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Diffstat (limited to '2019')
-rw-r--r--2019/eight.go87
-rw-r--r--2019/five.go131
-rw-r--r--2019/four.go68
-rw-r--r--2019/input/eight.txt1
-rw-r--r--2019/input/five.txt1
-rw-r--r--2019/input/four.txt1
-rw-r--r--2019/input/nine.txt1
-rw-r--r--2019/input/one.txt100
-rw-r--r--2019/input/seven.txt1
-rw-r--r--2019/input/six.txt1107
-rw-r--r--2019/input/ten.txt20
-rw-r--r--2019/input/three.txt2
-rw-r--r--2019/input/two.txt1
-rw-r--r--2019/nine.go166
-rw-r--r--2019/one.go40
-rw-r--r--2019/seven.go141
-rw-r--r--2019/six.go25
-rw-r--r--2019/ten.go47
-rw-r--r--2019/three.go156
-rw-r--r--2019/two.go66
20 files changed, 2162 insertions, 0 deletions
diff --git a/2019/eight.go b/2019/eight.go
new file mode 100644
index 0000000..74be0e1
--- /dev/null
+++ b/2019/eight.go
@@ -0,0 +1,87 @@
+package main
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+ "strconv"
+)
+
+func main() {
+ if len(os.Args) < 2 {
+ panic("runtime error: missing operand")
+ }
+ file, err := ioutil.ReadFile(os.Args[1])
+ if err != nil {
+ panic(err)
+ }
+ image := sliceify(file, 25, 6, len(file)/(25*6))
+
+ checksum(image)
+ decode(image)
+}
+
+func sliceify(file []byte, width int, height int, depth int) [][][]int {
+ var image [][][]int
+ pointer := 0
+
+ for i := 0; i < depth; i++ {
+ var b [][]int
+ for j := 0; j < height; j++ {
+ var a []int
+ for k := 0; k < width; k++ {
+ element, err := strconv.Atoi(string(file[pointer]))
+ if err != nil {
+ panic(err)
+ }
+ a = append(a, element)
+ pointer++
+ }
+ b = append(b, a)
+ }
+ image = append(image, b)
+ }
+ return image
+}
+
+func count(layer [][]int, val int) int {
+ total := 0
+ for i := 0; i < len(layer); i++ {
+ for j := 0; j < len(layer[i]); j++ {
+ if layer[i][j] == val {
+ total++
+ }
+ }
+ }
+ return total
+}
+
+func checksum(image [][][]int) {
+ min := count(image[0], 0)
+ layer := -1
+ for i := 0; i < len(image); i++ {
+ total := count(image[i], 0)
+ if total < min {
+ min = total
+ layer = i
+ }
+ }
+ fmt.Println(count(image[layer], 1) * count(image[layer], 2))
+}
+
+func decode(image [][][]int) {
+ for i := 0; i < len(image[0]); i++ {
+ for j := 0; j < len(image[0][0]); j++ {
+ for k := 0; k < len(image); k++ {
+ if image[k][i][j] == 0 {
+ fmt.Print(" ")
+ break
+ } else if image[k][i][j] == 1 {
+ fmt.Print("X")
+ break
+ }
+ }
+ }
+ fmt.Println()
+ }
+}
diff --git a/2019/five.go b/2019/five.go
new file mode 100644
index 0000000..9ea4699
--- /dev/null
+++ b/2019/five.go
@@ -0,0 +1,131 @@
+package main
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+ "strconv"
+)
+
+func main() {
+ var memory []int
+ start, size := 0, 0
+ if len(os.Args) < 2 {
+ panic("runtime error: missing operand")
+ }
+ file, err := ioutil.ReadFile(os.Args[1])
+ if err != nil {
+ panic(err)
+ }
+ for i := 0; i < len(file); i++ {
+ if file[i] == ',' || file[i] == '\n' {
+ arg, err := strconv.Atoi(string(file[start:i])) // i-1??
