oj.uz

Submission #525927

# Submission time Handle Problem Language Result Execution time Memory
525927 2022-02-13T08:26:41 Z Dilshod_Imomov Birthday gift (IZhO18_treearray) C++17
100 / 100
 918 ms 77276 KB 
# include <bits/stdc++.h>
# define speed ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
// # define int long long
# define fi first
# define se second
 
using namespace std;
 
const int N = 2e5 + 1;
const int mod = 1e9 + 7;
// const int INF = 1e18;

vector < int > adj[N];
set < int > pos[N], pos2[N];
int a[N], tin[N], tout[N], timer = 1, up[N][20], lg;

void dfs( int v, int pr ) {
   tin[v] = timer++;
   up[v][0] = pr;
   for ( int i = 1; i <= lg; i++ ) {
      up[v][i] = up[ up[v][i - 1] ][i - 1];
   }
   for ( auto u: adj[v] ) {
      if ( u != pr ) {
         dfs(u, v);
      }
   }
   tout[v] = timer;
}

bool is_ancestor( int v, int u ) {
   return tin[v] <= tin[u] && tout[v] >= tout[u];
}

int lca( int v, int u ) {
   if ( is_ancestor(v, u) ) {
      return v;
   }
   if ( is_ancestor(u, v) ) {
      return u;
   }
   for ( int i = lg; i >= 0; i-- ) {
      if ( !is_ancestor(up[v][i], u) ) {
         v = up[v][i];
      }
   }
   return up[v][0];
}

