Node.js) 백준 15926번: 현욱은 괄호왕이야!!

https://www.acmicpc.net/problem/15926

15926번: 현욱은 괄호왕이야!!

const fs = require('fs');
const input = fs.readFileSync("./dev/stdin").toString().trim().split('\n');
const N = input[0]
const bracket = input[1].split(''); 
let stack = [];


for(let i = 0; i<N; i++){
  const now = bracket[i];
  if(stack.length==0 || now=='('){
    stack.push(now)
  }else{
      let temp = 0;
      while(typeof stack[stack.length-1] == 'number'){
        temp+=stack.pop();
      }
      if(stack.length==0){
        stack.push(temp)
        stack.push(')')
      }else if(stack[stack.length-1]=='('){
        stack.pop();
        temp+=2;
        while(typeof stack[stack.length-1] == 'number'){
          temp+=stack.pop();
        }
        stack.push(temp);
      }else{
        stack.push(temp);
        stack.push(')')
      }
  }
}
const answer = stack.filter(v=>typeof v =='number');

if(answer.length==0){
  console.log(0)
}else{
  console.log(Math.max(...answer))
}