+ if err != nil {
+ panic(err)
+ }
+ memory = append(memory, arg)
+ start = i + 1
+ size++
+ }
+ }
+
+ // fmt.Println(execute(memory, size))
+ // noun, verb := etucexe(memory, size, 19690720)
+ // fmt.Println(100*noun + verb)
+ execute(memory, size)
+}
+
+func split(memory []int, i, size int) (int, int, int) {
+ mode := memory[i] / 100
+ three, two, one := i+3, i+2, i+1
+ if size-i > 1 {
+ if mode%10 == 0 {
+ one = memory[i+1]
+ }
+ if size-i > 2 {
+ if mode/10%10 == 0 {
+ two = memory[i+2]
+ }
+ if size-i > 3 {
+ if mode/100 == 0 {
+ three = memory[i+3]
+ }
+ }
+ }
+ }
+ return three, two, one
+}
+
+func execute(memory []int, size int) []int {
+ for i := 0; i < len(memory); {
+ opcode := memory[i] % 100
+ three, two, one := split(memory, i, size)
+ switch opcode {
+ case 1: // adds
+ memory[three] = memory[one] + memory[two]
+ i += 4
+ case 2: // multiplies
+ memory[three] = memory[one] * memory[two]
+ i += 4
+ case 3: // input
+ var input int
+ fmt.Print("Input: ")
+ resp, err := fmt.Scanf("%d", &input)
+ if err != nil {
+ fmt.Println(resp, err)
+ os.Exit(0)
+ }
+ memory[one] = input // not affected by modes
+ i += 2
+ case 4: // output
+ fmt.Println(memory[one])
+ i += 2
+ case 5: // jump-if-true
+ if memory[one] != 0 {
+ i = memory[two] // ???
+ } else {
+ i += 3
+ }
+ case 6: // jump-if-false
+ if memory[one] == 0 {
+ i = memory[two] // ???
+ } else {
+ i += 3
+ }
+ case 7: // less than
+ if memory[one] < memory[two] {
+ memory[memory[i+3]] = 1
+ } else {
+ memory[memory[i+3]] = 0
+ }
+ i += 4
+ case 8: // equals
+ if memory[one] == memory[two] {
+ memory[memory[i+3]] = 1
+ } else {
+ memory[memory[i+3]] = 0
+ }
+ i += 4
+ case 99: // terminate
+ return memory
+ default:
+ fmt.Println("Unsupported code", opcode, "at", i)
+ os.Exit(0)
+ }
+ }
+ return memory
+}
+
+func etucexe(memory []int, size, output int) (int, int) {
+ var volatile []int
+ for i := 0; i < len(memory); i++ {
+ for j := 0; j < len(memory); j++ {
+ volatile = append([]int(nil), memory...) // reset volatile to memory
+ volatile[1], volatile[2] = i, j
+ if execute(volatile, size)[0] == output {
+ return i, j
+ }
+ }
+ }
+ return -1, -1
+}
diff --git a/2019/four.go b/2019/four.go
new file mode 100644
index 0000000..7c901dc
--- /dev/null
+++ b/2019/four.go
@@ -0,0 +1,68 @@
+package main
+
+import (
+ "fmt"
+ "io/ioutil"
+ "math"
+ "os"
+ "strconv"
+)
+
+func main() {
+ smallest, largest, total, details := -1, -1, 0, 0
+ if len(os.Args) < 2 {
+ panic("runtime error: missing operand")
+ }
+ file, err := ioutil.ReadFile(os.Args[1])
+ if err != nil {
+ panic(err)
+ }
+ for i := 0; i < len(file); i++ {
+ if string(file[i]) == "-" {
+ smallest, err = strconv.Atoi(string(file[0:i]))
+ if err != nil {
+ panic(err)
+ }
+ largest, err = strconv.Atoi(string(file[i+1 : len(file)-1]))
+ if err != nil {
+ panic(err)
+ }
+ break
+ }
+ }
+
+ for i := smallest; i <= largest; i++ {
+ if criteria(i, false) {
+ total++
+ }
+ if criteria(i, true) {
+ details++
+ }
+ }
+ fmt.Println(total)
+ fmt.Println(details)
+}
+
+func criteria(password int, stage bool) bool {
+ prev := 0
+ for i := 0; i < 6; i++ {
