제출 #985838

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
985838	2024-05-19 04:44:12	duckindog	Building Skyscrapers (CEOI19_skyscrapers)	C++17	0 / 100	48 ms	11472 KiB

skyscrapers

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#include <bits/stdc++.h>
using namespace std;
const int N = 150'000 + 10,
          dx[8] = {-1, 0, 1, -1, 1, 1, 0, -1},
          dy[8] = {-1, -1, -1, 0, 0, 1, 1, 1};
int n, type;
struct Point { 
  int r, c, idx;
  bool operator > (const auto& rhs) { 
    return make_pair(r, c) > make_pair(rhs.r, rhs.c); 
  }
  friend ostream& operator << (ostream& os, const auto& rhs) { 
    return os << rhs.r << " " << rhs.c << " " << rhs.idx;
  }
} p[N];
unordered_map<int, unordered_map<int, int>> rvs;
bool mk[N];
vector<int> answer;
void dfs(int idx) { 
  int r = p[idx].r, c = p[idx].c;
  answer.push_back(idx);
  for (int i = 0; i < 8; ++i) { 
    int nR = r + dx[i], nC = c + dy[i],
        nxt = rvs[nR][nC];
    if (!nxt || mk[nxt]) continue;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

skyscrapers.cpp:12:25: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   12 |  bool operator > (const auto& rhs) {
      |                         ^~~~
skyscrapers.cpp:15:50: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   15 |  friend ostream& operator << (ostream& os, const auto& rhs) {
      |                                                  ^~~~
skyscrapers.cpp: In function 'int32_t main()':
skyscrapers.cpp:52:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   52 |  if (answer.size() != n) { cout << "No\n"; return 0; };
      |      ~~~~~~~~~~~~~~^~~~

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