Comments (4)
/**
* @param {character[][]} board
* @param {string} word
* @return {boolean}
*/
var exist = function (board, word) {
var visited = Array.from({
length: board.length
}, () => new Array(board.length).fill(false));
for (var i = 0; i < board.length; i++) {
for (var j = 0; j < board[i].length; j++) {
if (board[i][j] == word[0]) {
if (temp(i, j, 0)) {
return true;
}
}
}
}
return false;
function temp(x, y, index) {
if (x < 0 || y < 0 || x >= board.length || y >= board[0].length) return false;
if (visited[x][y]) return false;
if (index == word.length - 1 && board[x][y] == word[index]) return true;
if (board[x][y] != word[index]) return false;
visited[x][y] = true;
var rel = temp(x - 1, y, index + 1) || temp(x + 1, y, index + 1) || temp(x, y - 1, index + 1) || temp(x, y + 1, index + 1);
if (rel) return true;
visited[x][y] = false;
return false;
}
};
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听到召唤, 马上认领~~ ✌️ 😄
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已被@xiaowei wan 领取
from leetcode.
from leetcode.
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