oj.uz

Submission #495929

# Submission time Handle Problem Language Result Execution time Memory
495929 2021-12-20T08:07:56 Z kingline Birthday gift (IZhO18_treearray) C++17
100 / 100
 1228 ms 82532 KB 
#include <bits/stdc++.h>
#define pb push_back
#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define all(data) data.begin() , data.end()
#define endl '\n'
//freopen("nenokku_easy.in", "r", stdin);
//freopen("nenokku_easy.out", "w", stdout);
//#define int long long
#define pii pair < int, int >

using namespace std;

typedef long long ll;
const int N = 2e5 + 5;
const int lg = 21;

int n, m, q, tin[N], tout[N], sz, up[N][lg], a[N];
vector < int > g[N];

void dfs(int v, int pr) {
    tin[v] = ++sz;
    up[v][0] = pr;
    for(int i = 1; i < lg; i++) {
        up[v][i] = up[up[v][i - 1]][i - 1];
    }
    for(int i = 0; i < g[v].size(); i++) {
        int to = g[v][i];
        if(to != pr) {
            dfs(to, v);
        }
    }
    tout[v] = ++sz;
}

bool upper(int x, int y) {
    return tin[x] <= tin[y] && tout[x] >= tout[y];
}

int lca(int x, int y) {
    if(upper(x, y)) return x;
    if(upper(y, x)) return y;
    for(int i = lg - 1; i >= 0; i--) {
        if(up[x][i] == 0) continue;
        if(!upper(up[x][i], y)) {
            x = up[x][i];
        }
    }
    return up[x][0];
}

main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> m >> q;
    for(int i = 1; i < n; i++) {
        int a, b;
        cin >> a >> b;
        g[a].pb(b);
        g[b].pb(a);
    }
    dfs(1, 1);
    multiset < int > st1[N];
    for(int i = 1; i <= m; i++) {
        cin >> a[i];
        st1[a[i]].insert(i);
    }
    multiset < int > st2[N];
    for(int i = 1; i < m; i++) {
        int lc = lca(a[i], a[i + 1]);
        st2[lc].insert(i);
    }
    while(q--) {
        int tp, pos, l, r, v;
        cin >> tp;
        if(tp % 2) {
            cin >> pos >> v;
            st1[a[pos]].erase(pos);
            st1[v].insert(pos);
            if(pos != 1) {
                st2[lca(a[pos - 1], a[pos])].erase(pos - 1);
            }
            if(pos != m) {
                st2[lca(a[pos + 1], a[pos])].erase(pos);
            }
            if(pos != 1) {
                st2[lca(a[pos - 1], v)].insert(pos - 1);
            }
            if(pos != m) {
                st2[lca(a[pos + 1], v)].insert(pos);
            }
            a[pos] = v;
        } else {
            cin >> l >> r >> v;
            if(st1[v].size()) {
                int res = *st1[v].lower_bound(l);
                if(l <= res && res <= r) {
                    cout << res << " " << res << endl;
                    continue;
                }
            }
            if(st2[v].size()) {
                int res = *st2[v].lower_bound(l);
                if(l <= res && res < r) {
                    cout << res << " " << res + 1 << endl;
                    continue;
                }
            }
            cout << "-1 -1\n";
        }
    }
}

