제출 #957159

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
957159		duckindog	Aliens (IOI16_aliens)	C++17	컴파일 에러	0 ms	0 KiB

aliens

#include <bits/stdc++.h>

using namespace std;

#ifndef LOCAL
#include "aliens.h"
#endif

int64_t take_photos(int n, int m, int k, vector<int> r, vector<int> c) { 
  using pii = pair<int, int>;
  vector<pii> p(n);
  vector<vector<int64_t>> f(k + 1, vector<int64_t>(n + 1, 1e15));

  for (int i = 0; i < n; ++i) p[i] = {r[i], c[i]};

  if (n <= 50 && m <= 100 && k == n) { 
    vector<vector<bool>> mk(m, vector<bool>(m));
    for (int i = 0; i < n; ++i) { 
      auto [x, y] = p[i];
      if (x > y) swap(x, y);
      for (int i = x; i <= y; ++i) { 
        for (int j = x; j <= y; ++j) mk[i][j] = true;
      }
    }
    
    int answer = 0;
    for (int i = 0; i < m; ++i) 
      for (int j = 0; j < m; ++j) answer += mk[i][j];
    return answer;
  }

  auto dis = [&](pii a) { return abs(a.first - a.second) + 1; };

  sort(p.begin(), p.end(), [&](const auto& a, const auto& b) { 
    return make_pair(a.first, dis(a)) < make_pair(b.first, dis(b));
  });

  return 0;
}

#ifdef LOCAL
int32_t main() { 
  cin.tie(0)->sync_with_stdio(0);

  int n, m, k; cin >> n >> m >> k;
  vector<int> r(n), c(n);
  for (int i = 0; i < n; ++i) cin >> r[i] >> c[i];

  cout << take_photos(n, m, k, r, c) << "\n";
}
#endif

컴파일 시 표준 에러 (stderr) 메시지

aliens.cpp:9:9: error: ambiguating new declaration of 'int64_t take_photos(int, int, int, std::vector<int>, std::vector<int>)'
    9 | int64_t take_photos(int n, int m, int k, vector<int> r, vector<int> c) {
      |         ^~~~~~~~~~~
In file included from aliens.cpp:6:
aliens.h:5:11: note: old declaration 'long long int take_photos(int, int, int, std::vector<int>, std::vector<int>)'
    5 | long long take_photos(int n, int m, int k, std::vector<int> r, std::vector<int> c);
      |           ^~~~~~~~~~~