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index.ts
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'use strict'
let soku: number[][] = [[], [], [], [], [], [], [], [], []]
let sokuAns: number[][], row: boolean[], n: boolean[], g: boolean[];
let notes: boolean[][][] = [[[true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true]], [[true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true]], [[true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true]], [[true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true]], [[true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true]], [[true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true]], [[true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true]], [[true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true]], [[true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true], [true, true, true, true, true, true, true, true, true]]];
let numLeft: number[][] = [[9, 9, 9, 9, 9, 9, 9, 9, 9, 9], [9, 9, 9, 9, 9, 9, 9, 9, 9, 9], [9, 9, 9, 9, 9, 9, 9, 9, 9, 9], [9, 9, 9, 9, 9, 9, 9, 9, 9, 9], [9, 9, 9, 9, 9, 9, 9, 9, 9, 9], [9, 9, 9, 9, 9, 9, 9, 9, 9, 9], [9, 9, 9, 9, 9, 9, 9, 9, 9, 9], [9, 9, 9, 9, 9, 9, 9, 9, 9, 9], [9, 9, 9, 9, 9, 9, 9, 9, 9, 9], [9, 9, 9, 9, 9, 9, 9, 9, 9, 9]];
window.onload = () => {
for (let i: number = 0, table = document.body.querySelector("table"); i < 9; i++) {
let tr = document.createElement('tr');
for (let j: number = 0; j < 9; j++) {
let th = document.createElement('th');
th.innerHTML =
`<input id="r${i}c${j}" type="text" maxlength="1" onfocus="this.select()" onKeyUp = "value = value.replace(/[^1-9]/g,'');if(value != ''){this.blur();}InputSoku();">`; //阻止输入除1-9以外的字符,输入后取消光标
tr.append(th);
}
table?.append(tr);
}
setInterval(InputSoku, 1000);//防输入字母
}
// function getGrid(row:number,col:number){
// return parseInt(row/3)*3+parseInt(col/3)+1;
// }
function Check() {
let valid: boolean = true;
let used: boolean[];
for (let i = 0; i < 9; i++) {
for (let j = 0; j < 9; j++) {
(<HTMLInputElement>document.querySelector(`table tr:nth-child(${i + 1}) th:nth-child(${j + 1})`)).style.background = "";
}//清除所有错误，方便重填
used = [false, false, false, false, false, false, false, false, false, false];
for (let j = 0; j < 9; j++) {
if (soku[i][j] != 0) {
if (used[soku[i][j]] == false)
used[soku[i][j]] = true;
else {
valid = false;
// (<HTMLInputElement>document.querySelector(`table tr:nth-child(${i+1})`)).style.background="pink";//整行高亮
for (let k = 0; k < 9; k++) {
if (soku[i][k] == soku[i][j]) {
(<HTMLInputElement>document.querySelector(`table tr:nth-child(${i + 1}) th:nth-child(${k + 1})`)).style.background = "red";
}
}
(<HTMLInputElement>document.querySelector(`table tr:nth-child(${i + 1}) th:nth-child(${j + 1})`)).style.background = "red";
}
}
}
}
for (let i = 0; i < 9; i++) {
used = [false, false, false, false, false, false, false, false, false, false];
for (let j = 0; j < 9; j++) {
if (soku[j][i] != 0) {
if (used[soku[j][i]] == false)
used[soku[j][i]] = true;
else {
valid = false;
for (let k = 0; k < 9; k++) {
if (soku[k][i] == soku[j][i]) {
(<HTMLInputElement>document.querySelector(`table tr:nth-child(${k + 1}) th:nth-child(${i + 1})`)).style.background = "red";
}
}
(<HTMLInputElement>document.querySelector(`table tr:nth-child(${j + 1}) th:nth-child(${i + 1})`)).style.background = "red";
}
}
}
}
for (let i = 0; i < 9; i++) {
used = [false, false, false, false, false, false, false, false, false, false];
for (let j = 0; j < 9; j++) {
if (soku[Math.floor(i / 3) * 3 + Math.floor(j / 3)][(i % 3) * 3 + j % 3] != 0) {
if (used[soku[Math.floor(i / 3) * 3 + Math.floor(j / 3)][(i % 3) * 3 + j % 3]] == false)
used[soku[Math.floor(i / 3) * 3 + Math.floor(j / 3)][(i % 3) * 3 + j % 3]] = true;
else {
valid = false;
for (let k = 0; k < 9; k++) {
if (soku[Math.floor(i / 3) * 3 + Math.floor(k / 3)][(i % 3) * 3 + k % 3] == soku[Math.floor(i / 3) * 3 + Math.floor(j / 3)][(i % 3) * 3 + j % 3]) {
