[leetcode] 22. Generate Parentheses(medium)
原題
思路: 利用DFS,搜尋每一種情況,同時先加“(”後加")",保證()匹配正確。
最近開始學習前端,嘗試用js來寫。
const generate = function (res,content, left, right) { if (left === 0) { res.push(content + ')'.repeat(right)); return; } if (left <= right && left > 0) { generate(res,content + '(', left - 1, right); } if (right > 0) { generate(res,content + ')', left, right - 1); } } var generateParenthesis = function(n) { const res = []; generate(res,'', n, n); return res; };
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