+ if password/int(math.Pow(10, float64(5-i)))%10 < prev {
+ return false
+ }
+ prev = password / int(math.Pow(10, float64(5-i))) % 10
+ }
+ pascii := strconv.Itoa(password)
+ for i := 0; i < len(pascii)-1; i++ {
+ if string(pascii[i]) == string(pascii[i+1]) {
+ if !(len(pascii)-i > 2 && string(pascii[i]) == string(pascii[i+2])) {
+ if !stage { // Gross hack
+ return true
+ }
+ if !(i > 0 && string(pascii[i]) == string(pascii[i-1])) {
+ return true
+ }
+ }
+ }
+ }
+ return false
+}
diff --git a/2019/input/eight.txt b/2019/input/eight.txt
new file mode 100644
index 0000000..046a733
--- /dev/null
+++ b/2019/input/eight.txt
@@ -0,0 +1 @@
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diff --git a/2019/input/four.txt b/2019/input/four.txt
new file mode 100644
index 0000000..693a14b
--- /dev/null
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diff --git a/2019/input/nine.txt b/2019/input/nine.txt
new file mode 100644
index 0000000..bb2d334
--- /dev/null
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diff --git a/2019/input/one.txt b/2019/input/one.txt
new file mode 100644
index 0000000..199bf78
--- /dev/null
+++ b/2019/input/one.txt
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diff --git a/2019/input/seven.txt b/2019/input/seven.txt
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diff --git a/2019/input/six.txt b/2019/input/six.txt
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diff --git a/2019/input/ten.txt b/2019/input/ten.txt
new file mode 100644
index 0000000..716efc4
--- /dev/null
+++ b/2019/input/ten.txt
@@ -0,0 +1,20 @@
+.###.###.###.#####.#
+#####.##.###..###..#
+.#...####.###.######
+######.###.####.####
+#####..###..########
+#.##.###########.#.#
+##.###.######..#.#.#
+.#.##.###.#.####.###
+##..#.#.##.#########
+###.#######.###..##.
+###.###.##.##..####.
+.##.####.##########.
+#######.##.###.#####
+#####.##..####.#####
+##.#.#####.##.#.#..#
+###########.#######.
+#.##..#####.#####..#
+#####..#####.###.###
+####.#.############.
+####.#.#.##########.
diff --git a/2019/input/three.txt b/2019/input/three.txt
new file mode 100644
index 0000000..fcb8502
--- /dev/null
+++ b/2019/input/three.txt
@@ -0,0 +1,2 @@
+R998,U547,L703,D251,L776,U837,R100,U240,R197,D216,L220,U606,L437,U56,R940,U800,L968,D464,L870,D797,L545,D824,R790,U5,R347,D794,R204,U538,L247,U385,L103,D260,L590,U813,L549,U309,L550,U321,R862,D686,R368,D991,R451,D836,R264,D138,L292,D319,L784,D369,R849,U865,R776,D726,R223,D118,L790,D208,L836,D592,R310,D36,R991,U674,L205,U407,R422,U350,L126,D320,L239,U353,L509,U48,R521,D544,L157,D551,R614,D493,R407,D965,R498,U248,R826,U573,L782,D589,R616,D992,L806,D745,R28,U142,L333,D849,L858,D617,R167,U341,R46,U940,L615,D997,L447,D604,R148,U561,R925,D673,R441,U200,R458,U193,L805,D723,L208,U600,L926,U614,R660,D183,L408,D834,R248,U354,L110,U391,L37,U599,L287,U28,R859,D936,L404,D952,R11,U20,R708,U218,L800,U750,R936,D213,R6,D844,R728,D391,R114,U406,R390,U791,L199,D397,R476,D583,R99,U419,R575,D836,L896,U780,L77,U964,R441,U723,R248,D170,R527,D94,L39,U645,L338,D728,R503,U641,L358,D287,R171,U368,R176,D986,R821,U912,L231,D206,L451,U900,L35,D490,R190