Compilation message

treearray.cpp: In function 'void dfs(int, int)':
treearray.cpp:26:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |     for(int i = 0; i < g[v].size(); i++) {
      |                    ~~^~~~~~~~~~~~~
treearray.cpp: At global scope:
treearray.cpp:51:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   51 | main() {
      | ^~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23780 KB n=5
2 Correct 16 ms 23732 KB n=100
3 Correct 14 ms 23756 KB n=100
4 Correct 13 ms 23756 KB n=100
5 Correct 14 ms 23756 KB n=100
6 Correct 14 ms 23756 KB n=100
7 Correct 15 ms 23736 KB n=100
8 Correct 14 ms 23844 KB n=100
9 Correct 14 ms 23832 KB n=100
10 Correct 14 ms 23792 KB n=100
11 Correct 13 ms 23716 KB n=100
12 Correct 13 ms 23832 KB n=100
13 Correct 14 ms 23756 KB n=100
14 Correct 14 ms 23756 KB n=100
15 Correct 14 ms 23756 KB n=100
16 Correct 19 ms 23764 KB n=100
17 Correct 16 ms 23756 KB n=100
18 Correct 14 ms 23756 KB n=100
19 Correct 15 ms 23756 KB n=100
20 Correct 16 ms 23820 KB n=100
21 Correct 14 ms 23732 KB n=100
22 Correct 15 ms 23800 KB n=100
23 Correct 15 ms 23756 KB n=100
24 Correct 15 ms 23756 KB n=100
25 Correct 19 ms 23776 KB n=100
26 Correct 15 ms 23756 KB n=12
27 Correct 15 ms 23808 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23780 KB n=5
2 Correct 16 ms 23732 KB n=100
3 Correct 14 ms 23756 KB n=100
4 Correct 13 ms 23756 KB n=100
5 Correct 14 ms 23756 KB n=100
6 Correct 14 ms 23756 KB n=100
7 Correct 15 ms 23736 KB n=100
8 Correct 14 ms 23844 KB n=100
9 Correct 14 ms 23832 KB n=100
10 Correct 14 ms 23792 KB n=100
11 Correct 13 ms 23716 KB n=100
12 Correct 13 ms 23832 KB n=100
13 Correct 14 ms 23756 KB n=100
14 Correct 14 ms 23756 KB n=100
15 Correct 14 ms 23756 KB n=100
16 Correct 19 ms 23764 KB n=100
17 Correct 16 ms 23756 KB n=100
18 Correct 14 ms 23756 KB n=100
19 Correct 15 ms 23756 KB n=100
20 Correct 16 ms 23820 KB n=100
21 Correct 14 ms 23732 KB n=100
22 Correct 15 ms 23800 KB n=100
23 Correct 15 ms 23756 KB n=100
24 Correct 15 ms 23756 KB n=100
25 Correct 19 ms 23776 KB n=100
26 Correct 15 ms 23756 KB n=12
27 Correct 15 ms 23808 KB n=100
28 Correct 16 ms 23884 KB n=500
29 Correct 14 ms 23920 KB n=500
30 Correct 14 ms 23928 KB n=500
31 Correct 14 ms 23884 KB n=500
32 Correct 15 ms 23828 KB n=500
33 Correct 15 ms 23884 KB n=500
34 Correct 16 ms 23924 KB n=500
35 Correct 17 ms 23884 KB n=500
36 Correct 15 ms 23812 KB n=500
37 Correct 16 ms 23840 KB n=500
38 Correct 15 ms 23884 KB n=500
39 Correct 15 ms 23848 KB n=500
40 Correct 14 ms 23884 KB n=500
41 Correct 15 ms 23884 KB n=500
42 Correct 16 ms 23868 KB n=500
43 Correct 17 ms 23884 KB n=500
44 Correct 16 ms 23908 KB n=500
45 Correct 15 ms 23884 KB n=500
46 Correct 15 ms 23940 KB n=500
47 Correct 16 ms 23936 KB n=500
48 Correct 16 ms 23888 KB n=500
49 Correct 14 ms 23884 KB n=500
50 Correct 15 ms 23884 KB n=500
51 Correct 16 ms 23924 KB n=500
52 Correct 15 ms 23884 KB n=500
53 Correct 15 ms 23940 KB n=500
54 Correct 15 ms 23940 KB n=500
55 Correct 19 ms 23888 KB n=278
56 Correct 15 ms 23884 KB n=500
57 Correct 16 ms 23936 KB n=500
58 Correct 15 ms 23936 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23780 KB n=5
2 Correct 16 ms 23732 KB n=100
3 Correct 14 ms 23756 KB n=100
4 Correct 13 ms 23756 KB n=100
5 Correct 14 ms 23756 KB n=100
6 Correct 14 ms 23756 KB n=100
7 Correct 15 ms 23736 KB n=100
8 Correct 14 ms 23844 KB n=100
9 Correct 14 ms 23832 KB n=100
