oj.uz

답안 #797349

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
797349 2023-07-29T09:50:43 Z radaiosm7 새 집 (APIO18_new_home) C++
5 / 100
 5000 ms 162020 KB 
#include <bits/stdc++.h>
using namespace std;
#define X first
#define Y second
int n, q, k, i, x, t, a, b, ans, MXM;
bool ok;
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);
  MXM = 0;

  for (i=0; i < n; ++i) {
    scanf("%d%d%d%d", &x, &t, &a, &b);
    MXM = max(MXM, x+5);
    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 = 0;
        if (a > 1) 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:64:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |   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:91:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   91 |     scanf("%d%d", &a, &b);
      |     ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14292 KB Output is correct
2 Correct 6 ms 14404 KB Output is correct
3 Correct 6 ms 14292 KB Output is correct
4 Correct 6 ms 14404 KB Output is correct
5 Correct 7 ms 14532 KB Output is correct
6 Correct 9 ms 15372 KB Output is correct
7 Correct 8 ms 15444 KB Output is correct
8 Correct 9 ms 15408 KB Output is correct
9 Correct 9 ms 15500 KB Output is correct
10 Correct 10 ms 15304 KB Output is correct
11 Correct 8 ms 15316 KB Output is correct
12 Correct 8 ms 15316 KB Output is correct
13 Correct 8 ms 15316 KB Output is correct
14 Correct 11 ms 15316 KB Output is correct
15 Correct 17 ms 15504 KB Output is correct
16 Correct 20 ms 15444 KB Output is correct
17 Correct 12 ms 15444 KB Output is correct
18 Correct 14 ms 15444 KB Output is correct
19 Correct 17 ms 15364 KB Output is correct
20 Correct 11 ms 15452 KB Output is correct
21 Correct 17 ms 15436 KB Output is correct
22 Correct 18 ms 15508 KB Output is correct
23 Correct 16 ms 15492 KB Output is correct
24 Correct 16 ms 15480 KB Output is correct
25 Correct 12 ms 15452 KB Output is correct
26 Correct 9 ms 15316 KB Output is correct
27 Correct 9 ms 14548 KB Output is correct
28 Correct 9 ms 15316 KB Output is correct
29 Correct 8 ms 15316 KB Output is correct
30 Correct 8 ms 15072 KB Output is correct

Subtask #2
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14292 KB Output is correct
2 Correct 6 ms 14404 KB Output is correct
3 Correct 6 ms 14292 KB Output is correct
4 Correct 6 ms 14404 KB Output is correct
5 Correct 7 ms 14532 KB Output is correct
6 Correct 9 ms 15372 KB Output is correct
7 Correct 8 ms 15444 KB Output is correct
8 Correct 9 ms 15408 KB Output is correct
9 Correct 9 ms 15500 KB Output is correct
10 Correct 10 ms 15304 KB Output is correct
11 Correct 8 ms 15316 KB Output is correct
12 Correct 8 ms 15316 KB Output is correct
13 Correct 8 ms 15316 KB Output is correct
14 Correct 11 ms 15316 KB Output is correct
15 Correct 17 ms 15504 KB Output is correct
16 Correct 20 ms 15444 KB Output is correct
17 Correct 12 ms 15444 KB Output is correct
18 Correct 14 ms 15444 KB Output is correct
19 Correct 17 ms 15364 KB Output is correct
20 Correct 11 ms 15452 KB Output is correct
21 Correct 17 ms 15436 KB Output is correct
22 Correct 18 ms 15508 KB Output is correct
23 Correct 16 ms 15492 KB Output is correct
24 Correct 16 ms 15480 KB Output is correct
25 Correct 12 ms 15452 KB Output is correct
26 Correct 9 ms 15316 KB Output is correct
27 Correct 9 ms 14548 KB Output is correct
28 Correct 9 ms 15316 KB Output is correct
29 Correct 8 ms 15316 KB Output is correct
30 Correct 8 ms 15072 KB Output is correct
31 Execution timed out 5065 ms 162020 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 59 ms 38508 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 58 ms 38872 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14292 KB Output is correct
2 Correct 6 ms 14404 KB Output is correct
3 Correct 6 ms 14292 KB Output is correct
4 Correct 6 ms 14404 KB Output is correct
5 Correct 7 ms 14532 KB Output is correct
6 Correct 9 ms 15372 KB Output is correct
7 Correct 8 ms 15444 KB Output is correct
8 Correct 9 ms 15408 KB Output is correct
9 Correct 9 ms 15500 KB Output is correct
10 Correct 10 ms 15304 KB Output is correct
11 Correct 8 ms 15316 KB Output is correct
12 Correct 8 ms 15316 KB Output is correct
13 Correct 8 ms 15316 KB Output is correct
14 Correct 11 ms 15316 KB Output is correct
15 Correct 17 ms 15504 KB Output is correct
16 Correct 20 ms 15444 KB Output is correct
17 Correct 12 ms 15444 KB Output is correct
18 Correct 14 ms 15444 KB Output is correct
19 Correct 17 ms 15364 KB Output is correct
20 Correct 11 ms 15452 KB Output is correct
21 Correct 17 ms 15436 KB Output is correct
22 Correct 18 ms 15508 KB Output is correct
23 Correct 16 ms 15492 KB Output is correct
24 Correct 16 ms 15480 KB Output is correct
25 Correct 12 ms 15452 KB Output is correct
26 Correct 9 ms 15316 KB Output is correct
27 Correct 9 ms 14548 KB Output is correct
28 Correct 9 ms 15316 KB Output is correct
29 Correct 8 ms 15316 KB Output is correct
30 Correct 8 ms 15072 KB Output is correct
31 Execution timed out 5065 ms 162020 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14292 KB Output is correct
2 Correct 6 ms 14404 KB Output is correct
3 Correct 6 ms 14292 KB Output is correct
4 Correct 6 ms 14404 KB Output is correct
5 Correct 7 ms 14532 KB Output is correct
6 Correct 9 ms 15372 KB Output is correct
7 Correct 8 ms 15444 KB Output is correct
8 Correct 9 ms 15408 KB Output is correct
9 Correct 9 ms 15500 KB Output is correct
10 Correct 10 ms 15304 KB Output is correct
11 Correct 8 ms 15316 KB Output is correct
12 Correct 8 ms 15316 KB Output is correct
13 Correct 8 ms 15316 KB Output is correct
14 Correct 11 ms 15316 KB Output is correct
15 Correct 17 ms 15504 KB Output is correct
16 Correct 20 ms 15444 KB Output is correct
17 Correct 12 ms 15444 KB Output is correct
18 Correct 14 ms 15444 KB Output is correct
19 Correct 17 ms 15364 KB Output is correct
20 Correct 11 ms 15452 KB Output is correct
21 Correct 17 ms 15436 KB Output is correct
22 Correct 18 ms 15508 KB Output is correct
23 Correct 16 ms 15492 KB Output is correct
24 Correct 16 ms 15480 KB Output is correct
25 Correct 12 ms 15452 KB Output is correct
26 Correct 9 ms 15316 KB Output is correct
27 Correct 9 ms 14548 KB Output is correct
28 Correct 9 ms 15316 KB Output is correct
29 Correct 8 ms 15316 KB Output is correct
30 Correct 8 ms 15072 KB Output is correct
31 Execution timed out 5065 ms 162020 KB Time limit exceeded
32 Halted 0 ms 0 KB -