,D180,L937,D500,R157,U989,L336,U202,R178,U52,R931,U306,L85,D866,R756,U715,L521,D977,R936,U4,R207,D384,L785,U138,L682,U488,L537,U250,L877,D446,R849,U35,R258,U784,R263,D494,L324,U601,R302,U473,L737,D143,R184,D967,R95,U51,L713,U733,R297,U740,R677,D715,R750,U143,L980,U260,R915,D535,R202,U460,R365,U956,L73,U441,R182,D982,L869,D755,L837,D933,L856,D341,R189,D519,L387,D144,R575,U682,R317,U838,R154,D201,R237,D410,L43,U853,L495,U983,L953,U220,R697,D592,R355,U377,R792,U824,L441,U783,R258,D955,R451,D178,L151,D435,L232,U923,L663,U283,L92,D229,R514
+L995,U122,R472,U470,R725,U906,L83,U672,R448,U781,L997,U107,R66,D966,L780,D181,L662,U158,R804,D837,L237,U164,L98,U582,R925,D806,L153,D843,R601,U941,L968,D528,R482,D586,R15,U370,L592,U836,R828,U676,R606,D20,R841,U117,L262,U377,R375,U503,R166,D398,R161,D9,R140,D188,R895,D226,R77,U28,L727,D72,L51,U425,R370,D377,L801,D525,R102,D568,L416,D300,R415,U199,R941,U211,R285,U719,L259,U872,L959,U350,L196,D830,R515,U899,R298,U875,R946,U797,R108,U461,R999,D49,L369,D472,R83,D265,L825,D163,R162,U906,L816,D241,L587,D801,R601,D630,R937,U954,L379,D347,R831,D337,L192,D649,L853,U270,R162,D892,L26,D663,L276,U891,R843,U67,R225,D88,R686,U662,R794,D814,L200,D887,R567,U363,L863,U16,R975,D470,R714,U771,L267,D402,R75,U98,L686,U565,R584,D402,L824,D927,R71,U39,L174,D494,L358,D626,R616,D369,R471,U881,L428,U53,R862,U749,L847,D944,L887,D695,R442,U870,L993,U315,L878,U100,L480,D354,L12,D533,L236,D364,R450,U679,L926,D391,R313,D953,L560,D740,L974,D119,L370,U404,R339,U233,R901,U514,R584,D495,R308,U170,R759,U592,R388,U396,R477,U670,R906,D687,L874,U352,R124,U700,R289,D524,L93,D817,R408,D776,L235,D928,L534,D296,R116,U995,L63,D903,R758,U881,L530,U498,R573,D626,L26,U269,R237,U287,L840,D603,R948,D567,R89,U552,L299,D774,R863,D182,R773,D108,L137,U88,L731,U793,L267,U902,L41,U258,L156,U361,R389,D839,L976,U960,L342,D489,R816,U391,L393,U601,R255,D629,R832,U877,L34,D373,L809,D679,L104,U901,R157,U468,R143,U896,L637,D577,L545,D486,L970,D130,L305,D909,R984,D500,L935,U949,R525,D547,L786,U106,L269,D511,L919
diff --git a/2019/input/two.txt b/2019/input/two.txt
new file mode 100644
index 0000000..54b87b7
--- /dev/null
+++ b/2019/input/two.txt
@@ -0,0 +1 @@
+1,0,0,3,1,1,2,3,1,3,4,3,1,5,0,3,2,10,1,19,1,6,19,23,2,23,6,27,1,5,27,31,1,31,9,35,2,10,35,39,1,5,39,43,2,43,10,47,1,47,6,51,2,51,6,55,2,55,13,59,2,6,59,63,1,63,5,67,1,6,67,71,2,71,9,75,1,6,75,79,2,13,79,83,1,9,83,87,1,87,13,91,2,91,10,95,1,6,95,99,1,99,13,103,1,13,103,107,2,107,10,111,1,9,111,115,1,115,10,119,1,5,119,123,1,6,123,127,1,10,127,131,1,2,131,135,1,135,10,0,99,2,14,0,0
diff --git a/2019/nine.go b/2019/nine.go
new file mode 100644
index 0000000..432d780
--- /dev/null
+++ b/2019/nine.go
@@ -0,0 +1,166 @@
+package main
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+ "strconv"
+)
+
+func main() {
+ var memory []int
+ start, size := 0, 0
+ if len(os.Args) < 2 {
+ panic("runtime error: missing operand")
+ }
+ file, err := ioutil.ReadFile(os.Args[1])
+ if err != nil {
+ panic(err)
+ }
+ for i := 0; i < len(file); i++ {
+ if file[i] == ',' || file[i] == '\n' {
+ arg, err := strconv.Atoi(string(file[start:i])) // i-1??
