我的javascript暴力递归数独解算器是否内存不足?

我的javascript暴力递归数独解算器是否内存不足?,javascript,memory,recursion,sudoku,Javascript,Memory,Recursion,Sudoku,我写了一个javascript程序来解决数独问题。它似乎在工作,但突然停止了。 这就是原因吗我是javascript新手,我能做些什么来修复它 我该如何解决这个问题?谢谢 代码如下: var博弈=[ [0, 0, 9, 0, 5, 7, 0, 6, 0], [0, 7, 0, 6, 0, 0, 0, 0, 0], [8, 0, 0, 0, 1, 0, 7, 5, 0], [0, 0, 0, 3, 6, 0, 1, 7, 2], [4, 1, 2, 0, 0, 0, 6, 9, 3], [6

我写了一个javascript程序来解决数独问题。它似乎在工作,但突然停止了。

这就是原因吗我是javascript新手,我能做些什么来修复它

我该如何解决这个问题?谢谢

代码如下:


var博弈=[
[0, 0, 9, 0, 5, 7, 0, 6, 0],
[0, 7, 0, 6, 0, 0, 0, 0, 0],
[8, 0, 0, 0, 1, 0, 7, 5, 0],
[0, 0, 0, 3, 6, 0, 1, 7, 2],
[4, 1, 2, 0, 0, 0, 6, 9, 3],
[6, 3, 7, 0, 2, 9, 0, 0, 0],
[0, 4, 1, 0, 5, 0, 0, 0, 7],
[0, 0, 0, 0, 0, 3, 0, 8, 0],
[0, 5, 0, 2, 9, 0, 4, 0, 0]
];
函数解算(x,y,g){
var-nextx;
var-nexty=y;
if(x<9 | | y<9){
如果(g[x][y]==0){
对于(i=1;i<10;i++){
g[x][y]=i;
如果(检查(x,y,i,g)=真){
if(x<8){
nextx=x+1;
}否则{
nexty=y+1;
nextx=0;
}
console.log(x+''+y+''+i+''+g[x][y]);
求解(nextx,nexty,g);
}否则{
如果(x!=0&&y!=0){
返回;
}
}
}
}否则{
if(x<8){
nextx=x+1;
}否则{
nexty=y+1;
nextx=0;
}
log(x++'+y++''b'++'+g[x][y]);
求解(nextx,nexty,g);
返回;
}
}否则{
if(checkall(g)=真){
对于(变量i=0;i<9;i++){
写(g[i]+'
'); }; }否则{ 文档。写入(“无法解决”); } } } 功能检查(x、y、i、g){ var-tempx=0; var-tempy=0; var-tempb=0; 变量a,b; 对于(j=0;j<9;j++){ 如果(g[x][j]==i){ tempx=tempx+1; } 如果(g[j][y]==i){ 坦比=坦比+1; } } if(x<3){ a=0; } if(x<6){ a=3; } if(x<9){ a=6; } if(y<3){ b=0; } if(y<6){ b=3; } if(y<9){ b=6; } 对于(c=a;c1 | | tempy>1 | | tempb>1){ 返回false; }否则{ 返回true; } } 功能检查全部(g){ var-temp1=0; var-temp2=0; 对于(变量i=0;i<10;i++){ 对于(变量x=0;x<9;x++){ 对于(变量y=0;y<9;y++){ 如果(g[x][y]==i){ temp1=temp1+1; } 如果(g[y][x]==i){ temp2=temp2+1; } }; 如果(temp1>1 | | temp2>1){ 返回false; }否则{ temp1=0; temp2=0; } } } 返回真值 } 解决(0,0,游戏);
确保检查函数返回的响应:

    var div = document.getElementById('output');
将失败,并且div将为“未定义”,因为在示例中没有具有“output”id的开始div标记

如果将try/catch子句添加到函数中,您将看到报告的错误

我可以看出,您实际上并没有在代码中使用“div”

我只是稍微修改了您的代码,因为我在运行代码时没有发现任何错误:

