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529-Minesweeper.js
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529-Minesweeper.js
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/**
* @param {character[][]} board
* @param {number[]} click
* @return {character[][]}
*/
var updateBoard = function (board, click) {
const res = board;
if (board[click[0]][click[1]] === 'M') {
res[click[0]][click[1]] = 'X';
return res;
}
const countM = (row, col) => {
let count = 0;
for (let i = row - 1; i < row + 2; i++) {
for (let j = col - 1; j < col + 2; j++) {
if (board[i] && board[i][j]) {
if (board[i][j] === 'M') {
count += 1;
}
}
}
}
return count;
};
const showInfo = (row, col) => {
const num = countM(row, col);
if (num === 0) {
res[row][col] = 'B';
for (let i = row - 1; i < row + 2; i++) {
for (let j = col - 1; j < col + 2; j++) {
// i,j在board里存在
// 不是当前的ij
// 已经展示过的就不再展示了
if (board[i] && board[i][j] && !(i === row && j === col) && res[i][j] == 'E') {
showInfo(i, j);
}
}
}
} else {
res[row][col] = `${num}`;
}
};
showInfo(click[0], click[1]);
return res;
};