int32_t main() {
   speed;
   int n, m, q;
   cin >> n >> m >> q;
   lg = log2(n) + 1;
   for ( int i = 1; i < n; i++ ) {
      int u, v;
      cin >> u >> v;
      adj[u].push_back(v);
      adj[v].push_back(u);
   }
   dfs(1, 1);
   for ( int i = 1; i <= m; i++ ) {
      cin >> a[i];
   }
   for ( int i = 1; i < m; i++ ) {
      pos[ a[i] ].insert(i);
      pos2[ lca( a[i], a[i + 1] ) ].insert(i);
   }
   pos[ a[m] ].insert(m);
   for ( int i = 1; i <= q; i++ ) {
      int t;
      cin >> t;
      if ( t == 1 ) {
         int p, v;
         cin >> p >> v;
         pos[ a[p] ].erase(p);
         if ( p > 1 ) {
            pos2[ lca( a[p - 1], a[p] ) ].erase( p - 1 );
         }
         if ( p != m ) {
            pos2[ lca( a[p], a[p + 1] ) ].erase( p );
         }
         a[p] = v;
         pos[ a[p] ].insert(p);
         if ( p > 1 ) {
            pos2[ lca( a[p - 1], a[p] ) ].insert(p - 1);
         }
         if ( p != m ) {
            pos2[ lca( a[p], a[p + 1] ) ].insert(p);
         }
      }
      else {
         int l, r, v;
         cin >> l >> r >> v;
         if ( !pos[v].empty() ) {
            auto it = pos[v].lower_bound(l);
            if ( it != pos[v].end() ) {
               int j = *it;
               if ( j <= r ) {
                  cout << j << ' ' << j << "\n";
                  continue;
               }
            }
         }
         if ( !pos2[v].empty() ) {
            auto it = pos2[v].lower_bound(l);
            if ( it != pos2[v].end() ) {
               int j = *it;
               if ( j < r ) {
                  cout << j << ' ' << j + 1 << "\n";
                  continue;
               }
            }
         }
         cout << "-1 -1\n";
      }
   }
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB n=5
2 Correct 12 ms 23760 KB n=100
3 Correct 13 ms 23840 KB n=100
4 Correct 12 ms 23844 KB n=100
5 Correct 12 ms 23756 KB n=100
6 Correct 13 ms 23756 KB n=100
7 Correct 12 ms 23756 KB n=100
8 Correct 12 ms 23756 KB n=100
9 Correct 12 ms 23760 KB n=100
10 Correct 13 ms 23756 KB n=100
11 Correct 15 ms 23884 KB n=100
12 Correct 12 ms 23844 KB n=100
13 Correct 12 ms 23756 KB n=100
14 Correct 12 ms 23788 KB n=100
15 Correct 12 ms 23756 KB n=100
16 Correct 12 ms 23756 KB n=100
17 Correct 12 ms 23756 KB n=100
18 Correct 13 ms 23828 KB n=100
19 Correct 12 ms 23756 KB n=100
20 Correct 12 ms 23756 KB n=100
21 Correct 12 ms 23756 KB n=100
22 Correct 12 ms 23828 KB n=100
23 Correct 13 ms 23800 KB n=100
24 Correct 12 ms 23756 KB n=100
25 Correct 12 ms 23756 KB n=100
26 Correct 13 ms 23756 KB n=12
27 Correct 12 ms 23732 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB n=5
2 Correct 12 ms 23760 KB n=100
3 Correct 13 ms 23840 KB n=100
4 Correct 12 ms 23844 KB n=100
5 Correct 12 ms 23756 KB n=100
6 Correct 13 ms 23756 KB n=100
7 Correct 12 ms 23756 KB n=100
8 Correct 12 ms 23756 KB n=100
9 Correct 12 ms 23760 KB n=100
10 Correct 13 ms 23756 KB n=100
11 Correct 15 ms 23884 KB n=100
12 Correct 12 ms 23844 KB n=100
13 Correct 12 ms 23756 KB n=100
14 Correct 12 ms 23788 KB n=100
15 Correct 12 ms 23756 KB n=100
16 Correct 12 ms 23756 KB n=100
17 Correct 12 ms 23756 KB n=100
18 Correct 13 ms 23828 KB n=100
19 Correct 12 ms 23756 KB n=100
20 Correct 12 ms 23756 KB n=100
21 Correct 12 ms 23756 KB n=100
22 Correct 12 ms 23828 KB n=100
23 Correct 13 ms 23800 KB n=100
24 Correct 12 ms 23756 KB n=100
25 Correct 12 ms 23756 KB n=100
26 Correct 13 ms 23756 KB n=12
27 Correct 12 ms 23732 KB n=100
28 Correct 13 ms 23892 KB n=500
29 Correct 14 ms 23884 KB n=500
30 Correct 15 ms 23888 KB n=500
31 Correct 13 ms 23884 KB n=500
32 Correct 12 ms 23936 KB n=500
33 Correct 12 ms 23900 KB n=500
34 Correct 12 ms 23884 KB n=500
35 Correct 12 ms 23884 KB n=500
36 Correct 12 ms 23884 KB n=500
37 Correct 12 ms 23884 KB n=500
38 Correct 14 ms 23856 KB n=500
39 Correct 12 ms 23884 KB n=500
