oj.uz

답안 #872327

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
872327 2023-11-12T21:38:10 Z MilosMilutinovic Bitaro, who Leaps through Time (JOI19_timeleap) C++14
100 / 100
 427 ms 78672 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 300000;
const int inf = (int) 1e9;

struct node {
  int L, R, to;
  long long cost;
  node(int L = 0, int R = inf, int to = 0, long long cost = 0) : L(L), R(R), to(to), cost(cost) {}
} st[2][4 * N];

node merge(node l, node r) {
  if (l.to != inf) {
    return node(l.L, l.R, r.to != inf ? r.to : min(max(l.to, r.L), r.R), l.cost + r.cost + max(0, l.to - r.R));
  }
  if (l.R < r.L) {
    return node(l.R, l.R, r.to != inf ? r.to : r.L, l.cost + r.cost);
  }
  if (l.L > r.R) {
    return node(l.L, l.L, r.to != inf ? r.to : r.R, l.cost + r.cost + l.L - r.R);
  }
  return node(max(l.L, r.L), min(l.R, r.R), r.to != inf ? r.to : inf, l.cost + r.cost);
}

int n, q, from[2][N], to[2][N];

void Build(int t, int id, int l, int r) {
  if (l == r) {
    st[t][id] = node(from[t][l], to[t][l], inf, 0);
    return;
  }
  int mid = (l + r) / 2;
  Build(t, id << 1, l, mid);
  Build(t, id << 1 | 1, mid + 1, r);
  st[t][id] = merge(st[t][id << 1], st[t][id << 1 | 1]);
}

void Update(int t, int id, int l, int r, int p) {
  if (l == r) {
    st[t][id] = node(from[t][l], to[t][l], inf, 0);
    return;
  }
  int mid = (l + r) / 2;
  if (p <= mid) {
    Update(t, id << 1, l, mid, p);
  } else {
    Update(t, id << 1 | 1, mid + 1, r, p);
  }
  st[t][id] = merge(st[t][id << 1], st[t][id << 1 | 1]);
}

node Query(int t, int id, int l, int r, int ql, int qr) {
  if (ql <= l && r <= qr) {
    return st[t][id];
  }
  int mid = (l + r) / 2;
  if (qr <= mid) {
    return Query(t, id << 1, l, mid, ql, qr);
  } else if (ql > mid) {
    return Query(t, id << 1 | 1, mid + 1, r, ql, qr);
  } else {
    return merge(Query(t, id << 1, l, mid, ql, qr), Query(t, id << 1 | 1, mid + 1, r, ql, qr));
  }
}

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cin >> n >> q;
  for (int i = 1; i < n; i++) {
    cin >> from[0][i] >> to[0][i];
    --to[0][i];
    from[1][n - i] = from[0][i];
    to[1][n - i] = to[0][i];
  }
  for (int i = 1; i < n; i++) {
    from[0][i] -= i;
    to[0][i] -= i;
    from[1][i] -= i;
    to[1][i] -= i;
  }
  if (n != 1) {
    Build(0, 1, 1, n - 1);
    Build(1, 1, 1, n - 1);
  }
  while (q--) {
    int op;
    cin >> op;
    if (op == 1) {
      int p, s, e;
      cin >> p >> s >> e;
      --e;
      from[0][p] = s - p;
      to[0][p] = e - p;
      from[1][n - p] = s - (n - p);
      to[1][n - p] = e - (n - p);
      if (n != 1) {
        Update(0, 1, 1, n - 1, p);
        Update(1, 1, 1, n - 1, n - p);
      }
    } else {
      int a, b, c, d;
      cin >> a >> b >> c >> d;
      if (a == c) {
        cout << max(b - d, 0) << '\n';
        continue;
      }
      int t = (a < c ? 0 : 1);
      if (a > c) {
        a = n - a + 1;
        c = n - c + 1;
      }
      b -= a;
      d -= c;
      node L = node(b, b, b, 0);
      node R = node(d, d, d, 0);
      node seg = Query(t, 1, 1, n - 1, a, c - 1);
      cout << merge(merge(L, seg), R).cost << '\n'; 
    }
  }
  return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 61272 KB Output is correct
2 Correct 9 ms 61276 KB Output is correct
3 Correct 10 ms 61180 KB Output is correct
4 Correct 10 ms 61276 KB Output is correct
5 Correct 10 ms 61276 KB Output is correct
6 Correct 10 ms 61272 KB Output is correct
7 Correct 10 ms 61276 KB Output is correct
8 Correct 9 ms 61276 KB Output is correct
9 Correct 10 ms 61276 KB Output is correct
10 Correct 10 ms 61276 KB Output is correct
11 Correct 10 ms 61272 KB Output is correct
12 Correct 10 ms 61168 KB Output is correct
13 Correct 11 ms 61168 KB Output is correct
14 Correct 10 ms 61276 KB Output is correct
15 Correct 10 ms 61276 KB Output is correct
16 Correct 10 ms 61276 KB Output is correct
17 Correct 10 ms 61276 KB Output is correct
18 Correct 10 ms 61352 KB Output is correct
19 Correct 10 ms 61272 KB Output is correct
20 Correct 11 ms 61276 KB Output is correct
21 Correct 10 ms 61276 KB Output is correct
22 Correct 12 ms 61348 KB Output is correct
23 Correct 10 ms 61276 KB Output is correct
24 Correct 10 ms 61276 KB Output is correct
25 Correct 11 ms 61276 KB Output is correct
26 Correct 10 ms 61352 KB Output is correct
27 Correct 10 ms 61220 KB Output is correct
28 Correct 10 ms 61276 KB Output is correct
29 Correct 10 ms 61392 KB Output is correct
30 Correct 10 ms 61368 KB Output is correct
31 Correct 10 ms 61276 KB Output is correct
32 Correct 10 ms 61276 KB Output is correct
33 Correct 10 ms 61272 KB Output is correct
34 Correct 11 ms 61388 KB Output is correct
35 Correct 10 ms 61348 KB Output is correct
36 Correct 11 ms 61276 KB Output is correct
37 Correct 10 ms 61276 KB Output is correct
38 Correct 11 ms 61276 KB Output is correct
39 Correct 10 ms 61276 KB Output is correct
40 Correct 10 ms 61276 KB Output is correct
41 Correct 9 ms 57176 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 361 ms 73648 KB Output is correct
2 Correct 341 ms 73556 KB Output is correct
3 Correct 351 ms 73512 KB Output is correct
4 Correct 350 ms 73816 KB Output is correct
5 Correct 361 ms 73552 KB Output is correct
6 Correct 349 ms 73604 KB Output is correct
7 Correct 351 ms 73524 KB Output is correct
8 Correct 373 ms 74024 KB Output is correct
9 Correct 341 ms 73704 KB Output is correct
10 Correct 353 ms 73500 KB Output is correct
11 Correct 351 ms 73620 KB Output is correct
12 Correct 353 ms 73812 KB Output is correct
13 Correct 368 ms 74000 KB Output is correct
14 Correct 9 ms 57432 KB Output is correct

