oj.uz

Submission #384324

# Submission time Handle Problem Language Result Execution time Memory
384324 2021-04-01T10:56:18 Z acm Birthday gift (IZhO18_treearray) C++14
100 / 100
 1243 ms 78084 KB 
#include <bits/stdc++.h>
#define speed                   \
  ios_base::sync_with_stdio(0); \
  cin.tie(0);                   \
  cout.tie(0);
#define precision     \
  cout.precision(30); \
  cerr.precision(10);
#define ll long long
#define ld long double
#define pll pair<ll, ll>
#define pii pair<int, int>
#define forn(n) for (int i = 1; i <= n; i++)
#define forlr(l, r) for (int i = l; i != r; (l > r ? i-- : i++))
#define pb(x) push_back(x)
#define sz(x) (int)x.size()
#define mp(x, y) make_pair(x, y)
#define all(x) x.begin(), x.end()
#define pc(x) __builtin_popcount(x)
#define pcll(x) __builtin_popcountll(x)
#define F first
#define S second
using namespace std;
void ioi(string name) {
  freopen((name + ".in").c_str(), "r", stdin);
  freopen((name + ".out").c_str(), "w", stdout);
}
int n, m, q, T, a[200005], tin[200005], tout[200005], up[200005][20];
set<int> s[200005], acl[200005];
vector<int> g[200005];
void calc(int v = 1, int p = 1) {
  tin[v] = ++T;
  up[v][0] = p;
  for (int i = 1; i <= 19; i++) up[v][i] = up[up[v][i - 1]][i - 1];
  for (auto to : g[v])
    if (to != p) calc(to, v);
  tout[v] = ++T;
}
bool pred(int u, int v) { return (tin[u] <= tin[v] && tout[v] <= tout[u]); }
int lca(int u, int v) {
  if (pred(u, v)) return u;
  if (pred(v, u)) return v;
  for (int i = 19; i >= 0; i--)
    if (!pred(up[u][i], v)) u = up[u][i];
  return (pred(u, v) ? u : up[u][0]);
}
int main() {
  speed;
  precision;
  // code
  cin >> n >> m >> q;
  for (int i = 1; i <= n - 1; i++) {
    int u, v;
    cin >> u >> v;
    g[u].pb(v);
    g[v].pb(u);
  }
  calc();
  for (int i = 1; i <= m; i++) {
    cin >> a[i];
    s[a[i]].insert(i);
    if (i > 1) acl[lca(a[i - 1], a[i])].insert(i - 1);
  }
  while (q--) {
    int type, l, r, v;
    cin >> type;
    if (type == 1) {
      cin >> l >> r;
      s[a[l]].erase(l);
      if (l > 1) acl[lca(a[l - 1], a[l])].erase(l - 1);
      if (l < m) acl[lca(a[l], a[l + 1])].erase(l);
      a[l] = r;
      s[a[l]].insert(l);
      if (l > 1) acl[lca(a[l - 1], a[l])].insert(l - 1);
      if (l < m) acl[lca(a[l], a[l + 1])].insert(l);
    }
    if (type == 2) {
      cin >> l >> r >> v;
      auto it = s[v].lower_bound(l);
      if (it != s[v].end() && *it <= r) {
        cout << *it << " " << *it << "\n";
        continue;
      }
      auto ti = acl[v].lower_bound(l);
      if (ti != acl[v].end() && *ti + 1 <= r) {
        cout << *ti << " " << *ti + 1 << "\n";
        continue;
      }
      cout << -1 << " " << -1 << "\n";
    }
  }
  // endl
#ifndef ONLINE_JUDGE
  cerr << "\nTime elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
#endif
  return 0;
}

Compilation message

treearray.cpp: In function 'void ioi(std::string)':
treearray.cpp:25:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   25 |   freopen((name + ".in").c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
treearray.cpp:26:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   26 |   freopen((name + ".out").c_str(), "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 23916 KB n=5
2 Correct 17 ms 23916 KB n=100