+ if err != nil {
+ panic(err)
+ }
+ memory = append(memory, arg)
+ start = i + 1
+ size++
+ }
+ }
+ // fmt.Println(execute(memory, size))
+ // noun, verb := etucexe(memory, size, 19690720)
+ // fmt.Println(100*noun + verb)
+ execute(memory, size)
+}
+
+func split(memory []int, i, size, relative int) (int, int, int) {
+ mode := memory[i] / 100
+ three, two, one := i+3, i+2, i+1
+ if size-i > 1 {
+ if mode%10 == 0 {
+ one = memory[i+1]
+ } else if mode%10 == 2 {
+ one = relative + memory[i+1]
+ }
+ if size-i > 2 {
+ if mode/10%10 == 0 {
+ two = memory[i+2]
+ } else if mode%10 == 2 {
+ two = relative + memory[i+2]
+ }
+ if size-i > 3 {
+ if mode/100 == 0 {
+ three = memory[i+3]
+ } else if mode%10 == 2 {
+ three = relative + memory[i+3]
+ }
+ }
+ }
+ }
+ return three, two, one
+}
+
+func execute(memory []int, size int) []int {
+ /* todo: said "memory" functionality could be [pos, value]int
+ * i.e. when memory outside initial bounds wants to be accessed,
+ * it writes to a new element of this slice
+ * to access elements of the array, iterate through while checking each position
+ * additionally, to ensure there aren't conflicting "positions" in the array,
+ * do the above iteration process, if not, appends (this requires a total int)
+ */
+ /*
+ var swap [][2]int
+ */
+
+ // off-topic todo: https://www.golangprograms.com/example-arrays-of-arrays-arrays-of-slices-slices-of-arrays-and-slices-of-slices.html
+ // does this mean i can remove total / size because if so YES
+ for i := 0; i < 4000; i++ { // bad (example: no auto-termination due to 0 replacing nothingness)
+ memory = append(memory, 0)
+ }
+ relative := 0 // initial value of the relative base
+ for i := 0; i < len(memory); {
+ // bounds check
+ opcode := memory[i] % 100
+ three, two, one := split(memory, i, size, relative)
+ //fmt.Println("test:", opcode)
+ // actually what might work better than replacing all below would be
+ // checking if the next three values are out of bounds or not
+ // and then replacing them
+ // no bad idea large addition exists
+ switch opcode {
+ case 1: // adds
+ memory[three] = memory[one] + memory[two]
+ i += 4
+ case 2: // multiplies
+ // if out of bounds
+ // swap = append(swap, {memory[three], memory[one] * memory[two]})
+ // else
+ memory[three] = memory[one] * memory[two]
+ i += 4
+ case 3: // input
+ var input int
+ fmt.Print("Input: ")
+ resp, err := fmt.Scanf("%d", &input) // interesting note: anything following a valid integer is run by bash
+ if err != nil {
+ fmt.Println(resp, err)
+ os.Exit(0)
+ }
+ // out of bounds check
+ memory[one] = input // not affected by modes
+ i += 2
+ case 4: // output
+ fmt.Println(memory[one])
+ i += 2
+ case 5: // jump-if-true
+ if memory[one] != 0 {
+ i = memory[two]
+ } else {
+ i += 3
+ }
+ case 6: // jump-if-false
+ if memory[one] == 0 {
+ i = memory[two]
+ } else {
+ i += 3
+ }
+ case 7: // less than
+ if memory[one] < memory[two] {
+ memory[memory[i+3]] = 1 // instructions: _position_ given by the third parameter
+ } else {
+ memory[memory[i+3]] = 0
+ }
+ i += 4
+ case 8: // equals
+ if memory[one] == memory[two] {
+ memory[memory[i+3]] = 1
+ } else {
+ memory[memory[i+3]] = 0
+ }
+ i += 4
+ case 9: // adjusts the relative base
+ relative += memory[one] // interesting behavior when changing to i+1
+ i += 2
+ case 99: // terminate
+ return memory
+ default:
+ fmt.Println("Unsupported code", opcode, "at", i)
+ os.Exit(0)
+ }
+ }
+ return memory
+}
+
+func etucexe(memory []int, size, output int) (int, int) {
+ var volatile []int
+ for i := 0; i < len(memory); i++ {
+ for j := 0; j < len(memory); j++ {
+ volatile = append([]int(nil), memory...) // reset volatile to memory
+ volatile[1], volatile[2] = i, j
+ if execute(volatile, size)[0] == output {
+ return i, j
+ }
+ }
+ }
+ return -1, -1
+}
diff --git a/2019/one.go b/2019/one.go
new file mode 100644
index 0000000..cf27820
--- /dev/null
+++ b/2019/one.go
@@ -0,0 +1,40 @@
+package main
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+ "strconv"
+)
+
+func main() {
+ start, sum, fuelsum := 0, 0, 0
+ if len(os.Args) < 2 {
+ panic("runtime error: missing operand")
+ }
+ file, err := ioutil.ReadFile(os.Args[1])
+ if err != nil {
+ panic(err)
+ }
+ for i := 0; i < len(file); i++ {
+ if file[i] == '\n' {
+ arg, err := strconv.Atoi(string(file[start:i])) // i-1??
