1 Commits

Author SHA1 Message Date
xuu
a5ebbe25d0 chore: save hacker rank 2024-06-10 21:26:09 -06:00
113 changed files with 114 additions and 1241 deletions

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...........
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..#.#...#..
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...........

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package main
import (
"bufio"
_ "embed"
"fmt"
aoc "go.sour.is/advent-of-code"
)
// var log = aoc.Log
func main() { aoc.MustResult(aoc.Runner(run)) }
type result struct {
valuePT1 int
valuePT2 int
}
func (r result) String() string { return fmt.Sprintf("%#v", r) }
func run(scan *bufio.Scanner) (*result, error) {
for scan.Scan() {
_ = scan.Text()
}
return &result{}, nil
}

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@@ -1,41 +0,0 @@
package main
import (
"bufio"
"bytes"
"testing"
_ "embed"
"github.com/matryer/is"
)
//go:embed example.txt
var example []byte
//go:embed input.txt
var input []byte
func TestExample(t *testing.T) {
is := is.New(t)
scan := bufio.NewScanner(bytes.NewReader(example))
result, err := run(scan)
is.NoErr(err)
t.Log(result)
is.Equal(result.valuePT1, 0)
is.Equal(result.valuePT2, 0)
}
func TestSolution(t *testing.T) {
is := is.New(t)
scan := bufio.NewScanner(bytes.NewReader(input))
result, err := run(scan)
is.NoErr(err)
t.Log(result)
is.Equal(result.valuePT1, 0)
is.Equal(result.valuePT2, 0)
}

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@@ -1,30 +0,0 @@
package main
import (
"bufio"
_ "embed"
"fmt"
aoc "go.sour.is/advent-of-code"
)
// var log = aoc.Log
func main() { aoc.MustResult(aoc.Runner(run)) }
type result struct {
valuePT1 int
valuePT2 int
}
func (r result) String() string { return fmt.Sprintf("%#v", r) }
func run(scan *bufio.Scanner) (*result, error) {
for scan.Scan() {
_ = scan.Text()
}
return &result{}, nil
}

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@@ -1,41 +0,0 @@
package main
import (
"bufio"
"bytes"
"testing"
_ "embed"
"github.com/matryer/is"
)
//go:embed example.txt
var example []byte
//go:embed input.txt
var input []byte
func TestExample(t *testing.T) {
is := is.New(t)
scan := bufio.NewScanner(bytes.NewReader(example))
result, err := run(scan)
is.NoErr(err)
t.Log(result)
is.Equal(result.valuePT1, 0)
is.Equal(result.valuePT2, 0)
}
func TestSolution(t *testing.T) {
is := is.New(t)
scan := bufio.NewScanner(bytes.NewReader(input))
result, err := run(scan)
is.NoErr(err)
t.Log(result)
is.Equal(result.valuePT1, 0)
is.Equal(result.valuePT2, 0)
}

2
go.mod
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@@ -1,6 +1,6 @@
module go.sour.is/advent-of-code
go 1.23.2
go 1.22.0
require (
github.com/matryer/is v1.4.1

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@@ -1,84 +0,0 @@
package main
import (
"fmt"
"os"
"bufio"
"strings"
"strconv"
)
func main() {
//Enter your code here. Read input from STDIN. Print output to STDOUT
scanner := bufio.NewScanner(os.Stdin)
var nodes int
var tree *node
var target [2]int
for scanner.Scan() {
text := scanner.Text()
if nodes == 0 {
nodes, _ = strconv.Atoi(text)
continue
}
if tree == nil {
for _, s := range strings.Fields(text) {
v, _ := strconv.Atoi(s)
tree = insertNode(tree, &node{value:v})
}
continue
}
for i, s := range strings.Fields(text) {
v, _ := strconv.Atoi(s)
target[i] = v
}
}
if target[0]>target[1] {
target[0], target[1] = target[1], target[0]
}
fmt.Fprintln(os.Stderr, tree)
if n := lsa(tree, target); n != nil {
fmt.Println(n.value)
return
}
fmt.Println("nil")
}
type node struct{
value int
left *node
right *node
}
func insertNode(root, n *node) *node {
if root == nil {
return n
}
if root.value > n.value {
root.left = insertNode(root.left, n)
return root
}
root.right = insertNode(root.right, n)
return root
}
func (n *node) String() string {
if n == nil { return "nil" }
return fmt.Sprintf("%v (%v %v)", n.value, n.left, n.right)
}
func lsa(tree *node, target [2]int) *node {
if tree == nil {
return nil
}
if target[0]>tree.value {
return lsa(tree.right, target)
}
if target[1]<tree.value {
return lsa(tree.left, target)
}
return tree
}

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@@ -1,80 +0,0 @@
package main
import (
"bufio"
"fmt"
"io"
"os"
"strconv"
"strings"
)
/*
* Complete the 'countingSort' function below.
*
* The function is expected to return an INTEGER_ARRAY.
* The function accepts INTEGER_ARRAY arr as parameter.
*/
func countingSort(arr []int32) []int32 {
freq := make([]int32, 100)
for _, i := range arr {
freq[i]++
}
return freq
}
func main() {
reader := bufio.NewReaderSize(os.Stdin, 16 * 1024 * 1024)
stdout, err := os.Create(os.Getenv("OUTPUT_PATH"))
checkError(err)
defer stdout.Close()
writer := bufio.NewWriterSize(stdout, 16 * 1024 * 1024)
nTemp, err := strconv.ParseInt(strings.TrimSpace(readLine(reader)), 10, 64)
checkError(err)
n := int32(nTemp)
arrTemp := strings.Split(strings.TrimSpace(readLine(reader)), " ")
var arr []int32
for i := 0; i < int(n); i++ {
arrItemTemp, err := strconv.ParseInt(arrTemp[i], 10, 64)
checkError(err)
arrItem := int32(arrItemTemp)
arr = append(arr, arrItem)
}
result := countingSort(arr)
for i, resultItem := range result {
fmt.Fprintf(writer, "%d", resultItem)
if i != len(result) - 1 {
fmt.Fprintf(writer, " ")
}
}
fmt.Fprintf(writer, "\n")
writer.Flush()
}
func readLine(reader *bufio.Reader) string {
str, _, err := reader.ReadLine()
if err == io.EOF {
return ""
}
return strings.TrimRight(string(str), "\r\n")
}
func checkError(err error) {
if err != nil {
panic(err)
}
}