3 Correct 17 ms 23916 KB n=100
4 Correct 17 ms 23916 KB n=100
5 Correct 20 ms 23916 KB n=100
6 Correct 17 ms 23916 KB n=100
7 Correct 17 ms 23916 KB n=100
8 Correct 18 ms 23916 KB n=100
9 Correct 18 ms 23916 KB n=100
10 Correct 17 ms 23916 KB n=100
11 Correct 17 ms 23916 KB n=100
12 Correct 17 ms 23916 KB n=100
13 Correct 17 ms 23916 KB n=100
14 Correct 17 ms 23916 KB n=100
15 Correct 20 ms 23916 KB n=100
16 Correct 17 ms 23916 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 17 ms 23916 KB n=100
19 Correct 17 ms 23916 KB n=100
20 Correct 17 ms 23916 KB n=100
21 Correct 17 ms 23916 KB n=100
22 Correct 17 ms 23884 KB n=100
23 Correct 17 ms 23916 KB n=100
24 Correct 17 ms 23916 KB n=100
25 Correct 17 ms 23916 KB n=100
26 Correct 17 ms 23916 KB n=12
27 Correct 17 ms 23916 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 23916 KB n=5
2 Correct 17 ms 23916 KB n=100
3 Correct 17 ms 23916 KB n=100
4 Correct 17 ms 23916 KB n=100
5 Correct 20 ms 23916 KB n=100
6 Correct 17 ms 23916 KB n=100
7 Correct 17 ms 23916 KB n=100
8 Correct 18 ms 23916 KB n=100
9 Correct 18 ms 23916 KB n=100
10 Correct 17 ms 23916 KB n=100
11 Correct 17 ms 23916 KB n=100
12 Correct 17 ms 23916 KB n=100
13 Correct 17 ms 23916 KB n=100
14 Correct 17 ms 23916 KB n=100
15 Correct 20 ms 23916 KB n=100
16 Correct 17 ms 23916 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 17 ms 23916 KB n=100
19 Correct 17 ms 23916 KB n=100
20 Correct 17 ms 23916 KB n=100
21 Correct 17 ms 23916 KB n=100
22 Correct 17 ms 23884 KB n=100
23 Correct 17 ms 23916 KB n=100
24 Correct 17 ms 23916 KB n=100
25 Correct 17 ms 23916 KB n=100
26 Correct 17 ms 23916 KB n=12
27 Correct 17 ms 23916 KB n=100
28 Correct 18 ms 23916 KB n=500
29 Correct 18 ms 24044 KB n=500
30 Correct 18 ms 24044 KB n=500
31 Correct 18 ms 24044 KB n=500
32 Correct 18 ms 23936 KB n=500
33 Correct 24 ms 24044 KB n=500
34 Correct 18 ms 24044 KB n=500
35 Correct 18 ms 24044 KB n=500
36 Correct 20 ms 23916 KB n=500
37 Correct 18 ms 24064 KB n=500
38 Correct 18 ms 23916 KB n=500
39 Correct 17 ms 24044 KB n=500
40 Correct 18 ms 24044 KB n=500
41 Correct 18 ms 24044 KB n=500
42 Correct 18 ms 23916 KB n=500
43 Correct 18 ms 23916 KB n=500
44 Correct 18 ms 23916 KB n=500
45 Correct 18 ms 23916 KB n=500
46 Correct 17 ms 24044 KB n=500
47 Correct 20 ms 24044 KB n=500
48 Correct 18 ms 23916 KB n=500
49 Correct 18 ms 24044 KB n=500
50 Correct 18 ms 23916 KB n=500
51 Correct 18 ms 24044 KB n=500
52 Correct 18 ms 24044 KB n=500
53 Correct 18 ms 24044 KB n=500
54 Correct 17 ms 24044 KB n=500
55 Correct 18 ms 23916 KB n=278
56 Correct 18 ms 24044 KB n=500
57 Correct 17 ms 24172 KB n=500
58 Correct 18 ms 24044 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 23916 KB n=5
2 Correct 17 ms 23916 KB n=100
3 Correct 17 ms 23916 KB n=100
4 Correct 17 ms 23916 KB n=100
5 Correct 20 ms 23916 KB n=100
6 Correct 17 ms 23916 KB n=100
7 Correct 17 ms 23916 KB n=100
8 Correct 18 ms 23916 KB n=100
9 Correct 18 ms 23916 KB n=100
10 Correct 17 ms 23916 KB n=100
11 Correct 17 ms 23916 KB n=100
12 Correct 17 ms 23916 KB n=100
13 Correct 17 ms 23916 KB n=100
14 Correct 17 ms 23916 KB n=100
15 Correct 20 ms 23916 KB n=100
16 Correct 17 ms 23916 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 17 ms 23916 KB n=100
