h.GetArgNumber(1)
if pt != "2" {
part1()
} else {
part2()
input, _ := ioutil.ReadFile("input")
// Build the memory
mem := map[int]int{}
for i, s := range strings.Split(strings.TrimSpace(string(input)), ",") {
mem[i], _ = strconv.Atoi(s)
}
}
func part1() {
devices, queue := NewNetwork()
for {
//fmt.Print(h.CLEAR_SCREEN)
for i, dev := range devices {
var packet h.Coordinate
if len(queue[i]) > 0 {
packet = queue[i][0]
// Mesage Buffers
in, out := make([]chan int, 50), make([]chan int, 50)
for i := 0; i < 50; i++ {
in[i], out[i] = make(chan int), make(chan int)
go run(mem, in[i], out[i])
// Send address to each computer first
in[i] <- i
in[i] <- -1
}
idle := 0
var old, nat [2]int
for i := 0; ; i = (i + 1) % 50 {
select {
case addr := <-out[i]:
if addr == 255 {
new := [2]int{<-out[i], <-out[i]}
if nat == [2]int{} {
fmt.Println(new[1])
}
nat = new
} else {
packet = h.Coordinate{X: -1, Y: -1}
in[addr] <- <-out[i]
in[addr] <- <-out[i]
}
select {
case dest := <-dev.Channel:
x := <-dev.Channel
y := <-dev.Channel
//fmt.Printf("%s: [%d] -> [%d]: {%d, %d}\n", time.Now().Format(time.Stamp), i, dest, x, y)
if dest == 255 {
fmt.Println(y)
return
}
queue[dest] = append(queue[dest], h.Coordinate{X: x, Y: y})
case dev.Channel <- packet.X:
//if packet.X != -1 && packet.Y != -1 {
// fmt.Printf("%s: [%d] <-: {%d, %d}\n", time.Now().Format(time.Stamp), i, packet.X, packet.Y)
//}
if packet.X != -1 {
dev.Channel <- packet.Y
queue[i] = queue[i][1:]
}
idle = 0
case in[i] <- -1:
idle++
}
if idle >= 50 {
if nat[1] == old[1] {
fmt.Println(nat[1])
return
}
//fmt.Println(dev)
in[0] <- nat[0]
in[0] <- nat[1]
old = nat
idle = 0
}
}
}
func part2() {
func run(init map[int]int, in <-chan int, out chan<- int) {
ip, rb := 0, 0
mem := map[int]int{}
for i, v := range init {
mem[i] = v
}
for {
ins := fmt.Sprintf("%05d", mem[ip])
op, _ := strconv.Atoi(ins[3:])
par := func(i int) int {
switch ins[3-i] {
case '1':
return ip + i
case '2':
return rb + mem[ip+i]
default:
return mem[ip+i]
}
}
switch op {
case 1:
mem[par(3)] = mem[par(1)] + mem[par(2)]
case 2:
mem[par(3)] = mem[par(1)] * mem[par(2)]
case 3:
mem[par(1)] = <-in
case 4:
out <- mem[par(1)]
case 5:
if mem[par(1)] != 0 {
ip = mem[par(2)]
continue
}
case 6:
if mem[par(1)] == 0 {
ip = mem[par(2)]
continue
}
case 7:
if mem[par(1)] < mem[par(2)] {
mem[par(3)] = 1
} else {
mem[par(3)] = 0
}
case 8:
if mem[par(1)] == mem[par(2)] {
mem[par(3)] = 1
} else {
mem[par(3)] = 0
}
case 9:
rb += mem[par(1)]
case 99:
return
}
ip += []int{1, 4, 4, 2, 2, 3, 3, 4, 4, 2}[op]
}
}

@ -1,163 +0,0 @@
package main
import (
"fmt"
"io/ioutil"
"strconv"
"strings"
h "git.bullercodeworks.com/brian/adventofcode/helpers"
)
var incache []int
type Computer struct {
Address int
Program []int
Position int
Offset int
Channel chan int
}
func (c Computer) String() string {
status := "○"
if c.Position%2 == 0 {
status = "●"
}
