제출 #771272

#제출 시각아이디문제언어결과실행 시간메모리
771272MilosMilutinovic함박 스테이크 (JOI20_hamburg)C++14
2 / 100
134 ms18408 KiB
#include <bits/stdc++.h> using namespace std; const int N = 2e5 + 10; int n, k, l[N], d[N], r[N], u[N]; vector<int> sweep_line(int* a, int* b) { vector<pair<int, int>> ev; for (int i = 1; i <= n; i++) { ev.emplace_back(a[i], 0); ev.emplace_back(b[i], 1); } sort(ev.begin(), ev.end()); int bal = 0; vector<int> res; for (auto& p : ev) { if (p.second == 0) { bal += 1; if (bal == n) { res.push_back(p.first); } } else { bal -= 1; // if (bal == 0) { // res.push_back(p.first); // } } } return res; } int main() { scanf("%d%d", &n, &k); for (int i = 1; i <= n; i++) { scanf("%d%d%d%d", &l[i], &d[i], &r[i], &u[i]); } vector<int> xs = sweep_line(l, r); vector<int> ys = sweep_line(d, u); printf("%d %d\n", xs[0], ys[0]); }

컴파일 시 표준 에러 (stderr) 메시지

hamburg.cpp: In function 'int main()':
hamburg.cpp:30:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |     scanf("%d%d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~
hamburg.cpp:32:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |         scanf("%d%d%d%d", &l[i], &d[i], &r[i], &u[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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