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@@ -1,84 +0,0 @@
package main
import (
"bufio"
"fmt"
"io"
"os"
"strconv"
"strings"
)
/*
* Complete the 'diagonalDifference' function below.
*
* The function is expected to return an INTEGER.
* The function accepts 2D_INTEGER_ARRAY arr as parameter.
*/
func diagonalDifference(arr [][]int32) int32 {
var sum int32
for i, row := range arr {
sum += row[i] - row[len(row)-i-1]
}
if sum < 0 {
sum *= -1
}
return sum
}
func main() {
reader := bufio.NewReaderSize(os.Stdin, 16 * 1024 * 1024)
stdout, err := os.Create(os.Getenv("OUTPUT_PATH"))
checkError(err)
defer stdout.Close()
writer := bufio.NewWriterSize(stdout, 16 * 1024 * 1024)
nTemp, err := strconv.ParseInt(strings.TrimSpace(readLine(reader)), 10, 64)
checkError(err)
n := int32(nTemp)
var arr [][]int32
for i := 0; i < int(n); i++ {
arrRowTemp := strings.Split(strings.TrimRight(readLine(reader)," \t\r\n"), " ")
var arrRow []int32
for _, arrRowItem := range arrRowTemp {
arrItemTemp, err := strconv.ParseInt(arrRowItem, 10, 64)
checkError(err)
arrItem := int32(arrItemTemp)
arrRow = append(arrRow, arrItem)
}
if len(arrRow) != int(n) {
panic("Bad input")
}
arr = append(arr, arrRow)
}
result := diagonalDifference(arr)
fmt.Fprintf(writer, "%d\n", result)
writer.Flush()
}
func readLine(reader *bufio.Reader) string {
str, _, err := reader.ReadLine()
if err == io.EOF {
return ""
}
return strings.TrimRight(string(str), "\r\n")
}
func checkError(err error) {
if err != nil {
panic(err)
}
}

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@@ -1,64 +0,0 @@
package main
import (
"bufio"
"fmt"
"io"
"os"
"strconv"
"strings"
)
/*
* Complete the 'flippingBits' function below.
*
* The function is expected to return a LONG_INTEGER.
* The function accepts LONG_INTEGER n as parameter.
*/
func flippingBits(n int64) int64 {
// Write your code here
max := int64(^uint32(0))
return n ^ max
}
func main() {
reader := bufio.NewReaderSize(os.Stdin, 16 * 1024 * 1024)
stdout, err := os.Create(os.Getenv("OUTPUT_PATH"))
checkError(err)
defer stdout.Close()
writer := bufio.NewWriterSize(stdout, 16 * 1024 * 1024)
qTemp, err := strconv.ParseInt(strings.TrimSpace(readLine(reader)), 10, 64)
checkError(err)
q := int32(qTemp)
for qItr := 0; qItr < int(q); qItr++ {
n, err := strconv.ParseInt(strings.TrimSpace(readLine(reader)), 10, 64)
checkError(err)
result := flippingBits(n)
fmt.Fprintf(writer, "%d\n", result)
}
writer.Flush()
}
func readLine(reader *bufio.Reader) string {
str, _, err := reader.ReadLine()
if err == io.EOF {
return ""
}
return strings.TrimRight(string(str), "\r\n")
}
func checkError(err error) {
if err != nil {
panic(err)
}
}

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@@ -1,77 +0,0 @@
package main
import (
"bufio"
"fmt"
"io"
"os"
"strconv"
"strings"
)
/*
* Complete the 'lonelyinteger' function below.
*
* The function is expected to return an INTEGER.
* The function accepts INTEGER_ARRAY a as parameter.
*/
func lonelyinteger(a []int32) int32 {
m := make(map[int32]int8, len(a)/2+1)
for _, i := range a {
m[i] = m[i]+1
}
for k,v := range m {
if v == 1 {
return k
}
}
return 0
}
func main() {
reader := bufio.NewReaderSize(os.Stdin, 16 * 1024 * 1024)
stdout, err := os.Create(os.Getenv("OUTPUT_PATH"))
checkError(err)
defer stdout.Close()
writer := bufio.NewWriterSize(stdout, 16 * 1024 * 1024)
nTemp, err := strconv.ParseInt(strings.TrimSpace(readLine(reader)), 10, 64)
checkError(err)
n := int32(nTemp)
aTemp := strings.Split(strings.TrimSpace(readLine(reader)), " ")
var a []int32
for i := 0; i < int(n); i++ {
aItemTemp, err := strconv.ParseInt(aTemp[i], 10, 64)
checkError(err)
aItem := int32(aItemTemp)
a = append(a, aItem)
}
result := lonelyinteger(a)
fmt.Fprintf(writer, "%d\n", result)
writer.Flush()
}
func readLine(reader *bufio.Reader) string {
str, _, err := reader.ReadLine()
if err == io.EOF {
return ""
}
return strings.TrimRight(string(str), "\r\n")
}
func checkError(err error) {
if err != nil {
panic(err)
}
}

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