生生把寫過的java版改成javascript版，第一次寫，很不專業，見諒。唉，我有多閒。
var 數獨 = {
初始化：函數（str）{
this.blank = [];
this.fixed = [];
this.cell = [];
this.Trials=[];
對於 (i = 0; i
var chr = str.charCodeAt(i);
if (chr == 48) {
this.cell[i] = 511;
this.blank.push(i);
}其他{
this.cell[i] = 1
this.fixed.push(i);
}
}
},
顯示板：函數 () {
var 板 = "";
for (var i = 0; i
if (i % 9 == 0) {
board = board.concat("n");
}
board = board.concat("[");
for (var j = 0; j
if ((this.cell[i] >> j & 1) == 1) {
board = board.concat(String.fromCharCode(j 49));
}
}
board = board.concat("]");
}
返回板；
},
檢查：函數 () {
var 檢查點 = [0, 12, 24, 28, 40, 52, 56, 68, 80];
for (檢查點中的 var i) {
var r, b, c;
r = b = c = this.cell[檢查點[i]];
對於 (j = 0; j
c ^= this.cell[this.getX(checkpoint[i])[j]];
b ^= this.cell[this.getX(checkpoint[i])[8 j]];
r ^= this.cell[this.getX(checkpoint[i])[16 j]];
}
if ((r & b & c) != 0x1FF) {
回傳錯誤；
}
}
返回真;
},
位計數：函數 (i) {
var n = 0;
for (var j = 0; j
if ((i >> j & 1) == 1)
n ;
}
返回 n;
},
numberOfTrailingZeros: 函數(i){
var n = 0;
for (var j = 0; j
if ((i >> j & 1) ==0)
n ;
其他{
休息；
}
}
回n；
},
updateCandidates: function () {
for (var i in this.fixed) {
var opt = 0x1FF ^ this.cell[this.fixed[i]];
for (var j = 0; j
this.cell[this.getX(this.fixed[i])[j]] &= opt;
//！
if (this.cell[this.getX(this.fixed[i])[j]] == 0) {
//console.log("Error-0候選:" x[this.fixed[i]][j]);
回傳錯誤；
}
}
}
返回真;
},
eekUniqueCandidate: 函數 () {
for (var bidx in this.blank) {
var 行 = 0，列 = 0，框 = 0;
for (i = 0; i
row |= this.cell[this.getX(this.blank[bidx])[i]];
框 |= this.cell[this.getX(this.blank[bidx])[8 i]];
col |= this.cell[this.getX(this.blank[bidx])[16 i]];
}
if (this.bitCount(this.cell[this.blank[bidx]] & ~row) == 1) {
this.cell[this.blank[bidx]] &= ~row;
繼續；
}
if (this.bitCount(this.cell[this.blank[bidx]] & ~col) == 1) {
this.cell[this.blank[bidx]] &= ~col;
繼續；
}
if (this.bitCount(this.cell[this.blank[bidx]] & ~box) == 1) {
this.cell[this.blank[bidx]] &= ~box;
}
}
},
eekFilledable: 函數 () {
this.fixed = [];
var _del=[];
for (var i in this.blank) {
if (this.bitCount(this.cell[this.blank[i]]) == 1) {
this.fixed.push(this.blank[i]);
//console.log("已修正:" this.blank[i] "=>" this.cell[this.blank[i]]);
//this.blank.splice(i, 1);//在循環中刪除它會導致bug
_del.push(i);
}
}
while(_del.length>0){
this.blank.splice(_del.pop(), 1);
}
},
eekMutexCell: 函數 () {
var 二 = [];
for (var n in this.blank) {
if (this.bitCount(this.cell[this.blank[n]]) == 2) {
Two.push(this.blank[n]);
}
}
for (var i = 0; i
for (var j = i 1; j
if (this.cell[two[i]] == this.cell[two[j]]) {
var opt = ~this.cell[two[i]];
if (parseInt(two[i] / 9) ==parseInt(two[j] / 9)) {
對於 (n = 0; n
this.cell[this.getX(two[i])[n]] &= opt;
}
}
if ((二[i] - 二[j]) % 9 == 0) {
對於 (n = 8; n