10 Correct 14 ms 23792 KB n=100
11 Correct 13 ms 23716 KB n=100
12 Correct 13 ms 23832 KB n=100
13 Correct 14 ms 23756 KB n=100
14 Correct 14 ms 23756 KB n=100
15 Correct 14 ms 23756 KB n=100
16 Correct 19 ms 23764 KB n=100
17 Correct 16 ms 23756 KB n=100
18 Correct 14 ms 23756 KB n=100
19 Correct 15 ms 23756 KB n=100
20 Correct 16 ms 23820 KB n=100
21 Correct 14 ms 23732 KB n=100
22 Correct 15 ms 23800 KB n=100
23 Correct 15 ms 23756 KB n=100
24 Correct 15 ms 23756 KB n=100
25 Correct 19 ms 23776 KB n=100
26 Correct 15 ms 23756 KB n=12
27 Correct 15 ms 23808 KB n=100
28 Correct 16 ms 23884 KB n=500
29 Correct 14 ms 23920 KB n=500
30 Correct 14 ms 23928 KB n=500
31 Correct 14 ms 23884 KB n=500
32 Correct 15 ms 23828 KB n=500
33 Correct 15 ms 23884 KB n=500
34 Correct 16 ms 23924 KB n=500
35 Correct 17 ms 23884 KB n=500
36 Correct 15 ms 23812 KB n=500
37 Correct 16 ms 23840 KB n=500
38 Correct 15 ms 23884 KB n=500
39 Correct 15 ms 23848 KB n=500
40 Correct 14 ms 23884 KB n=500
41 Correct 15 ms 23884 KB n=500
42 Correct 16 ms 23868 KB n=500
43 Correct 17 ms 23884 KB n=500
44 Correct 16 ms 23908 KB n=500
45 Correct 15 ms 23884 KB n=500
46 Correct 15 ms 23940 KB n=500
47 Correct 16 ms 23936 KB n=500
48 Correct 16 ms 23888 KB n=500
49 Correct 14 ms 23884 KB n=500
50 Correct 15 ms 23884 KB n=500
51 Correct 16 ms 23924 KB n=500
52 Correct 15 ms 23884 KB n=500
53 Correct 15 ms 23940 KB n=500
54 Correct 15 ms 23940 KB n=500
55 Correct 19 ms 23888 KB n=278
56 Correct 15 ms 23884 KB n=500
57 Correct 16 ms 23936 KB n=500
58 Correct 15 ms 23936 KB n=500
59 Correct 18 ms 24268 KB n=2000
60 Correct 17 ms 24360 KB n=2000
61 Correct 20 ms 24328 KB n=2000
62 Correct 19 ms 24304 KB n=2000
63 Correct 17 ms 24240 KB n=2000
64 Correct 17 ms 24248 KB n=2000
65 Correct 18 ms 24268 KB n=2000
66 Correct 18 ms 24272 KB n=2000
67 Correct 21 ms 24264 KB n=2000
68 Correct 17 ms 24268 KB n=2000
69 Correct 19 ms 24192 KB n=2000
70 Correct 16 ms 24288 KB n=2000
71 Correct 17 ms 24284 KB n=2000
72 Correct 16 ms 24268 KB n=2000
73 Correct 16 ms 24268 KB n=2000
74 Correct 16 ms 24196 KB n=1844
75 Correct 16 ms 24268 KB n=2000
76 Correct 20 ms 24196 KB n=2000
77 Correct 18 ms 24264 KB n=2000
78 Correct 18 ms 24232 KB n=2000
79 Correct 18 ms 24272 KB n=2000
80 Correct 16 ms 24268 KB n=2000
81 Correct 18 ms 24320 KB n=2000
82 Correct 17 ms 24272 KB n=2000
83 Correct 18 ms 24260 KB n=2000
84 Correct 19 ms 24268 KB n=2000
85 Correct 18 ms 24268 KB n=2000
86 Correct 17 ms 24268 KB n=2000
87 Correct 20 ms 24176 KB n=2000
88 Correct 16 ms 24396 KB n=2000
89 Correct 17 ms 24288 KB n=2000
90 Correct 17 ms 24256 KB n=2000
91 Correct 16 ms 24252 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23780 KB n=5
2 Correct 16 ms 23732 KB n=100
3 Correct 14 ms 23756 KB n=100
4 Correct 13 ms 23756 KB n=100
5 Correct 14 ms 23756 KB n=100
6 Correct 14 ms 23756 KB n=100
7 Correct 15 ms 23736 KB n=100
8 Correct 14 ms 23844 KB n=100
9 Correct 14 ms 23832 KB n=100
10 Correct 14 ms 23792 KB n=100
11 Correct 13 ms 23716 KB n=100
12 Correct 13 ms 23832 KB n=100
13 Correct 14 ms 23756 KB n=100
14 Correct 14 ms 23756 KB n=100
15 Correct 14 ms 23756 KB n=100
16 Correct 19 ms 23764 KB n=100
17 Correct 16 ms 23756 KB n=100
18 Correct 14 ms 23756 KB n=100
19 Correct 15 ms 23756 KB n=100
20 Correct 16 ms 23820 KB n=100
21 Correct 14 ms 23732 KB n=100
22 Correct 15 ms 23800 KB n=100
23 Correct 15 ms 23756 KB n=100