Subtask #3
66.0 / 66.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 61272 KB Output is correct
2 Correct 9 ms 61276 KB Output is correct
3 Correct 10 ms 61180 KB Output is correct
4 Correct 10 ms 61276 KB Output is correct
5 Correct 10 ms 61276 KB Output is correct
6 Correct 10 ms 61272 KB Output is correct
7 Correct 10 ms 61276 KB Output is correct
8 Correct 9 ms 61276 KB Output is correct
9 Correct 10 ms 61276 KB Output is correct
10 Correct 10 ms 61276 KB Output is correct
11 Correct 10 ms 61272 KB Output is correct
12 Correct 10 ms 61168 KB Output is correct
13 Correct 11 ms 61168 KB Output is correct
14 Correct 10 ms 61276 KB Output is correct
15 Correct 10 ms 61276 KB Output is correct
16 Correct 10 ms 61276 KB Output is correct
17 Correct 10 ms 61276 KB Output is correct
18 Correct 10 ms 61352 KB Output is correct
19 Correct 10 ms 61272 KB Output is correct
20 Correct 11 ms 61276 KB Output is correct
21 Correct 10 ms 61276 KB Output is correct
22 Correct 12 ms 61348 KB Output is correct
23 Correct 10 ms 61276 KB Output is correct
24 Correct 10 ms 61276 KB Output is correct
25 Correct 11 ms 61276 KB Output is correct
26 Correct 10 ms 61352 KB Output is correct
27 Correct 10 ms 61220 KB Output is correct
28 Correct 10 ms 61276 KB Output is correct
29 Correct 10 ms 61392 KB Output is correct
30 Correct 10 ms 61368 KB Output is correct
31 Correct 10 ms 61276 KB Output is correct
32 Correct 10 ms 61276 KB Output is correct
33 Correct 10 ms 61272 KB Output is correct
34 Correct 11 ms 61388 KB Output is correct
35 Correct 10 ms 61348 KB Output is correct
36 Correct 11 ms 61276 KB Output is correct
37 Correct 10 ms 61276 KB Output is correct
38 Correct 11 ms 61276 KB Output is correct
39 Correct 10 ms 61276 KB Output is correct
40 Correct 10 ms 61276 KB Output is correct
41 Correct 9 ms 57176 KB Output is correct
42 Correct 361 ms 73648 KB Output is correct
43 Correct 341 ms 73556 KB Output is correct
44 Correct 351 ms 73512 KB Output is correct
45 Correct 350 ms 73816 KB Output is correct
46 Correct 361 ms 73552 KB Output is correct
47 Correct 349 ms 73604 KB Output is correct
48 Correct 351 ms 73524 KB Output is correct
49 Correct 373 ms 74024 KB Output is correct
50 Correct 341 ms 73704 KB Output is correct
51 Correct 353 ms 73500 KB Output is correct
52 Correct 351 ms 73620 KB Output is correct
53 Correct 353 ms 73812 KB Output is correct
54 Correct 368 ms 74000 KB Output is correct
55 Correct 9 ms 57432 KB Output is correct
56 Correct 399 ms 78116 KB Output is correct
57 Correct 385 ms 77904 KB Output is correct
58 Correct 402 ms 78340 KB Output is correct
59 Correct 401 ms 78168 KB Output is correct
60 Correct 380 ms 77648 KB Output is correct
61 Correct 423 ms 78476 KB Output is correct
62 Correct 401 ms 78416 KB Output is correct
63 Correct 426 ms 78564 KB Output is correct
64 Correct 403 ms 78416 KB Output is correct
65 Correct 398 ms 78116 KB Output is correct
66 Correct 406 ms 78316 KB Output is correct
67 Correct 409 ms 78300 KB Output is correct
68 Correct 394 ms 77740 KB Output is correct
69 Correct 427 ms 78424 KB Output is correct
70 Correct 398 ms 77660 KB Output is correct
71 Correct 387 ms 77476 KB Output is correct
72 Correct 382 ms 77260 KB Output is correct
73 Correct 423 ms 77848 KB Output is correct
74 Correct 402 ms 77908 KB Output is correct
75 Correct 402 ms 77956 KB Output is correct
76 Correct 409 ms 78672 KB Output is correct
77 Correct 9 ms 57180 KB Output is correct