oj.uz

Submission #797237

# Submission time Handle Problem Language Result Execution time Memory
797237 2023-07-29T08:18:51 Z radaiosm7 New Home (APIO18_new_home) C++
5 / 100
 5000 ms 163520 KB 
#include <bits/stdc++.h>
using namespace std;
#define X first
#define Y second
int n, q, k, i, x, t, a, b, ans;
bool ok;
const int MXM=100000000;
pair<pair<int, int>, pair<int, int> > shops[300005];

struct Node {
  int val;
  Node *l, *r;

  Node(int x) : val(x), l(nullptr), r(nullptr) {}

  Node(Node *ll, Node *rr) {
    val = 0;
    l = ll;
    r = rr;
    if (l) val += l->val;
    if (r) val += r->val;
  }

  Node(Node *cp) : val(cp->val), l(cp->l), r(cp->r) {};
};

vector<Node*> heads[300005];
vector<int> times[300005];

Node *Update(Node *node, int pos, int val, int l=1, int r=MXM) {
  if (l == r) return new Node(node->val+val);
  int mid = (l+r)/2;
  
  if (pos <= mid) {
    if (node->l == nullptr) node->l = new Node(0);
    return new Node(Update(node->l, pos, val, l, mid), node->r);
  }

  else {
    if (node->r == nullptr) node->r = new Node(0);
    return new Node(node->l, Update(node->r, pos, val, mid+1, r));
  }
}

int Query(Node *node, int from, int to, int l=1, int r=MXM) {
  if (node == nullptr) return 0;
  if (from == l && to == r) return node->val;
  int mid = (l+r)/2;

  if (to <= mid) return Query(node->l, from, to, l, mid);
  else if (from > mid) return Query(node->r, from, to, mid+1, r);
  else return Query(node->l, from, mid, l, mid) + Query(node->r, mid+1, to, mid+1, r);
}

int Walk(Node *node, int kval, int l=1, int r=MXM) {
  if (l == r) return l;
  int mid = (l+r)/2;
  if (node->l == nullptr) return Walk(node->r, kval, mid+1, r);
  else if ((node->l)->val < kval) return Walk(node->r, kval-(node->l)->val, mid+1, r);
  else return Walk(node->l, kval, l, mid);
}


int main() {
  scanf("%d%d%d", &n, &k, &q);

  for (i=0; i < n; ++i) {
    scanf("%d%d%d%d", &x, &t, &a, &b);
    shops[2*i] = make_pair(make_pair(a, 1), make_pair(x, t));
    shops[2*i+1] = make_pair(make_pair(b+1, -1), make_pair(x, t));
  }

  sort(shops, shops+2*n);
  
  for (i=1; i <= k; ++i) {
    heads[i].push_back(new Node(0));
    times[i].push_back(0);
  }

  for (i=0; i < 2*n; ++i) {
    t = shops[i].Y.Y;
    x = shops[i].Y.X;
    a = shops[i].X.X;
    b = shops[i].X.Y;
    heads[t].push_back(Update(heads[t].back(), x, b));
    times[t].push_back(a);
  }
  
  while(q--) {
    scanf("%d%d", &a, &b);
    ok = true;
    ans = 0;

    for (i=1; i <= k; ++i) {
      t = prev(upper_bound(times[i].begin(), times[i].end(), b))-times[i].begin();

      if (Query(heads[i][t], 1, MXM) == 0) {
        ok = false;
        break;
      }
      
      if (Query(heads[i][t], a, a) == 0) {
        int d1 = 100000005;
        int d2 = 100000005;
        int q1 = Query(heads[i][t], 1, a-1);
        if (q1 > 0) d1 = a-Walk(heads[i][t], q1);
        int q2 = Query(heads[i][t], a+1, MXM);
        if (q2 > 0) d2 = Walk(heads[i][t], q1+1)-a;
        d1 = min(d1, d2);
        ans = max(ans, d1);
      }
    }