19 Correct 17 ms 23916 KB n=100
20 Correct 17 ms 23916 KB n=100
21 Correct 17 ms 23916 KB n=100
22 Correct 17 ms 23884 KB n=100
23 Correct 17 ms 23916 KB n=100
24 Correct 17 ms 23916 KB n=100
25 Correct 17 ms 23916 KB n=100
26 Correct 17 ms 23916 KB n=12
27 Correct 17 ms 23916 KB n=100
28 Correct 18 ms 23916 KB n=500
29 Correct 18 ms 24044 KB n=500
30 Correct 18 ms 24044 KB n=500
31 Correct 18 ms 24044 KB n=500
32 Correct 18 ms 23936 KB n=500
33 Correct 24 ms 24044 KB n=500
34 Correct 18 ms 24044 KB n=500
35 Correct 18 ms 24044 KB n=500
36 Correct 20 ms 23916 KB n=500
37 Correct 18 ms 24064 KB n=500
38 Correct 18 ms 23916 KB n=500
39 Correct 17 ms 24044 KB n=500
40 Correct 18 ms 24044 KB n=500
41 Correct 18 ms 24044 KB n=500
42 Correct 18 ms 23916 KB n=500
43 Correct 18 ms 23916 KB n=500
44 Correct 18 ms 23916 KB n=500
45 Correct 18 ms 23916 KB n=500
46 Correct 17 ms 24044 KB n=500
47 Correct 20 ms 24044 KB n=500
48 Correct 18 ms 23916 KB n=500
49 Correct 18 ms 24044 KB n=500
50 Correct 18 ms 23916 KB n=500
51 Correct 18 ms 24044 KB n=500
52 Correct 18 ms 24044 KB n=500
53 Correct 18 ms 24044 KB n=500
54 Correct 17 ms 24044 KB n=500
55 Correct 18 ms 23916 KB n=278
56 Correct 18 ms 24044 KB n=500
57 Correct 17 ms 24172 KB n=500
58 Correct 18 ms 24044 KB n=500
59 Correct 21 ms 24300 KB n=2000
60 Correct 20 ms 24428 KB n=2000
61 Correct 20 ms 24428 KB n=2000
62 Correct 22 ms 24428 KB n=2000
63 Correct 21 ms 24300 KB n=2000
64 Correct 21 ms 24428 KB n=2000
65 Correct 21 ms 24300 KB n=2000
66 Correct 20 ms 24428 KB n=2000
67 Correct 21 ms 24300 KB n=2000
68 Correct 20 ms 24428 KB n=2000
69 Correct 20 ms 24300 KB n=2000
70 Correct 20 ms 24300 KB n=2000
71 Correct 21 ms 24300 KB n=2000
72 Correct 22 ms 24320 KB n=2000
73 Correct 20 ms 24300 KB n=2000
74 Correct 20 ms 24300 KB n=1844
75 Correct 20 ms 24300 KB n=2000
76 Correct 21 ms 24428 KB n=2000
77 Correct 21 ms 24328 KB n=2000
78 Correct 21 ms 24300 KB n=2000
79 Correct 21 ms 24300 KB n=2000
80 Correct 20 ms 24428 KB n=2000
81 Correct 21 ms 24428 KB n=2000
82 Correct 22 ms 24300 KB n=2000
83 Correct 20 ms 24428 KB n=2000
84 Correct 21 ms 24300 KB n=2000
85 Correct 21 ms 24428 KB n=2000
86 Correct 21 ms 24428 KB n=2000
87 Correct 21 ms 24300 KB n=2000
88 Correct 20 ms 24428 KB n=2000
89 Correct 20 ms 24428 KB n=2000
90 Correct 21 ms 24428 KB n=2000
91 Correct 20 ms 24300 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 23916 KB n=5
2 Correct 17 ms 23916 KB n=100
3 Correct 17 ms 23916 KB n=100
4 Correct 17 ms 23916 KB n=100
5 Correct 20 ms 23916 KB n=100
6 Correct 17 ms 23916 KB n=100
7 Correct 17 ms 23916 KB n=100
8 Correct 18 ms 23916 KB n=100
9 Correct 18 ms 23916 KB n=100
10 Correct 17 ms 23916 KB n=100
11 Correct 17 ms 23916 KB n=100
12 Correct 17 ms 23916 KB n=100
13 Correct 17 ms 23916 KB n=100
14 Correct 17 ms 23916 KB n=100
15 Correct 20 ms 23916 KB n=100
16 Correct 17 ms 23916 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 17 ms 23916 KB n=100
19 Correct 17 ms 23916 KB n=100
20 Correct 17 ms 23916 KB n=100
21 Correct 17 ms 23916 KB n=100
22 Correct 17 ms 23884 KB n=100
23 Correct 17 ms 23916 KB n=100
24 Correct 17 ms 23916 KB n=100
25 Correct 17 ms 23916 KB n=100
26 Correct 17 ms 23916 KB n=12
27 Correct 17 ms 23916 KB n=100
28 Correct 18 ms 23916 KB n=500
