题解 | #括号生成#

超过0.00%的提交代码。。呜呜呜

  * 
  * @param n int整型 
  * @return string字符串一维数组
  */
function generateParenthesis( n ) {
    // write code here
    let res=[]
    let string=""
    if(n==0){return res}
    build(n,n,string,res)
    return res
}
function build(n,m,str,res){
    let i=n//(
    let j=m//)
    console.log(res)
    if(i>=j&&i!=0&&j!=0){
        str=str+'(';
        let i2=i-1
        let j2=j
        build(i2,j2,str,res)
    }
    else{//i<j
        if(i>0){
            let str1=str+'('
            let i2=i-1
            let j2=j
            build(i2,j2,str1,res)}
        if(j>0){
            let str2=str+')'
            let i2=i
            let j2=j-1
            build(i2,j2,str2,res)
        }
        else{
            console.log(res)
            res.push(str)
        }
    }
   return ;
}
module.exports = {
    generateParenthesis : generateParenthesis
};