24 Correct 15 ms 23756 KB n=100
25 Correct 19 ms 23776 KB n=100
26 Correct 15 ms 23756 KB n=12
27 Correct 15 ms 23808 KB n=100
28 Correct 16 ms 23884 KB n=500
29 Correct 14 ms 23920 KB n=500
30 Correct 14 ms 23928 KB n=500
31 Correct 14 ms 23884 KB n=500
32 Correct 15 ms 23828 KB n=500
33 Correct 15 ms 23884 KB n=500
34 Correct 16 ms 23924 KB n=500
35 Correct 17 ms 23884 KB n=500
36 Correct 15 ms 23812 KB n=500
37 Correct 16 ms 23840 KB n=500
38 Correct 15 ms 23884 KB n=500
39 Correct 15 ms 23848 KB n=500
40 Correct 14 ms 23884 KB n=500
41 Correct 15 ms 23884 KB n=500
42 Correct 16 ms 23868 KB n=500
43 Correct 17 ms 23884 KB n=500
44 Correct 16 ms 23908 KB n=500
45 Correct 15 ms 23884 KB n=500
46 Correct 15 ms 23940 KB n=500
47 Correct 16 ms 23936 KB n=500
48 Correct 16 ms 23888 KB n=500
49 Correct 14 ms 23884 KB n=500
50 Correct 15 ms 23884 KB n=500
51 Correct 16 ms 23924 KB n=500
52 Correct 15 ms 23884 KB n=500
53 Correct 15 ms 23940 KB n=500
54 Correct 15 ms 23940 KB n=500
55 Correct 19 ms 23888 KB n=278
56 Correct 15 ms 23884 KB n=500
57 Correct 16 ms 23936 KB n=500
58 Correct 15 ms 23936 KB n=500
59 Correct 18 ms 24268 KB n=2000
60 Correct 17 ms 24360 KB n=2000
61 Correct 20 ms 24328 KB n=2000
62 Correct 19 ms 24304 KB n=2000
63 Correct 17 ms 24240 KB n=2000
64 Correct 17 ms 24248 KB n=2000
65 Correct 18 ms 24268 KB n=2000
66 Correct 18 ms 24272 KB n=2000
67 Correct 21 ms 24264 KB n=2000
68 Correct 17 ms 24268 KB n=2000
69 Correct 19 ms 24192 KB n=2000
70 Correct 16 ms 24288 KB n=2000
71 Correct 17 ms 24284 KB n=2000
72 Correct 16 ms 24268 KB n=2000
73 Correct 16 ms 24268 KB n=2000
74 Correct 16 ms 24196 KB n=1844
75 Correct 16 ms 24268 KB n=2000
76 Correct 20 ms 24196 KB n=2000
77 Correct 18 ms 24264 KB n=2000
78 Correct 18 ms 24232 KB n=2000
79 Correct 18 ms 24272 KB n=2000
80 Correct 16 ms 24268 KB n=2000
81 Correct 18 ms 24320 KB n=2000
82 Correct 17 ms 24272 KB n=2000
83 Correct 18 ms 24260 KB n=2000
84 Correct 19 ms 24268 KB n=2000
85 Correct 18 ms 24268 KB n=2000
86 Correct 17 ms 24268 KB n=2000
87 Correct 20 ms 24176 KB n=2000
88 Correct 16 ms 24396 KB n=2000
89 Correct 17 ms 24288 KB n=2000
90 Correct 17 ms 24256 KB n=2000
91 Correct 16 ms 24252 KB n=2000
92 Correct 710 ms 69656 KB n=200000
93 Correct 832 ms 74880 KB n=200000
94 Correct 591 ms 79324 KB n=200000
95 Correct 641 ms 69412 KB n=200000
96 Correct 704 ms 69476 KB n=200000
97 Correct 882 ms 73668 KB n=200000
98 Correct 768 ms 69460 KB n=200000
99 Correct 967 ms 68916 KB n=200000
100 Correct 735 ms 69544 KB n=200000
101 Correct 604 ms 80980 KB n=200000
102 Correct 476 ms 70388 KB n=200000
103 Correct 454 ms 70396 KB n=200000
104 Correct 493 ms 70328 KB n=200000
105 Correct 426 ms 70156 KB n=200000
106 Correct 473 ms 70164 KB n=200000
107 Correct 433 ms 70176 KB n=200000
108 Correct 763 ms 69068 KB n=200000
109 Correct 920 ms 69124 KB n=200000
110 Correct 911 ms 69144 KB n=200000
111 Correct 818 ms 69336 KB n=200000
112 Correct 698 ms 79616 KB n=200000
113 Correct 1088 ms 73620 KB n=200000
114 Correct 871 ms 69528 KB n=200000
115 Correct 1228 ms 70908 KB n=200000
116 Correct 759 ms 69732 KB n=200000
117 Correct 638 ms 80940 KB n=200000
118 Correct 1217 ms 73288 KB n=200000
119 Correct 723 ms 70456 KB n=200000
120 Correct 526 ms 81976 KB n=200000
121 Correct 477 ms 81996 KB n=200000
122 Correct 453 ms 82532 KB n=200000
123 Correct 423 ms 71040 KB n=200000
124 Correct 191 ms 38592 KB n=25264