29 Correct 18 ms 24044 KB n=500
30 Correct 18 ms 24044 KB n=500
31 Correct 18 ms 24044 KB n=500
32 Correct 18 ms 23936 KB n=500
33 Correct 24 ms 24044 KB n=500
34 Correct 18 ms 24044 KB n=500
35 Correct 18 ms 24044 KB n=500
36 Correct 20 ms 23916 KB n=500
37 Correct 18 ms 24064 KB n=500
38 Correct 18 ms 23916 KB n=500
39 Correct 17 ms 24044 KB n=500
40 Correct 18 ms 24044 KB n=500
41 Correct 18 ms 24044 KB n=500
42 Correct 18 ms 23916 KB n=500
43 Correct 18 ms 23916 KB n=500
44 Correct 18 ms 23916 KB n=500
45 Correct 18 ms 23916 KB n=500
46 Correct 17 ms 24044 KB n=500
47 Correct 20 ms 24044 KB n=500
48 Correct 18 ms 23916 KB n=500
49 Correct 18 ms 24044 KB n=500
50 Correct 18 ms 23916 KB n=500
51 Correct 18 ms 24044 KB n=500
52 Correct 18 ms 24044 KB n=500
53 Correct 18 ms 24044 KB n=500
54 Correct 17 ms 24044 KB n=500
55 Correct 18 ms 23916 KB n=278
56 Correct 18 ms 24044 KB n=500
57 Correct 17 ms 24172 KB n=500
58 Correct 18 ms 24044 KB n=500
59 Correct 21 ms 24300 KB n=2000
60 Correct 20 ms 24428 KB n=2000
61 Correct 20 ms 24428 KB n=2000
62 Correct 22 ms 24428 KB n=2000
63 Correct 21 ms 24300 KB n=2000
64 Correct 21 ms 24428 KB n=2000
65 Correct 21 ms 24300 KB n=2000
66 Correct 20 ms 24428 KB n=2000
67 Correct 21 ms 24300 KB n=2000
68 Correct 20 ms 24428 KB n=2000
69 Correct 20 ms 24300 KB n=2000
70 Correct 20 ms 24300 KB n=2000
71 Correct 21 ms 24300 KB n=2000
72 Correct 22 ms 24320 KB n=2000
73 Correct 20 ms 24300 KB n=2000
74 Correct 20 ms 24300 KB n=1844
75 Correct 20 ms 24300 KB n=2000
76 Correct 21 ms 24428 KB n=2000
77 Correct 21 ms 24328 KB n=2000
78 Correct 21 ms 24300 KB n=2000
79 Correct 21 ms 24300 KB n=2000
80 Correct 20 ms 24428 KB n=2000
81 Correct 21 ms 24428 KB n=2000
82 Correct 22 ms 24300 KB n=2000
83 Correct 20 ms 24428 KB n=2000
84 Correct 21 ms 24300 KB n=2000
85 Correct 21 ms 24428 KB n=2000
86 Correct 21 ms 24428 KB n=2000
87 Correct 21 ms 24300 KB n=2000
88 Correct 20 ms 24428 KB n=2000
89 Correct 20 ms 24428 KB n=2000
90 Correct 21 ms 24428 KB n=2000
91 Correct 20 ms 24300 KB n=2000
92 Correct 844 ms 69652 KB n=200000
93 Correct 939 ms 73196 KB n=200000
94 Correct 703 ms 76652 KB n=200000
95 Correct 830 ms 69328 KB n=200000
96 Correct 789 ms 69728 KB n=200000
97 Correct 1048 ms 72484 KB n=200000
98 Correct 817 ms 69400 KB n=200000
99 Correct 1014 ms 68972 KB n=200000
100 Correct 824 ms 69584 KB n=200000
101 Correct 626 ms 77804 KB n=200000
102 Correct 526 ms 70508 KB n=200000
103 Correct 522 ms 70380 KB n=200000
104 Correct 520 ms 70636 KB n=200000
105 Correct 526 ms 70124 KB n=200000
106 Correct 525 ms 70124 KB n=200000
107 Correct 549 ms 70124 KB n=200000
108 Correct 947 ms 69228 KB n=200000
109 Correct 947 ms 69228 KB n=200000
110 Correct 928 ms 69100 KB n=200000
111 Correct 858 ms 69548 KB n=200000
112 Correct 673 ms 76832 KB n=200000
113 Correct 982 ms 72300 KB n=200000
114 Correct 862 ms 69380 KB n=200000
115 Correct 1243 ms 70252 KB n=200000
116 Correct 790 ms 69220 KB n=200000
117 Correct 642 ms 77164 KB n=200000
118 Correct 1120 ms 71404 KB n=200000
119 Correct 787 ms 69224 KB n=200000
120 Correct 569 ms 77600 KB n=200000
121 Correct 588 ms 77676 KB n=200000
122 Correct 581 ms 78084 KB n=200000
123 Correct 556 ms 69792 KB n=200000
124 Correct 200 ms 37612 KB n=25264