+ if err != nil {
+ panic(err)
+ }
+ start = i + 1
+ sum += (arg / 3) - 2
+ fuelsum += tyranny(arg)
+ }
+ }
+ fmt.Println(sum)
+ fmt.Println(fuelsum)
+}
+
+func tyranny(mass int) int {
+ subtotal := 0
+ for fuel := (mass / 3) - 2; fuel >= 0; fuel = (fuel / 3) - 2 {
+ subtotal += fuel
+ }
+ return subtotal
+}
diff --git a/2019/seven.go b/2019/seven.go
new file mode 100644
index 0000000..d71d827
--- /dev/null
+++ b/2019/seven.go
@@ -0,0 +1,141 @@
+package main
+
+import (
+ "fmt"
+ "os"
+ "strconv"
+)
+
+func main() {
+ var memory []int
+ size := 0
+ for i := 1; i < len(os.Args); i++ {
+ arg, err := strconv.Atoi(os.Args[i])
+ if err != nil {
+ panic(err)
+ }
+ memory = append(memory, arg)
+ size++
+ }
+ // fmt.Println(execute(memory, size))
+ // noun, verb := etucexe(memory, size, 19690720)
+ // fmt.Println(100*noun + verb)
+ // execute(memory, size)
+ fmt.Println(thrust(memory, size))
+}
+
+func thrust(memory []int, size int) int { // 120 total
+ max := 0
+ for a := 0; a < 5; a++ {
+ for b:=0; b < 4; b++ {
+ for c:=0;
+ }
+
+
+
+ a, b, c, d, e := i/10000, i/1000%10, i/100%100, i/10%1000, i%10000
+ a = execute(memory, size) // stdin fill this with a, 0
+ b = execute(memory, size) // stdin fill this with b, 0
+ c = execute(memory, size) // stdin fill this with c, 0
+ d = execute(memory, size) // stdin fill this with d, 0
+ e = execute(memory, size) // stdin fill this with e, 0
+ if (e > max) {
+ max = e
+ }
+ return max
+}
+
+func split(memory []int, i, size int) (int, int, int) {
+ mode := memory[i] / 100
+ three, two, one := i+3, i+2, i+1
+ if size-i > 1 {
+ if mode%10 == 0 {
+ one = memory[i+1]
+ }
+ if size-i > 2 {
+ if mode/10%10 == 0 {
+ two = memory[i+2]
+ }
+ if size-i > 3 {
+ if mode/100 == 0 {
+ three = memory[i+3]
+ }
+ }
+ }
+ }
+ return three, two, one
+}
+
+func execute(memory []int, size int) []int {
+ for i := 0; i < len(memory); {
+ opcode := memory[i] % 100
+ three, two, one := split(memory, i, size)
+ switch opcode {
+ case 1: // adds
+ memory[three] = memory[one] + memory[two]
+ i += 4
+ case 2: // multiplies
+ memory[three] = memory[one] * memory[two]
+ i += 4
+ case 3: // input
+ var input int
+ fmt.Print("Input: ")
+ resp, err := fmt.Scanf("%d", &input)
+ if err != nil {
+ fmt.Println(resp, err)
+ os.Exit(0)
+ }
+ memory[one] = input // not affected by modes
+ i += 2
+ case 4: // output
+ fmt.Println(memory[one])
+ i += 2
+ case 5: // jump-if-true
+ if memory[one] != 0 {
+ i = memory[two] // ???
+ } else {
+ i += 3
+ }
+ case 6: // jump-if-false
+ if memory[one] == 0 {
+ i = memory[two] // ???