40 Correct 12 ms 23884 KB n=500
41 Correct 12 ms 23836 KB n=500
42 Correct 14 ms 23876 KB n=500
43 Correct 13 ms 23936 KB n=500
44 Correct 13 ms 23940 KB n=500
45 Correct 13 ms 23884 KB n=500
46 Correct 14 ms 23948 KB n=500
47 Correct 13 ms 23952 KB n=500
48 Correct 12 ms 23884 KB n=500
49 Correct 13 ms 23936 KB n=500
50 Correct 13 ms 23884 KB n=500
51 Correct 12 ms 23884 KB n=500
52 Correct 13 ms 23884 KB n=500
53 Correct 12 ms 23912 KB n=500
54 Correct 13 ms 23880 KB n=500
55 Correct 13 ms 23992 KB n=278
56 Correct 12 ms 23960 KB n=500
57 Correct 12 ms 23924 KB n=500
58 Correct 13 ms 23884 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB n=5
2 Correct 12 ms 23760 KB n=100
3 Correct 13 ms 23840 KB n=100
4 Correct 12 ms 23844 KB n=100
5 Correct 12 ms 23756 KB n=100
6 Correct 13 ms 23756 KB n=100
7 Correct 12 ms 23756 KB n=100
8 Correct 12 ms 23756 KB n=100
9 Correct 12 ms 23760 KB n=100
10 Correct 13 ms 23756 KB n=100
11 Correct 15 ms 23884 KB n=100
12 Correct 12 ms 23844 KB n=100
13 Correct 12 ms 23756 KB n=100
14 Correct 12 ms 23788 KB n=100
15 Correct 12 ms 23756 KB n=100
16 Correct 12 ms 23756 KB n=100
17 Correct 12 ms 23756 KB n=100
18 Correct 13 ms 23828 KB n=100
19 Correct 12 ms 23756 KB n=100
20 Correct 12 ms 23756 KB n=100
21 Correct 12 ms 23756 KB n=100
22 Correct 12 ms 23828 KB n=100
23 Correct 13 ms 23800 KB n=100
24 Correct 12 ms 23756 KB n=100
25 Correct 12 ms 23756 KB n=100
26 Correct 13 ms 23756 KB n=12
27 Correct 12 ms 23732 KB n=100
28 Correct 13 ms 23892 KB n=500
29 Correct 14 ms 23884 KB n=500
30 Correct 15 ms 23888 KB n=500
31 Correct 13 ms 23884 KB n=500
32 Correct 12 ms 23936 KB n=500
33 Correct 12 ms 23900 KB n=500
34 Correct 12 ms 23884 KB n=500
35 Correct 12 ms 23884 KB n=500
36 Correct 12 ms 23884 KB n=500
37 Correct 12 ms 23884 KB n=500
38 Correct 14 ms 23856 KB n=500
39 Correct 12 ms 23884 KB n=500
40 Correct 12 ms 23884 KB n=500
41 Correct 12 ms 23836 KB n=500
42 Correct 14 ms 23876 KB n=500
43 Correct 13 ms 23936 KB n=500
44 Correct 13 ms 23940 KB n=500
45 Correct 13 ms 23884 KB n=500
46 Correct 14 ms 23948 KB n=500
47 Correct 13 ms 23952 KB n=500
48 Correct 12 ms 23884 KB n=500
49 Correct 13 ms 23936 KB n=500
50 Correct 13 ms 23884 KB n=500
51 Correct 12 ms 23884 KB n=500
52 Correct 13 ms 23884 KB n=500
53 Correct 12 ms 23912 KB n=500
54 Correct 13 ms 23880 KB n=500
55 Correct 13 ms 23992 KB n=278
56 Correct 12 ms 23960 KB n=500
57 Correct 12 ms 23924 KB n=500
58 Correct 13 ms 23884 KB n=500
59 Correct 14 ms 24156 KB n=2000
60 Correct 14 ms 24328 KB n=2000
61 Correct 15 ms 24268 KB n=2000
62 Correct 14 ms 24276 KB n=2000
63 Correct 15 ms 24200 KB n=2000
64 Correct 15 ms 24268 KB n=2000
65 Correct 14 ms 24156 KB n=2000
66 Correct 14 ms 24208 KB n=2000
67 Correct 15 ms 24268 KB n=2000
68 Correct 15 ms 24268 KB n=2000
69 Correct 14 ms 24240 KB n=2000
70 Correct 14 ms 24280 KB n=2000
71 Correct 14 ms 24268 KB n=2000
72 Correct 14 ms 24268 KB n=2000
73 Correct 14 ms 24268 KB n=2000
74 Correct 17 ms 24248 KB n=1844
75 Correct 14 ms 24268 KB n=2000
76 Correct 16 ms 24268 KB n=2000
77 Correct 15 ms 24228 KB n=2000
78 Correct 15 ms 24268 KB n=2000
79 Correct 16 ms 24236 KB n=2000
80 Correct 14 ms 24268 KB n=2000
81 Correct 14 ms 24268 KB n=2000
82 Correct 15 ms 24208 KB n=2000
83 Correct 17 ms 24268 KB n=2000
84 Correct 16 ms 24184 KB n=2000
85 Correct 15 ms 24268 KB n=2000
86 Correct 15 ms 24268 KB n=2000
87 Correct 15 ms 24200 KB n=2000
88 Correct 14 ms 24360 KB n=2000
89 Correct 17 ms 24288 KB n=2000
90 Correct 14 ms 24268 KB n=2000
91 Correct 14 ms 24268 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB n=5
2 Correct 12 ms 23760 KB n=100
3 Correct 13 ms 23840 KB n=100
4 Correct 12 ms 23844 KB n=100
5 Correct 12 ms 23756 KB n=100
6 Correct 13 ms 23756 KB n=100
7 Correct 12 ms 23756 KB n=100
8 Correct 12 ms 23756 KB n=100
9 Correct 12 ms 23760 KB n=100
