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Zenny 2024-03-28 17:29:55 +01:00
commit 59ed4ac5f9
6 changed files with 143 additions and 0 deletions

8
.idea/.gitignore generated vendored Normal file
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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

9
.idea/SudokuSolver.iml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<module type="WEB_MODULE" version="4">
<component name="Go" enabled="true" />
<component name="NewModuleRootManager">
<content url="file://$MODULE_DIR$" />
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>

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.idea/modules.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/SudokuSolver.iml" filepath="$PROJECT_DIR$/.idea/SudokuSolver.iml" />
</modules>
</component>
</project>

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package SudokuValidator
type SudokuValidator struct {
rows [9]map[byte]bool
cols [9]map[byte]bool
boxes [9]map[byte]bool
}
func NewSudokuValidator() *SudokuValidator {
validator := &SudokuValidator{}
for i := 0; i < 9; i++ {
validator.rows[i] = make(map[byte]bool)
validator.cols[i] = make(map[byte]bool)
validator.boxes[i] = make(map[byte]bool)
}
return validator
}
func (s *SudokuValidator) isValidRow(row int, num byte) bool {
if s.rows[row][num] {
return false
}
s.rows[row][num] = true
return true
}
func (s *SudokuValidator) isValidColumn(col int, num byte) bool {
if s.cols[col][num] {
return false
}
s.cols[col][num] = true
return true
}
func (s *SudokuValidator) isValidBox(boxIndex int, num byte) bool {
if s.boxes[boxIndex][num] {
return false
}
s.boxes[boxIndex][num] = true
return true
}
func (s *SudokuValidator) IsValidSudoku(board *[][]byte) bool {
for i := 0; i < 9; i++ {
for j := 0; j < 9; j++ {
if (*board)[i][j] != '.' {
num := (*board)[i][j]
boxIndex := (i/3)*3 + j/3
if !(s.isValidRow(i, num) && s.isValidColumn(j, num) && s.isValidBox(boxIndex, num)) {
return false
}
}
}
}
return true
}
// IsValidSudoku2 just for demo purposes
func (s *SudokuValidator) IsValidSudoku2(board [][]byte) bool {
for i := 0; i < 9; i++ {
for j := 0; j < 9; j++ {
if board[i][j] != '.' {
num := board[i][j]
boxIndex := (i/3)*3 + j/3
if !(s.isValidRow(i, num) && s.isValidColumn(j, num) && s.isValidBox(boxIndex, num)) {
return false
}
}
}
}
return true
}

3
go.mod Normal file
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module SudokuSolver
go 1.22

41
main.go Normal file
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package main
import (
"SudokuSolver/SudokuValidator"
"fmt"
"time"
)
func main() {
board1 := [][]byte{
{'5', '3', '.', '.', '7', '.', '.', '.', '.'},
{'6', '.', '.', '1', '9', '5', '.', '.', '.'},
{'.', '9', '8', '.', '.', '.', '.', '6', '.'},
{'8', '.', '.', '.', '6', '.', '.', '.', '3'},
{'4', '.', '.', '8', '.', '3', '.', '.', '1'},
{'7', '.', '.', '.', '2', '.', '.', '.', '6'},
{'.', '6', '.', '.', '.', '.', '2', '8', '.'},
{'.', '.', '.', '4', '1', '9', '.', '.', '5'},
{'.', '.', '.', '.', '8', '.', '.', '7', '9'},
}
board2 := [][]byte{
{'8', '3', '.', '.', '7', '.', '.', '.', '.'},
{'6', '.', '.', '1', '9', '5', '.', '.', '.'},
{'.', '9', '8', '.', '.', '.', '.', '6', '.'},
{'8', '.', '.', '.', '6', '.', '.', '.', '3'},
{'4', '.', '.', '8', '.', '3', '.', '.', '1'},
{'7', '.', '.', '.', '2', '.', '.', '.', '6'},
{'.', '6', '.', '.', '.', '.', '2', '8', '.'},
{'.', '.', '.', '4', '1', '9', '.', '.', '5'},
{'.', '.', '.', '.', '8', '.', '.', '7', '9'},
}
tick := time.Tick(time.Millisecond)
start := <-tick
validator := SudokuValidator.NewSudokuValidator()
fmt.Println("Example 1 is valid:", validator.IsValidSudoku(&board1))
fmt.Println("Example 2 is valid:", validator.IsValidSudoku(&board2))
end := <-tick
elapsed := end.Sub(start)
fmt.Println("Time elapsed:", elapsed.Microseconds(), "microseconds")
}