+ } else {
+ i += 3
+ }
+ case 7: // less than
+ if memory[one] < memory[two] {
+ memory[memory[i+3]] = 1
+ } else {
+ memory[memory[i+3]] = 0
+ }
+ i += 4
+ case 8: // equals
+ if memory[one] == memory[two] {
+ memory[memory[i+3]] = 1
+ } else {
+ memory[memory[i+3]] = 0
+ }
+ i += 4
+ case 99: // terminate
+ return memory
+ default:
+ fmt.Println("Unsupported code", opcode, "at", i)
+ os.Exit(0)
+ }
+ }
+ return memory
+}
+
+func etucexe(memory []int, size, output int) (int, int) {
+ var volatile []int
+ for i := 0; i < len(memory); i++ {
+ for j := 0; j < len(memory); j++ {
+ volatile = append([]int(nil), memory...) // reset volatile to memory
+ volatile[1], volatile[2] = i, j
+ if execute(volatile, size)[0] == output {
+ return i, j
+ }
+ }
+ }
+ return -1, -1
+}
diff --git a/2019/six.go b/2019/six.go
new file mode 100644
index 0000000..646313d
--- /dev/null
+++ b/2019/six.go
@@ -0,0 +1,25 @@
+package main
+
+import (
+ "io/ioutil"
+ "os"
+)
+
+func main() {
+ if len(os.Args) < 2 {
+ panic("runtime error: missing operand")
+ }
+ file, err := ioutil.ReadFile(os.Args[1])
+ if err != nil {
+ panic(err)
+ }
+
+ for i := 0
+}
+
+func orbits(planet string) []string {
+
+ var chain []string
+
+ return chain
+}
diff --git a/2019/ten.go b/2019/ten.go
new file mode 100644
index 0000000..562299a
--- /dev/null
+++ b/2019/ten.go
@@ -0,0 +1,47 @@
+package main
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+)
+
+func main() {
+ var region [][]bool
+ x, y, size := 0, 0, 0
+ if len(os.Args) < 2 {
+ panic("runtime error: missing operand")
+ }
+ file, err := ioutil.ReadFile(os.Args[1])
+ if err != nil {
+ panic(err)
+ }
+ for i := 0; i < len(file); i++ {
+ if file[i] == '#' {
+ region[x][y] = true
+ x++
+ } else if file[i] == '\n' {
+ x = 0
+ y++
+ }
+ }
+ max := 0
+ fmt.Println("Maximum detectable asteroids:", detect(region, x, y))
+}
+
+func detect(region [][]bool, width, height int) int {
+ for i:= 0; i < width; i++ {
+ for j := 0; j < height; j++ {
+ if region[i][j] {
+ for k:= 0; k < width; k++ {
+ for l := 0; l < width; l++ {
+
+ }
+ }
+ }
+ }
+ }
+
+ slope :=
+ return
+}
diff --git a/2019/three.go b/2019/three.go
new file mode 100644
index 0000000..2c79a18
--- /dev/null
+++ b/2019/three.go
@@ -0,0 +1,156 @@
+package main
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+)
+
+func main() {
+ var directions [][]string
+ var temp []string
+ start := 0
+
+ if len(os.Args) < 2 {
+ panic("runtime error: missing operand")
+ }
+ file, err := ioutil.ReadFile(os.Args[1])
+ if err != nil {
+ panic(err)
+ }
+ for i := 0; i < len(file); i++ {
+ if string(file[i]) == "," || file[i] == '\n' {
+ temp = append(temp, string(file[start:i]))
+ start = i + 1
+ if file[i] == '\n' {
+ directions[] = append(directions[], temp)
+ temp = nil
+ }
+ }
+ }
+ fmt.Println(directions)
+
+ // grid [][]int := boolgrid(directions)
+
+}
+
+// ax, ay, at := taxi(directions[0])
+// bx, by, bt := taxi(directions[1])
+// for i := 0; i < at; i++ {
+// for j := 0; j < at; j++ {
+// for k := 0; k <
+// ax[i][j]
+// }
+// }
+// abx, aby
+
+// grid = taxi(directions, taxi(directions2, grid))
+// min, x, y := 4000, 0, 0
+// for i := 0; i < len(grid); i++ {
+// for j := 0; j < len(grid); j++ {
+// x, y = int(math.Abs(float64(i-500))), int(math.Abs(float64(j-500)))
+// if grid[i][j] == 2 && x+y < min {
+// fmt.Println(i-500, j-500)
+// min = x + y
+// }
+
+// }
+// }
+// fmt.Println("Manhattan distance to intersection:", min)
+// }
+
+// func taxi(directions []string) ([]int, []int, int) {
+// var horislice, vertslice []int
+// total := 0
+// for i := 0; i < len(directions); i++ {
+// direction := directions[i][0]
+// displacement, err := strconv.Atoi(directions[i][1:])
+// if err != nil {
+// panic(err)
+// }
+// switch direction {