10 Correct 13 ms 23756 KB n=100
11 Correct 15 ms 23884 KB n=100
12 Correct 12 ms 23844 KB n=100
13 Correct 12 ms 23756 KB n=100
14 Correct 12 ms 23788 KB n=100
15 Correct 12 ms 23756 KB n=100
16 Correct 12 ms 23756 KB n=100
17 Correct 12 ms 23756 KB n=100
18 Correct 13 ms 23828 KB n=100
19 Correct 12 ms 23756 KB n=100
20 Correct 12 ms 23756 KB n=100
21 Correct 12 ms 23756 KB n=100
22 Correct 12 ms 23828 KB n=100
23 Correct 13 ms 23800 KB n=100
24 Correct 12 ms 23756 KB n=100
25 Correct 12 ms 23756 KB n=100
26 Correct 13 ms 23756 KB n=12
27 Correct 12 ms 23732 KB n=100
28 Correct 13 ms 23892 KB n=500
29 Correct 14 ms 23884 KB n=500
30 Correct 15 ms 23888 KB n=500
31 Correct 13 ms 23884 KB n=500
32 Correct 12 ms 23936 KB n=500
33 Correct 12 ms 23900 KB n=500
34 Correct 12 ms 23884 KB n=500
35 Correct 12 ms 23884 KB n=500
36 Correct 12 ms 23884 KB n=500
37 Correct 12 ms 23884 KB n=500
38 Correct 14 ms 23856 KB n=500
39 Correct 12 ms 23884 KB n=500
40 Correct 12 ms 23884 KB n=500
41 Correct 12 ms 23836 KB n=500
42 Correct 14 ms 23876 KB n=500
43 Correct 13 ms 23936 KB n=500
44 Correct 13 ms 23940 KB n=500
45 Correct 13 ms 23884 KB n=500
46 Correct 14 ms 23948 KB n=500
47 Correct 13 ms 23952 KB n=500
48 Correct 12 ms 23884 KB n=500
49 Correct 13 ms 23936 KB n=500
50 Correct 13 ms 23884 KB n=500
51 Correct 12 ms 23884 KB n=500
52 Correct 13 ms 23884 KB n=500
53 Correct 12 ms 23912 KB n=500
54 Correct 13 ms 23880 KB n=500
55 Correct 13 ms 23992 KB n=278
56 Correct 12 ms 23960 KB n=500
57 Correct 12 ms 23924 KB n=500
58 Correct 13 ms 23884 KB n=500
59 Correct 14 ms 24156 KB n=2000
60 Correct 14 ms 24328 KB n=2000
61 Correct 15 ms 24268 KB n=2000
62 Correct 14 ms 24276 KB n=2000
63 Correct 15 ms 24200 KB n=2000
64 Correct 15 ms 24268 KB n=2000
65 Correct 14 ms 24156 KB n=2000
66 Correct 14 ms 24208 KB n=2000
67 Correct 15 ms 24268 KB n=2000
68 Correct 15 ms 24268 KB n=2000
69 Correct 14 ms 24240 KB n=2000
70 Correct 14 ms 24280 KB n=2000
71 Correct 14 ms 24268 KB n=2000
72 Correct 14 ms 24268 KB n=2000
73 Correct 14 ms 24268 KB n=2000
74 Correct 17 ms 24248 KB n=1844
75 Correct 14 ms 24268 KB n=2000
76 Correct 16 ms 24268 KB n=2000
77 Correct 15 ms 24228 KB n=2000
78 Correct 15 ms 24268 KB n=2000
79 Correct 16 ms 24236 KB n=2000
80 Correct 14 ms 24268 KB n=2000
81 Correct 14 ms 24268 KB n=2000
82 Correct 15 ms 24208 KB n=2000
83 Correct 17 ms 24268 KB n=2000
84 Correct 16 ms 24184 KB n=2000
85 Correct 15 ms 24268 KB n=2000
86 Correct 15 ms 24268 KB n=2000
87 Correct 15 ms 24200 KB n=2000
88 Correct 14 ms 24360 KB n=2000
89 Correct 17 ms 24288 KB n=2000
90 Correct 14 ms 24268 KB n=2000
91 Correct 14 ms 24268 KB n=2000
92 Correct 692 ms 68936 KB n=200000
93 Correct 692 ms 72440 KB n=200000
94 Correct 512 ms 75868 KB n=200000
95 Correct 648 ms 68904 KB n=200000
96 Correct 631 ms 68796 KB n=200000
97 Correct 761 ms 71584 KB n=200000
98 Correct 647 ms 68872 KB n=200000
99 Correct 799 ms 68160 KB n=200000
100 Correct 637 ms 68764 KB n=200000
101 Correct 474 ms 77208 KB n=200000
102 Correct 383 ms 69696 KB n=200000
103 Correct 391 ms 69656 KB n=200000
104 Correct 387 ms 69780 KB n=200000
105 Correct 399 ms 69524 KB n=200000
106 Correct 400 ms 69400 KB n=200000
107 Correct 405 ms 69428 KB n=200000
108 Correct 696 ms 68348 KB n=200000
109 Correct 683 ms 68292 KB n=200000
110 Correct 706 ms 68384 KB n=200000
111 Correct 655 ms 68604 KB n=200000
112 Correct 488 ms 76228 KB n=200000
113 Correct 735 ms 71572 KB n=200000
114 Correct 637 ms 68536 KB n=200000
115 Correct 918 ms 69444 KB n=200000
116 Correct 615 ms 68472 KB n=200000
117 Correct 461 ms 76444 KB n=200000
118 Correct 811 ms 70416 KB n=200000
119 Correct 610 ms 68700 KB n=200000
120 Correct 430 ms 76988 KB n=200000
121 Correct 418 ms 76844 KB n=200000
122 Correct 416 ms 77276 KB n=200000
123 Correct 401 ms 69068 KB n=200000
124 Correct 138 ms 36804 KB n=25264