    <html>
    <body>
      <script>
        var game = [
          [0, 0, 9, 0, 5, 7, 0, 6, 0],
          [0, 7, 0, 6, 0, 0, 0, 0, 0],
          [8, 0, 0, 0, 1, 0, 7, 5, 0],
          [0, 0, 0, 3, 6, 0, 1, 7, 2],
          [4, 1, 2, 0, 0, 0, 6, 9, 3],
          [6, 3, 7, 0, 2, 9, 0, 0, 0],
          [0, 4, 1, 0, 5, 0, 0, 0, 7],
          [0, 0, 0, 0, 0, 3, 0, 8, 0],
          [0, 5, 0, 2, 9, 0, 4, 0, 0]
        ];
        var intNestedCalls = 0;
        function solve(x, y, g) {
          var nextx;
          var nexty = y;
          intNestedCalls++; //Count numer of nested calls
          if (x < 9 || y < 9) {
            if (g[x][y] == 0) {
              for (i = 1; i < 10; i++) {
                g[x][y] = i;
                if (check(x, y, i, g) == true) {
                  if (x < 8) {
                    nextx = x + 1;
                  } else {
                    nexty = y + 1;
                    nextx = 0;
                  }
                  console.log(x + ' ' + y + ' ' + i + ' ' + g[x][y]);
                  solve(nextx, nexty, g);
                } else {
                  if (x != 0 && y != 0) {
    //Break here so we drop out and exit the function              
                    break;
                  }
                }
              }
            } else {
              if (x < 8) {
                nextx = x + 1;
              } else {
                nexty = y + 1;
                nextx = 0;
              }
              console.log(x + ' ' + y + ' ' + 'b' + ' ' + g[x][y]);
              solve(nextx, nexty, g);
    //No need to return here, fall through and exit normally
    //        return;                  
            }
          } else {
            if (checkall(g) == true) {
              for (var i = 0; i < 9; i++) {
                document.write(g[i] + '</br>');
              };
            } else {
              document.write("can't solve");
            }
          }
          intNestedCalls--; //Update nested call counter
        }
        function check(x, y, i, g) {
          var tempx = 0;
          var tempy = 0;
          var tempb = 0;
          var a, b;
          for (j = 0; j < 9; j++) {
            if (g[x][j] == i) {
              tempx = tempx + 1;
            }
            if (g[j][y] == i) {
              tempy = tempy + 1;
            }
          }
          if (x < 3) {
            a = 0;
          }
          if (x < 6) {
            a = 3;
          }
          if (x < 9) {
            a = 6;
          }
          if (y < 3) {
            b = 0;
          }
          if (y < 6) {
            b = 3;
          }
          if (y < 9) {
            b = 6;
          }
          for (c = a; c < a + 3; c++) {
            for (d = b; d < b + 3; d++) {
              if (g[a][b] == i) {
                tempb = tempb + 1;
              }
            }
          }
          if (tempx > 1 || tempy > 1 || tempb > 1) {
            return false;
          } else {
            return true;
          }
        }
        function checkall(g) {
          var temp1 = 0;
          var temp2 = 0;
          for (var i = 0; i < 10; i++) {
            for (var x = 0; x < 9; x++) {
              for (var y = 0; y < 9; y++) {
                if (g[x][y] == i) {
                  temp1 = temp1 + 1;
                }
                if (g[y][x] == i) {
                  temp2 = temp2 + 1;
                }
              };
              if (temp1 > 1 || temp2 > 1) {
                return false;
              } else {
                temp1 = 0;
                temp2 = 0;
              }
            }
          }
          return true;
        }
        solve(0, 0, game);    
    alert("Complete!");    
      </script>
      </div>
    </body>
    </html>

