Submission #905457

#	Time	Username	Problem	Language	Result	Execution time	Memory
905457		nguyentunglam	New Home (APIO18_new_home)	C++17	5 / 100	5047 ms	41872 KiB

new_home

#include<bits/stdc++.h>
#define all(v) v.begin(), v.end()
#define endl "\n"
using namespace std;

const int N = 3e5 + 10;

int n, k, q;

int x[N], t[N], a[N], b[N], cost[N];

set<int> s[N];

int32_t main() {
  #define task ""

  cin.tie(0) -> sync_with_stdio(0);

  if (fopen("task.inp", "r")) {
    freopen("task.inp", "r", stdin);
    freopen("task.out", "w", stdout);
  }

  if (fopen(task".inp", "r")) {
    freopen (task".inp", "r", stdin);
    freopen (task".out", "w", stdout);
  }

  cin >> n >> k >> q;


  for(int i = 1; i <= n; i++) cin >> x[i] >> t[i] >> a[i] >> b[i];

  for(int i = 1; i <= n; i++) s[t[i]].insert(i);

  while (q--) {
    int l, y; cin >> l >> y;
    for(int i = 1; i <= k; i++) cost[i] = 1e9;
    for(int i = 1; i <= n; i++) if (a[i] <= y && y <= b[i]) {
      cost[t[i]] = min(cost[t[i]], abs(l - x[i]));
    }
    int ans = 0;
    for(int i = 1; i <= k; i++) ans = max(ans, cost[i]);
    if (ans == 1e9) ans = -1;
    cout << ans << endl;
  }
}

Compilation message (stderr)

new_home.cpp: In function 'int32_t main()':
new_home.cpp:20:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |     freopen("task.inp", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:21:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |     freopen("task.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:25:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |     freopen (task".inp", "r", stdin);
      |     ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:26:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |     freopen (task".out", "w", stdout);
      |     ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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