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[c++] ๋ฐฑ์ค€(BOJ)14888 - ์—ฐ์‚ฐ์ž ๋ผ์›Œ๋„ฃ๊ธฐ
Algorithm/๋ฐฑ์ค€(BOJ)

[c++] ๋ฐฑ์ค€(BOJ)14888 - ์—ฐ์‚ฐ์ž ๋ผ์›Œ๋„ฃ๊ธฐ

2022. 2. 11. 14:59
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๐Ÿ”— ๋ฌธ์ œ ๋งํฌ

 

14888๋ฒˆ: ์—ฐ์‚ฐ์ž ๋ผ์›Œ๋„ฃ๊ธฐ

์ฒซ์งธ ์ค„์— ์ˆ˜์˜ ๊ฐœ์ˆ˜ N(2 ≤ N ≤ 11)๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. ๋‘˜์งธ ์ค„์—๋Š” A1, A2, ..., AN์ด ์ฃผ์–ด์ง„๋‹ค. (1 ≤ Ai ≤ 100) ์…‹์งธ ์ค„์—๋Š” ํ•ฉ์ด N-1์ธ 4๊ฐœ์˜ ์ •์ˆ˜๊ฐ€ ์ฃผ์–ด์ง€๋Š”๋ฐ, ์ฐจ๋ก€๋Œ€๋กœ ๋ง์…ˆ(+)์˜ ๊ฐœ์ˆ˜, ๋บ„์…ˆ(-)์˜ ๊ฐœ์ˆ˜, 

www.acmicpc.net

๐Ÿ“‚ ๋ถ„๋ฅ˜

์ˆœ์—ด ๊ตฌํ˜„

๐Ÿ’ก ํ’€์ด

์ด ๋ฌธ์ œ๋Š” ํ’€์ด ๋ฐฉ์‹์ด ์—ฌ๋Ÿฌ ๊ฐ€์ง€ ์กด์žฌํ•  ๊ฒƒ ๊ฐ™์€๋ฐ ๋‚˜๋Š” ์ˆœ์—ด์„ ํ†ตํ•ด ํ’€์—ˆ๋‹ค.

์—ฐ์‚ฐ์ž ๊ฐœ์ˆ˜๋ฅผ ์ž…๋ ฅ ๋ฐ›์œผ๋ฉด์„œ op๋ผ๋Š” vector์— ์—ฐ์‚ฐ์ž ๊ฐœ์ˆ˜๋งŒํผ ์•„๋ž˜์™€ ๊ฐ™์ด ์—ฐ์‚ฐ์ž๋ฅผ ์ €์žฅํ•œ๋‹ค.

์—ฐ์‚ฐ์ž๊ฐ€ +์ผ ๊ฒฝ์šฐ 0
์—ฐ์‚ฐ์ž๊ฐ€ -์ผ ๊ฒฝ์šฐ 1
์—ฐ์‚ฐ์ž๊ฐ€ *์ผ ๊ฒฝ์šฐ 2
์—ฐ์‚ฐ์ž๊ฐ€ /์ผ ๊ฒฝ์šฐ 3

์ €์žฅ์„ ํ•œ ํ›„ next_permutationํ•จ์ˆ˜๋ฅผ ์ด์šฉํ•ด ์ˆœ์—ด์„ ๊ตฌํ•˜๊ณ  ์šฐ์„  ์ˆœ์œ„๊ฐ€ ์—†๊ธฐ ๋•Œ๋ฌธ์— ์ˆ˜์—ด ์ฐจ๋ก€๋Œ€๋กœ ์—ฐ์‚ฐ์„ ํ•œ๋‹ค. ๊ทธ๋ฆฌ๊ณ  max, min ๊ฐ’์„ ๊ตฌํ•œ๋‹ค.

๐Ÿ’ป ์ฝ”๋“œ

//
//  14888.cpp
//  test
//
//  Created by ์ฃผ์„ฑํ˜ธ on 2022/01/26.
//  Copyright © 2022 ์ฃผ์„ฑํ˜ธ. All rights reserved.
//

#include <bits/stdc++.h>

using namespace std;

vector<int> num, numberOfOperator(4);
vector<int> op;

void insertOperator(int n, int c) {
  for (int i = 0; i < n; i++) {
    op.push_back(c);
  }
}

void inputData() {
  int N;
  cin >> N;

  num.reserve(N);

  while (N--) {
    int n;
    cin >> n;
    num.push_back(n);
  }

  for (int i = 0; i < 4; i++) {
    cin >> numberOfOperator[i];
    insertOperator(numberOfOperator[i], i);
  }
}

int main() {
  inputData();
  int max_value = -INT_MAX, min_value = INT_MAX;
  do {
    int temp = num[0];
    for (int i = 1; i < num.size(); i++) {
      if (op[i - 1] == 0) {
        temp += num[i];
      } else if (op[i - 1] == 1) {
        temp -= num[i];
      } else if (op[i - 1] == 2) {
        temp *= num[i];
      } else {
        temp /= num[i];
      }
    }
    max_value = max(max_value, temp);
    min_value = min(min_value, temp);
  } while (next_permutation(op.begin(), op.end()));

  cout << max_value << "\n" << min_value << '\n';

  return 0;
}
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