var博弈=[
[0, 0, 9, 0, 5, 7, 0, 6, 0],
[0, 7, 0, 6, 0, 0, 0, 0, 0],
[8, 0, 0, 0, 1, 0, 7, 5, 0],
[0, 0, 0, 3, 6, 0, 1, 7, 2],
[4, 1, 2, 0, 0, 0, 6, 9, 3],
[6, 3, 7, 0, 2, 9, 0, 0, 0],
[0, 4, 1, 0, 5, 0, 0, 0, 7],
[0, 0, 0, 0, 0, 3, 0, 8, 0],
[0, 5, 0, 2, 9, 0, 4, 0, 0]
];
var intNestedCalls=0;
函数解算(x,y,g){
var-nextx;
var-nexty=y;
intNestedCalls++;//计算嵌套调用的数量
if(x<9 | | y<9){
如果(g[x][y]==0){
对于(i=1;i<10;i++){
g[x][y]=i;
如果(检查(x,y,i,g)=真){
if(x<8){
nextx=x+1;
}否则{
nexty=y+1;
nextx=0;
}
console.log(x+''+y+''+i+''+g[x][y]);
求解(nextx,nexty,g);
}否则{
如果(x!=0&&y!=0){
//在这里中断,以便退出并退出函数
打破
}
}
}
}否则{
if(x<8){
nextx=x+1;
}否则{
nexty=y+1;
nextx=0;
}
log(x++'+y++''b'++'+g[x][y]);
求解(nextx,nexty,g);
//无需在此返回,正常通过并退出
//返回;
}
}否则{
if(checkall(g)=真){
对于(变量i=0;i<9;i++){
写(g[i]+'
'); }; }否则{ 文档。写入(“无法解决”); } } intNestedCalls--;//更新嵌套调用计数器 } 功能检查(x、y、i、g){ var-tempx=0; var-tempy=0; var-tempb=0; 变量a,b; 对于(j=0;j<9;j++){ 如果(g[x][j]==i){ tempx=tempx+1; } 如果(g[j][y]==i){ 坦比=坦比+1; } } if(x<3){ a=0; }
    if ( x < 9 && y < 9 ) {
<!DOCTYPE html>
<html>
<body>
    <script>

            var board = [
            [5,3,0,0,7,0,0,0,0],
            [6,0,0,1,9,5,0,0,0],
            [0,9,8,0,0,0,0,6,0],
            [8,0,0,0,6,0,0,0,3],
            [4,0,0,8,0,3,0,0,1],
            [7,0,0,0,2,0,0,0,6],
            [0,6,0,0,0,0,2,8,0],
            [0,0,0,4,1,9,0,0,5],
            [0,0,0,0,8,0,0,7,9],
            ];

        function solve(a){
            var zeros = [];
            for(i=0;i<Math.pow(a.length,2);i++){
                var x = i%a.length;
                var y = (i-x)/a.length;
                if(board[y][x]===0){
                    zeros.push([x,y,1]);
                }
            }
            var count = 0;
            var total = [];
            for(i=0;i<zeros.length;i++){
                console.log("s");
                count+=1;
                var x = zeros[i][0];
                if(zeros[i][2]<board.length+1){
                    for(j=zeros[i][2];j<board.length+1;j++){
                        if(check(x,y,j)==true){
                            a[y][x] = j;
                            zeros[i][2] = j + 1;
                            j=board.length+1;
                        }else if(check(x,y,j)==false && j===board.length){
                            j=board.length+1;
                            zeros[i][2] = 1;
                            i-=2;
                            a[y][x] = 0;
                        }
                    }
                }else{
                    zeros[i][2] = 1;
                    a[y][x] = 0;
                    i-=2;
                }
                for(j=0;j<board.length;j++){
                    console.log(board[j][0],board[j][1],board[j][2],board[j][3],board[j][4],board[j][5],board[j][6],board[j][7],board[j][8]);
                }
                console.log(count);
            }
        }

        function check(a,b,c){
            var right = true;
            for(k=0;k<board.length;k++){
                if(board[b][k]===c || board[k][a]===c){
                    right = false;
                }
            }
            for(k=0;k<Math.sqrt(board.length);k++){
                for(l=0;l<Math.sqrt(board.length);l++){
                    if(board[Math.sqrt(board.length)*Math.floor(b/Math.sqrt(board.length))+k][Math.sqrt(board.length)*Math.floor(a/Math.sqrt(board.length))+l]==c){
                        right = false;
                    }
                }
            }
            if(right === true){
                return true;
            }else{
                return false;
            }
        }

        solve(board);
    </script>
</body>
</html>