Submission #658765

#	Time	Username	Problem	Language	Result	Execution time	Memory
658765		600Mihnea	New Home (APIO18_new_home)	C++17	5 / 100	5025 ms	23292 KiB

new_home

bool home = 0;

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
const int N = (int) 3e5 + 7;
const int INF = (int) 1e9 + 7;
int n;
int k;
int q;

struct T {
  int x;
  int t;
  int a;
  int b;
};

T v[N];
vector<int> gs[N];

int main() {
  if (home == 0) {
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  } else {
    freopen ("input.txt", "r", stdin);
  }

  cin >> n >> k >> q;

  for (int i = 1; i <= n; i++) {
    cin >> v[i].x >> v[i].t >> v[i].a >> v[i].b;
    gs[v[i].t].push_back(i);
  }

  for (int iq = 1; iq <= q; iq++) {
    int x, t;
    cin >> x >> t;
    int sol = -INF;
    for (int tp = 1; tp <= k; tp++) {
      int nr = INF;
      for (auto &i : gs[tp]) {
        if (v[i].a <= t && t <= v[i].b) {
          nr = min(nr, abs(x - v[i].x));
        }
      }
      sol = max(sol, nr);
    }
    if (sol == INF) {
      sol = -1;
    }
    cout << sol << "\n";
  }

  return 0;
}

Compilation message (stderr)

new_home.cpp: In function 'int main()':
new_home.cpp:28:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |     freopen ("input.txt", "r", stdin);
      |     ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 10
• Subtask 4: 0 / 23
• Subtask 5: 0 / 35
• Subtask 6: 0 / 20