(<HTMLInputElement>document.querySelector(`table tr:nth-child(${Math.floor(i / 3) * 3 + Math.floor(k / 3) + 1}) th:nth-child(${(i % 3) * 3 + k % 3 + 1})`)).style.background = "red";
}
}
(<HTMLInputElement>document.querySelector(`table tr:nth-child(${Math.floor(i / 3) * 3 + Math.floor(j / 3) + 1}) th:nth-child(${(i % 3) * 3 + j % 3 + 1})`)).style.background = "red";
}
}
}
}
return valid;
}
function InputSoku() {
for (let i: number = 0; i < 9; i++) {
for (let j: number = 0; j < 9; j++) {
(<HTMLInputElement>document.getElementById(`r${i}c${j}`)).value = (<HTMLInputElement>document.getElementById(`r${i}c${j}`)).value.replace(/[^1-9]/g, '')
soku[i][j] = (<HTMLInputElement>document.getElementById(`r${i}c${j}`)).value == '' ? 0 : Number((<HTMLInputElement>document.getElementById(`r${i}c${j}`)).value)
}
}
Check();
}
function Solve() {
InputSoku();//你永远不会知道用户会通过什么方式逃脱输入检查
//各种检查
if (Check() == false) {
alert("数独不合法，请修改后再试");
return;
}
{//检查输入个数为0的情况
let sum = 0;
soku.forEach(i => {
i.forEach(j => {
sum += j;
});
});
if (sum == 0) {
alert("啥都不输解个p呢");
return;
}
}
{//FIXME 还没判断完所有情况
let sum = 0;//数字数小于17一定多解
soku.forEach(i => {
i.forEach(j => {
if (j != 0) {
sum++;
}
});
});
if (sum < 17) {
alert("这个数独肯定没有唯一解啦（虽然目前有些有多个解的数独也不一定能判断的出来）");
return;
}
for (let i = 0; i < 9; i++) {
if (i % 3 == 0) {
sum = 0;
}
for (let j = 0; j < 9; j++) {
if (soku[i][j] != 0) break;
if (j == 8) sum++;
}
if (sum == 2) {
alert("这个数独肯定没有唯一解啦（虽然目前有些有多个解的数独也不一定能判断的出来）");
return;
}
}
for (let i = 0; i < 9; i++) {
if (i % 3 == 0) {
sum = 0;
}
for (let j = 0; j < 9; j++) {
if (soku[j][i] != 0) break;
if (j == 8) sum++;
}
if (sum == 2) {
alert("这个数独肯定没有唯一解啦（虽然目前有些有多个解的数独也不一定能判断的出来）");
return;
}
}
}
//原来的
// for(let i=0;i<9;i){
// for(let j=0;j<9;j++){
// let currentNum=soku[i][j]
// if(currentNum!=0){
// numLeft[i][j]=0;//被占用了
// for(let k=0;k<9;k++){//做笔记
// if(numLeft[k][j]!=0&¬es[k][j][currentNum-1]==1){
// notes[k][j][currentNum-1]=0;
// numLeft[k][j]--;
// }
// if(numLeft[i][k]!=0&¬es[i][k][currentNum-1]==1){
// notes[i][k][currentNum-1]=0;
// numLeft[i][k]--;
// }
// if(numLeft[parseInt(i/3)*3+parseInt(k/3)][parseInt(j/3)*3+(k%3)]!=0&¬es[parseInt(i/3)*3+parseInt(k/3)][parseInt(j/3)*3+(k%3)][currentNum-1]==1){
// notes[parseInt(i/3)*3+parseInt(k/3)][parseInt(j/3)*3+(k%3)][currentNum-1]=0;
// numLeft[parseInt(i/3)*3+parseInt(k/3)][parseInt(j/3)*3+(k%3)][currentNum-1]--;
// }
// }
// }
// }
// }
{//解数独，抄的 FIXME 无解的时候会卡住
//press "show answer" button and show answer then
function get_answer() {
var bool = check_input();
if (bool) {
var grid = readAPuzzle();
if (!isValidGrid(grid)) {
alert("Invalid input, please try again!");
}
else {
if (search(grid)) {
output_ans();
}
else {
alert("Found no solution!");
}
}
}
}
//check if the input are valid
function check_input() {
return true
}
//read a puzzle from the web page
function readAPuzzle() {
var arr = new Array();
for (var i = 0; i < 81; i++) {
arr[i] = soku[Math.floor(i / 9)][i % 9];
}
var grid = new Array();
for (var i = 0; i < 9; i++) {
grid[i] = new Array();
for (var j = 0; j < 9; j++) {
grid[i][j] = 0;
}
}
for (var i = 0; i < 81; i++) {
grid[Math.floor(i / 9)][i % 9] = arr[i];
}
return grid
}
//Obtain a list of free cells from the puzzle
function getFreeCellList(grid: number[][]) {
var freeCellList = new Array();
var index = 0
for (var i = 0; i < 9; i++) {
for (var j = 0; j < 9; j++) {
if (grid[i][j] == 0) {
freeCellList[index] = new Array(i, j);
index++;
}
}
}
return freeCellList
}
//Check whether grid[i][j] is valid in the grid
function isValid(i: number, j: number, grid: number[][]) {
//Check whether grid[i][j] is valid at the i's row
for (var column = 0; column < 9; column++) {
if ((column != j) && (grid[i][column] == grid[i][j])) {
return false
}
}
//Check whether grid[i][j] is valid at the j's column
for (var row = 0; row < 9; row++) {
if ((row != i) && (grid[row][j] == grid[i][j])) {
return false
}
}
//Check whether grid[i][j] is valid at the 3-by-3 box
for (var row = Math.floor(i / 3) * 3; row < Math.floor(i / 3) * 3 + 3; row++) {
for (var col = Math.floor(j / 3) * 3; col < Math.floor(j / 3) * 3 + 3; col++) {