    if (!ok) printf("-1\n");
    else printf("%d\n", ans);
  }

  return 0;
}

Compilation message

new_home.cpp: In function 'int main()':
new_home.cpp:65:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |   scanf("%d%d%d", &n, &k, &q);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:68:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   68 |     scanf("%d%d%d%d", &x, &t, &a, &b);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:90:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   90 |     scanf("%d%d", &a, &b);
      |     ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14440 KB Output is correct
3 Correct 7 ms 14300 KB Output is correct
4 Correct 6 ms 14364 KB Output is correct
5 Correct 8 ms 15060 KB Output is correct
6 Correct 9 ms 15316 KB Output is correct
7 Correct 8 ms 15484 KB Output is correct
8 Correct 9 ms 15444 KB Output is correct
9 Correct 9 ms 15444 KB Output is correct
10 Correct 10 ms 15316 KB Output is correct
11 Correct 8 ms 15440 KB Output is correct
12 Correct 10 ms 15316 KB Output is correct
13 Correct 8 ms 15312 KB Output is correct
14 Correct 8 ms 15316 KB Output is correct
15 Correct 17 ms 15440 KB Output is correct
16 Correct 20 ms 15444 KB Output is correct
17 Correct 12 ms 15436 KB Output is correct
18 Correct 14 ms 15360 KB Output is correct
19 Correct 18 ms 15440 KB Output is correct
20 Correct 14 ms 15440 KB Output is correct
21 Correct 20 ms 15444 KB Output is correct
22 Correct 21 ms 15444 KB Output is correct
23 Correct 17 ms 15480 KB Output is correct
24 Correct 16 ms 15472 KB Output is correct
25 Correct 12 ms 15456 KB Output is correct
26 Correct 9 ms 15316 KB Output is correct
27 Correct 10 ms 15176 KB Output is correct
28 Correct 10 ms 15316 KB Output is correct
29 Correct 9 ms 15316 KB Output is correct
30 Correct 8 ms 15188 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14440 KB Output is correct
3 Correct 7 ms 14300 KB Output is correct
4 Correct 6 ms 14364 KB Output is correct
5 Correct 8 ms 15060 KB Output is correct
6 Correct 9 ms 15316 KB Output is correct
7 Correct 8 ms 15484 KB Output is correct
8 Correct 9 ms 15444 KB Output is correct
9 Correct 9 ms 15444 KB Output is correct
10 Correct 10 ms 15316 KB Output is correct
11 Correct 8 ms 15440 KB Output is correct
12 Correct 10 ms 15316 KB Output is correct
13 Correct 8 ms 15312 KB Output is correct
14 Correct 8 ms 15316 KB Output is correct
15 Correct 17 ms 15440 KB Output is correct
16 Correct 20 ms 15444 KB Output is correct
17 Correct 12 ms 15436 KB Output is correct
18 Correct 14 ms 15360 KB Output is correct
19 Correct 18 ms 15440 KB Output is correct
20 Correct 14 ms 15440 KB Output is correct
21 Correct 20 ms 15444 KB Output is correct
22 Correct 21 ms 15444 KB Output is correct
23 Correct 17 ms 15480 KB Output is correct
24 Correct 16 ms 15472 KB Output is correct
25 Correct 12 ms 15456 KB Output is correct
26 Correct 9 ms 15316 KB Output is correct
27 Correct 10 ms 15176 KB Output is correct
28 Correct 10 ms 15316 KB Output is correct
29 Correct 9 ms 15316 KB Output is correct
30 Correct 8 ms 15188 KB Output is correct
31 Execution timed out 5071 ms 163520 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5071 ms 18944 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5037 ms 18968 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14440 KB Output is correct
3 Correct 7 ms 14300 KB Output is correct
4 Correct 6 ms 14364 KB Output is correct
5 Correct 8 ms 15060 KB Output is correct
6 Correct 9 ms 15316 KB Output is correct
7 Correct 8 ms 15484 KB Output is correct
8 Correct 9 ms 15444 KB Output is correct
9 Correct 9 ms 15444 KB Output is correct
10 Correct 10 ms 15316 KB Output is correct
11 Correct 8 ms 15440 KB Output is correct
12 Correct 10 ms 15316 KB Output is correct
13 Correct 8 ms 15312 KB Output is correct
14 Correct 8 ms 15316 KB Output is correct
15 Correct 17 ms 15440 KB Output is correct
16 Correct 20 ms 15444 KB Output is correct
17 Correct 12 ms 15436 KB Output is correct
18 Correct 14 ms 15360 KB Output is correct
19 Correct 18 ms 15440 KB Output is correct
20 Correct 14 ms 15440 KB Output is correct
21 Correct 20 ms 15444 KB Output is correct
22 Correct 21 ms 15444 KB Output is correct
23 Correct 17 ms 15480 KB Output is correct
24 Correct 16 ms 15472 KB Output is correct
25 Correct 12 ms 15456 KB Output is correct
26 Correct 9 ms 15316 KB Output is correct
27 Correct 10 ms 15176 KB Output is correct
28 Correct 10 ms 15316 KB Output is correct
29 Correct 9 ms 15316 KB Output is correct
30 Correct 8 ms 15188 KB Output is correct
31 Execution timed out 5071 ms 163520 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14440 KB Output is correct
3 Correct 7 ms 14300 KB Output is correct
4 Correct 6 ms 14364 KB Output is correct
5 Correct 8 ms 15060 KB Output is correct
6 Correct 9 ms 15316 KB Output is correct
7 Correct 8 ms 15484 KB Output is correct
8 Correct 9 ms 15444 KB Output is correct
9 Correct 9 ms 15444 KB Output is correct
10 Correct 10 ms 15316 KB Output is correct
11 Correct 8 ms 15440 KB Output is correct
12 Correct 10 ms 15316 KB Output is correct
13 Correct 8 ms 15312 KB Output is correct
14 Correct 8 ms 15316 KB Output is correct
15 Correct 17 ms 15440 KB Output is correct
16 Correct 20 ms 15444 KB Output is correct
17 Correct 12 ms 15436 KB Output is correct
18 Correct 14 ms 15360 KB Output is correct
19 Correct 18 ms 15440 KB Output is correct
20 Correct 14 ms 15440 KB Output is correct
21 Correct 20 ms 15444 KB Output is correct
22 Correct 21 ms 15444 KB Output is correct
23 Correct 17 ms 15480 KB Output is correct
24 Correct 16 ms 15472 KB Output is correct
25 Correct 12 ms 15456 KB Output is correct
26 Correct 9 ms 15316 KB Output is correct
27 Correct 10 ms 15176 KB Output is correct
28 Correct 10 ms 15316 KB Output is correct
29 Correct 9 ms 15316 KB Output is correct
30 Correct 8 ms 15188 KB Output is correct
31 Execution timed out 5071 ms 163520 KB Time limit exceeded
32 Halted 0 ms 0 KB -