Portfolio

정다윤 풀이


const filePath = process.platform === "linux" ? "/dev/stdin" : "input.txt";
const input = require("fs").readFileSync(filePath).toString().trim();

function checkValidation(stack, token) {
  const reverse = token == ")" ? "(" : "[";
  const point = token == ")" ? 2 : 3;
  let sum = 0;

  while (stack.length) {
    let top = stack.pop();

    if (top === reverse) {
      let result = sum ? sum * point : point;
      stack.push(result);
      return stack;
    } else if (typeof top === "number") {
      sum += top;
    } else {
      return 0;
    }
  }

  return 0;
}

function solution(input) {
  let stack = [];

  for (let w of input.split("")) {
    if (!stack) {
      return 0;
    }

    if (w === "(" || w === "[") {
      stack.push(w);
    } else if (w === ")") {
      stack = checkValidation(stack, ")");
    } else if (w === "]") {
      stack = checkValidation(stack, "]");
    } else {
      return 0;
    }
  }

  if (!stack) return 0;

  const answer = stack.reduce((acc, cur) => acc + cur, 0);

  return typeof answer === "number" ? answer : 0;
}

// 제출
let answer = solution(input);
console.log(answer);

김민수 풀이


let input = require('fs').readFileSync("/dev/stdin").toString().trim();

let stack = [];
let [answer, value] = [0, 1];
let [inType, outType] = [['(','['], [')',']']];

for(let i = 0; i < input.length; i++){
  
  if(inType.includes(input[i])){
    stack.push(input[i]);
    value *= inType.indexOf(input[i]) + 2
  }else{

    if(stack.length === 0){
      answer = 0;
      break;
    }

    let outIndex = outType.indexOf(input[i]);
    if(outIndex === -1 || inType.indexOf(stack.pop()) !== outIndex){
      answer = 0;
      break;
    }

    if(inType.indexOf(input[i-1]) == outIndex) answer += value;
    
    value /= outIndex + 2
  }
}

if(stack.length !== 0) answer = 0;

console.log(answer)

하송희 풀이


const fs = require("fs");
const filePath = process.platform === "linux" ? "/dev/stdin" : "./input.txt";
let input = fs.readFileSync(filePath).toString().trim().split("");
let tmpArr = [];

for (i = 0; i < input.length; i++) {
  if (input[i] == "(" || input[i] == "[") {
    tmpArr.push(input[i]);
  }

  if (input[i] == ")") {
    if (tmpArr[tmpArr.length - 1] == "(") {
      tmpArr.pop();
      tmpArr.push(2);
    } else if (typeof tmpArr[tmpArr.length - 1] == "number") {
      if (tmpArr[tmpArr.length - 2] == "(") {
        let tmpNum = tmpArr.pop();
        tmpArr.pop();
        tmpArr.push(tmpNum * 2);
      } else if (typeof tmpArr[tmpArr.length - 2] == "number") {
        let tmpNum1 = tmpArr.pop();
        let tmpNum2 = tmpArr.pop();
        while (typeof tmpArr[tmpArr.length - 1] == "number") {
          tmpNum1 += tmpNum2;
          tmpNum2 = tmpArr.pop();
        }
        tmpArr.pop();
        tmpArr.push((tmpNum1 + tmpNum2) * 2);
      } else return console.log(0);
    } else return console.log(0);
  }

  if (input[i] == "]") {
    if (tmpArr[tmpArr.length - 1] == "[") {
      tmpArr.pop();
      tmpArr.push(3);
    } else if (typeof tmpArr[tmpArr.length - 1] == "number") {
      if (tmpArr[tmpArr.length - 2] == "[") {
        let tmpNum = tmpArr.pop();
        tmpArr.pop();
        tmpArr.push(tmpNum * 3);
      } else if (typeof tmpArr[tmpArr.length - 2] == "number") {
        let tmpNum1 = tmpArr.pop();
        let tmpNum2 = tmpArr.pop();
        while (typeof tmpArr[tmpArr.length - 1] == "number") {
          tmpNum1 += tmpNum2;
          tmpNum2 = tmpArr.pop();
        }
        tmpArr.pop();
        tmpArr.push((tmpNum1 + tmpNum2) * 3);
      } else return console.log(0);
    } else return console.log(0);
  }
}

let result = tmpArr.reduce((acc, cur) => acc + cur);
if (typeof result != "number") return console.log(0);
console.log(result);

1. 괄호의 값

정다윤 풀이

김민수 풀이

하송희 풀이

안재현 풀이

이승민 풀이