+// case 'L':
+// for j := 0; j < displacement; j++ {
+// horislice = append(horislice, horislice[total]-j)
+// vertslice = append(vertslice, vertslice[total])
+// total++
+// }
+// case 'R':
+// for j := 0; j < displacement; j++ {
+// horislice = append(horislice, horislice[total]+j)
+// vertslice = append(vertslice, vertslice[total])
+// total++
+// }
+// case 'U':
+// for j := 0; j < displacement; j++ {
+// vertslice = append(vertslice, vertslice[total]+j)
+// horislice = append(horislice, horislice[total])
+// total++
+// }
+// case 'D':
+// for j := 0; j < displacement; j++ {
+// vertslice = append(vertslice, vertslice[total]-j)
+// horislice = append(horislice, horislice[total])
+// total++
+// }
+// default:
+// fmt.Println("Unhandled direction", string(direction))
+// os.Exit(0)
+// }
+// }
+// return horislice, vertslice, total
+// }
+
+// func taxi(directions []string, grid [4000][4000]int) [4000][4000]int { // sign convention: an array, left to right, top to bottom, beginning in the top left corner
+// x, y := len(grid)/2, len(grid[0])/2 // start in center
+// var boolgrid [4000][4000]bool
+// for i := 0; i < len(directions); i++ {
+// direction := directions[i][0]
+// displacement, err := strconv.Atoi(directions[i][1:])
+// if err != nil {
+// panic(err)
+// }
+// switch direction {
+// case 'L':
+// for j := 0; j < displacement; j++ {
+// x--
+// if !boolgrid[x][y] {
+// boolgrid[x][y] = true
+// }
+// }
+// case 'R':
+// for j := 0; j < displacement; j++ {
+// x++
+// if !boolgrid[x][y] {
+// boolgrid[x][y] = true
+// }
+// }
+// case 'U':
+// for j := 0; j < displacement; j++ {
+// y--
+// if !boolgrid[x][y] {
+// boolgrid[x][y] = true
+// }
+// }
+// case 'D':
+// for j := 0; j < displacement; j++ {
+// y++
+// if !boolgrid[x][y] {
+// boolgrid[x][y] = true
+// }
+// }
+// default:
+// fmt.Println("Unhandled direction", string(direction))
+// os.Exit(0)
+// }
+// fmt.Println(string(direction), displacement, x, y)
+// }
+// for i := 0; i < len(grid); i++ {
+// for j := 0; j < len(grid[0]); j++ {
+// if boolgrid[i][j] {
+// grid[i][j]++
+// }
+// }
+// }
+// return grid // each element is equal to the numbers of wires on it
+// }
diff --git a/2019/two.go b/2019/two.go
new file mode 100644
index 0000000..8108c87
--- /dev/null
+++ b/2019/two.go
@@ -0,0 +1,66 @@
+package main
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+ "strconv"
+)
+
+func main() {
+ var slice []int
+ start, size := 0, 0
+ if len(os.Args) < 2 {
+ panic("runtime error: missing operand")
+ }
+ file, err := ioutil.ReadFile(os.Args[1])
+ if err != nil {
+ panic(err)
+ }
+ for i := 0; i < len(file); i++ {
+ if file[i] == ',' || file[i] == '\n' {
+ arg, err := strconv.Atoi(string(file[start:i])) // i-1??
+ if err != nil {
+ panic(err)
+ }
+ slice = append(slice, arg)
+ start = i + 1
+ size++
+ }
+ }
+ noun, verb := edocpo(slice, 19690720)
+ slice[1] = 12
+ slice[2] = 2
+ fmt.Println(opcode(slice)[0])
+ fmt.Println(100*noun + verb)
+}
+
+func opcode(slice []int) []int {
+ for i := 0; i < len(slice); i += 4 {
+ if slice[i] == 1 {
+ slice[slice[i+3]] = slice[slice[i+1]] + slice[slice[i+2]]
+ } else if slice[i] == 2 {
+ slice[slice[i+3]] = slice[slice[i+1]] * slice[slice[i+2]]
+ } else if slice[i] == 99 {
+ return slice
+ } else {
+ fmt.Println("Unsupported code", slice[i], "at", i)
+ os.Exit(0)
+ }
+ }
+ return slice
+}
+
+func edocpo(slice []int, output int) (int, int) {
+ var ecils []int
+ for i := 0; i < len(slice); i++ {
+ for j := 0; j < len(slice); j++ {
+ ecils = append([]int(nil), slice...) // reset ecils to slice
+ ecils[1], ecils[2] = i, j
+ if opcode(ecils)[0] == output {
+ return i, j
+ }
+ }
+ }
+ return -1, -1
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-10-16 20:51:23 +0000