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Added: Sodoko Solver In DP (#420)
* Added: Sodoko Solver In DP * added: space remove * Chnage code accoding to npm standards. * Change * Update: All Issue Fix * Update SudokuSolver.js Co-authored-by: vinayak <itssvinayak@gmail.com>
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50
Dynamic-Programming/SudokuSolver.js
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50
Dynamic-Programming/SudokuSolver.js
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@ -0,0 +1,50 @@
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const _board = [
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['.', '9', '.', '.', '4', '2', '1', '3', '6'],
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['.', '.', '.', '9', '6', '.', '4', '8', '5'],
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['.', '.', '.', '5', '8', '1', '.', '.', '.'],
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['.', '.', '4', '.', '.', '.', '.', '.', '.'],
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['5', '1', '7', '2', '.', '.', '9', '.', '.'],
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['6', '.', '2', '.', '.', '.', '3', '7', '.'],
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['1', '.', '.', '8', '.', '4', '.', '2', '.'],
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['7', '.', '6', '.', '.', '.', '8', '1', '.'],
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['3', '.', '.', '.', '9', '.', '.', '.', '.']
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]
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const isValid = (board, row, col, k) => {
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for (let i = 0; i < 9; i++) {
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const m = 3 * Math.floor(row / 3) + Math.floor(i / 3)
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const n = 3 * Math.floor(col / 3) + i % 3
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if (board[row][i] === k || board[i][col] === k || board[m][n] === k) {
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return false
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}
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}
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return true
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}
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const sodokoSolver = (data) => {
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for (let i = 0; i < 9; i++) {
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for (let j = 0; j < 9; j++) {
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if (data[i][j] === '.') {
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for (let k = 1; k <= 9; k++) {
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if (isValid(data, i, j, k)) {
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data[i][j] = `${k}`
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if (sodokoSolver(data)) {
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return true
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} else {
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data[i][j] = '.'
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}
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}
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}
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return false
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}
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}
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}
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return true
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}
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// testing
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(() => {
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if (sodokoSolver(_board)) {
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console.log(_board)
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}
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})()
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