this.cell[this.getX(two[i])[n]] &= opt;
}
}
if ((parseInt(two[i] / 27) * 3 parseInt(two[i] % 9 / 3)) == (parseInt(two[j] / 27) * 3 parseInt(two[j] % 9 / 3 ) ) ））{
對於 (n = 16; n
this.cell[this.getX(two[i])[n]] &= opt;
}
}
this.cell[two[j]] = ~opt;
}
}
}
},
basicSolve: 函數 () {
做{
if (!this.updateCandidates(this.fixed)) {
this.backForward();
}
this.seekUniqueCandidate();
this.seekMutexCell();
this.seekFilledable();
} while (this.fixed.length != 0);
return this.blank.length == 0;
},
setTrialCell: function() {
for (var i in this.blank) {
if (this.bitCount(this.cell[this.blank[i]]) == 2) {
var 試驗值 = 1
var waitingValue = this.cell[this.blank[i]] ^ TrialValue;
//console.log("try:[" this.blank[i] "]->" (this.numberOfTrailingZeros(TrialValue) 1) "#" (this.numberOfTrailingZeros(waitingValue) 1));
this.cell[this.blank[i]] = TrialValue;
this.trys.push(this.createTrialPoint(this.blank[i], waitingValue, this.cell));
返回真;
}
}
回傳錯誤；
},
實體：函數（）{
if (this.Trials.length==0) {
console.log("也許沒有解決方法！");
返回；
}
var back = this.Trials.pop();
this.reset(back.data);
this.cell[back.idx] = back.val;
this.fixed.push(back.idx);
//console.log("back:[" back.idx "]->" (this.numberOfTrailingZeros(back.val) 1));
},
重置：函數（資料）{
this.blank=[];
this.fixed=[];
this.cell=data.concat();
for (var i = 0; i
if (this.bitCount(this.cell[i]) != 1) {
this.blank.push(i);
}其他{
this.fixed.push(i);
}
}
},
TrialSolve: 函數() {
while (this.blank.length!=0) {
if (this.setTrialCell()) {
this.basicSolve();
}其他{
if (this.Trials.length==0) {
//console.log("無法後退！可能沒有解決方法！");
休息；
}其他{
this.backForward();
this.basicSolve();
}
}
}
},
播放：函數（）{
console.log(this.showBoard());
var start = new Date().getMilliseconds();
if (!this.basicSolve()) {
this.TrialSolve();
}
var end = new Date().getMilliseconds();
console.log(this.showBoard());
if (this.check()) {
console.log("[" (end - start) "ms OK!]");
}其他{
console.log("[" (end - start) "ms，無法解決？");
}
//返回this.showBoard();
},
getX:函數(idx){
var Neighbors=new Array(24);
var box=new Array(0,1,2,9,10,11,18,19,20);
var r=parseInt(idx/9);
var c=idx%9;
var xs=parseInt(idx/27)*27 parseInt(idx%9/3)*3;
var i=0;
for(var n=0;n
if(n==c) 繼續;
鄰居[i]=r*9 n;
}
for(var n=0;n
if(n==r)繼續;
鄰居[i]=c n*9;
}
for(var n=0;n
var t=xs box[n];
if(t==idx)繼續;
鄰居[i]=t;
}
返回鄰居；
},
createTrialPoint:function(idx, val, 板) {
var tp = {};
tp.idx = idx;
tp.val = val;
tp.data = board.concat();
返回 tp;
}
};
//數獨.init("000000500000008300600100000080093000000000020700000000058000000000200017090000060
//數獨.init("530070000600195000098000060800060003400803001700020006060000280000419005000008
數獨.init("800000000003600000070090200050007000000045700000100030001000068008500010090000400");
數獨.play();
以上就是關於使用javascript實作數獨解法的全部程式碼了，希望大家能夠喜歡。
