Created
February 22, 2019 18:06
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生成括号问题-卡特兰数
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| function generateBracket(res, str, left, right) { | |
| if (left > right) return; | |
| console.log(`str > ${str}, left > ${left}, right > ${right}`) | |
| if (left > 0) { | |
| generateBracket(res, str + '(', left - 1, right); | |
| } | |
| if (right > 0) { | |
| generateBracket(res, str + ')', left, right - 1); | |
| } | |
| if (left === 0 && right === 0) { | |
| res.push(str) | |
| return; | |
| } | |
| } | |
| var res = [] | |
| generateBracket(res, '', 3, 3) |
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