if ((row != i) && (col != j) && (grid[row][col] == grid[i][j])) {
return false
}
}
}
return true //The current value at grid[i][j] is valid
}
//Check whether the fixed cells are valid in the grid
function isValidGrid(grid: number[][]) {
for (var i = 0; i < 9; i++) {
for (var j = 0; j < 9; j++) {
if ((grid[i][j] < 0) || (grid[i][j] > 9) || ((grid[i][j] != 0) && (!isValid(i, j, grid)))) {
return false
}
}
}
return true
}
//Search for a solution
function search(grid: number[][]) {
var freeCellList = getFreeCellList(grid);
var numberOfFreeCells = freeCellList.length;
if (numberOfFreeCells == 0) {
return true
}
var k = 0; //Start from the first free cell
while (true) {
var i = freeCellList[k][0];
var j = freeCellList[k][1];
if (grid[i][j] == 0) {
grid[i][j] = 1;
}
if (isValid(i, j, grid)) {
if (k + 1 == numberOfFreeCells) {
//no more free cells
return true //A solution is found
}
else {
//Move to the next free cell
k++;
}
}
else {
if (grid[i][j] < 9) {
//Fill the free cell with the next possible value
grid[i][j]++;
}
else {
//grid[i][j] is 9,backtrack
while (grid[i][j] == 9) {
if (k == 0) {
return false //No possible value
}
grid[i][j] = 0; //Reset to free cell
k--; //Backtrack to the preceding free cell
i = freeCellList[k][0];
j = freeCellList[k][1];
}
//Fill the free cell with the next possible value
//search continues from this free cell at k
grid[i][j]++;
}
}
}
return true //A solution is found
}
//output the answer on the web page
function output_ans() {
var grid = readAPuzzle();
var grid_original = readAPuzzle();
if (search(grid)) {
for (var i = 0; i < 81; i++) {
if (grid[Math.floor(i / 9)][i % 9] != grid_original[Math.floor(i / 9)][i % 9]) {
document.getElementsByTagName("input")[i].value = grid[Math.floor(i / 9)][i % 9];
}
}
}
}
get_answer();
}
}
function Clear(){
for (let i = 0; i < 81; i++) {
document.getElementsByTagName("input")[i].value = '';
}
InputSoku();
}
function InputExample() {
for (let i = 0; i < 81; i++) {
document.getElementsByTagName("input")[i].value = '';
}
(<HTMLInputElement>document.getElementById("r0c4")).value = '5';
(<HTMLInputElement>document.getElementById("r0c8")).value = '6';
(<HTMLInputElement>document.getElementById("r1c2")).value = '4';
(<HTMLInputElement>document.getElementById("r1c5")).value = '8';
(<HTMLInputElement>document.getElementById("r1c8")).value = '2';
(<HTMLInputElement>document.getElementById("r2c0")).value = '6';
(<HTMLInputElement>document.getElementById("r2c1")).value = '1';
(<HTMLInputElement>document.getElementById("r2c6")).value = '8';
(<HTMLInputElement>document.getElementById("r2c7")).value = '5';
(<HTMLInputElement>document.getElementById("r3c0")).value = '3';
(<HTMLInputElement>document.getElementById("r3c2")).value = '2';
(<HTMLInputElement>document.getElementById("r3c3")).value = '5';
(<HTMLInputElement>document.getElementById("r3c5")).value = '6';
(<HTMLInputElement>document.getElementById("r3c7")).value = '1';
(<HTMLInputElement>document.getElementById("r5c1")).value = '9';
(<HTMLInputElement>document.getElementById("r5c3")).value = '2';
(<HTMLInputElement>document.getElementById("r5c5")).value = '3';
(<HTMLInputElement>document.getElementById("r5c6")).value = '6';
(<HTMLInputElement>document.getElementById("r5c8")).value = '7';
(<HTMLInputElement>document.getElementById("r6c1")).value = '6';
(<HTMLInputElement>document.getElementById("r6c2")).value = '1';
(<HTMLInputElement>document.getElementById("r6c7")).value = '2';
(<HTMLInputElement>document.getElementById("r6c8")).value = '9';
(<HTMLInputElement>document.getElementById("r7c0")).value = '7';
(<HTMLInputElement>document.getElementById("r7c3")).value = '6';
(<HTMLInputElement>document.getElementById("r7c6")).value = '5';
(<HTMLInputElement>document.getElementById("r8c0")).value = '2';
(<HTMLInputElement>document.getElementById("r8c4")).value = '4';
InputSoku()
}
function KeyUp() {
// event.target.value = event.target.value.replace(/[^1-9]/g,'');if(event.target.value != ''){event.target.blur();}
}