return fmt.Sprintf("[%2d] %s {%d}", c.Address, status, c.Offset)
}
func (c *Computer) parseInstruction() (int, []int) {
inst := c.read(c.Position)
opcode := inst % 100
modes := make([]int, 4)
inst /= 100
for i := 0; inst > 0; i++ {
modes[i] = inst % 10
inst /= 10
}
return opcode, modes
}
func (c *Computer) parseParameters(modes []int, num int) []int {
params := make([]int, num)
for i := 0; i < num; i++ {
if i >= len(modes) || modes[i] == 0 {
params[i] = c.read(c.read(c.Position + i + 1))
} else if modes[i] == 1 {
params[i] = c.read(c.Position + i + 1)
} else {
params[i] = c.read(c.read(c.Position+i+1) + c.Offset)
}
}
return params
}
func (c *Computer) read(pos int) int {
if pos >= len(c.Program) {
return 0
}
return c.Program[pos]
}
func (c *Computer) write(pos, val, mode int) {
if mode == 2 {
pos += c.Offset
}
if pos >= len(c.Program) {
prog := make([]int, pos*2)
copy(prog, c.Program)
c.Program = prog
}
c.Program[pos] = val
}
func (c *Computer) run() {
for c.read(c.Position) != 99 {
inst, modes := c.parseInstruction()
switch inst {
case 1:
params := c.parseParameters(modes, 2)
c.write(c.read(c.Position+3), params[0]+params[1], modes[2])
c.Position += 4
case 2:
params := c.parseParameters(modes, 2)
c.write(c.read(c.Position+3), params[0]*params[1], modes[2])
c.Position += 4
case 3:
c.write(c.read(c.Position+1), <-c.Channel, modes[0])
c.Position += 2
case 4:
params := c.parseParameters(modes, 1)
c.Channel <- params[0]
c.Position += 2
case 5:
params := c.parseParameters(modes, 2)
if params[0] != 0 {
c.Position = params[1]
} else {
c.Position += 3
}
case 6:
params := c.parseParameters(modes, 2)
if params[0] == 0 {
c.Position = params[1]
} else {
c.Position += 3
}
case 7:
params := c.parseParameters(modes, 2)
if params[0] < params[1] {
c.write(c.read(c.Position+3), 1, modes[2])
} else {
c.write(c.read(c.Position+3), 0, modes[2])
}
c.Position += 4
case 8:
params := c.parseParameters(modes, 2)
if params[0] == params[1] {
c.write(c.read(c.Position+3), 1, modes[2])
} else {
c.write(c.read(c.Position+3), 0, modes[2])
}
c.Position += 4
case 9:
params := c.parseParameters(modes, 1)
c.Offset += params[0]
c.Position += 2
}
}
close(c.Channel)
}
func NewComputer() Computer {
var ints []int
if incache == nil {
input, _ := ioutil.ReadFile("input")
ints = make([]int, 0)
for _, v := range strings.Split(string(input), ",") {
i, _ := strconv.Atoi(v)
ints = append(ints, i)
}
incache = make([]int, len(ints))
copy(incache, ints)
} else {
ints = make([]int, len(incache))
copy(ints, incache)
}
c := Computer{Program: ints, Channel: make(chan int)}
go c.run()
return c
}
func NewNetwork() ([]Computer, [][]h.Coordinate) {
devices := make([]Computer, 50)
queue := make([][]h.Coordinate, len(devices))
for i := 0; i < len(devices); i++ {
devices[i] = NewComputer()
devices[i].Address = i
devices[i].Channel <- i
queue[i] = make([]h.Coordinate, 0)
}
return devices, queue
}
Loading…
Cancel
Save