oj.uz

Submission #608790

# Submission time Handle Problem Language Result Execution time Memory
608790 2022-07-27T10:11:35 Z messiuuuuu Birthday gift (IZhO18_treearray) C++14
100 / 100
 1259 ms 85504 KB 
///https://codeforces.com/group/Chft8wRRWW/contest/391796/problem/D
///https://oj.uz/problem/submit/IZhO18_treearray
#include<bits/stdc++.h>
#define task "C"
#define ll long long
#define ld long double
#define fi first
#define se second
#define pb push_back
using namespace std;
const int MAXN = 2e5 + 5;
const ll INF = 1e18 + 5;
const int LOGN = 18;

int n, m, q;
vector<int> Adj[MAXN];
int a[MAXN];

void Input()
{
    cin >> n >> m >> q;
    for (int i = 1; i < n; i++)
    {
        int u, v;
        cin >> u >> v;
        Adj[u].pb(v);
        Adj[v].pb(u);
    }
    for (int i = 1; i <= m; i++)
    {
        cin >> a[i];
    }
}

int P[MAXN][LOGN], dep[MAXN];

void DFS(int u, int par)
{
    for (int v : Adj[u])
    {
        if (v == par)
        {
            continue;
        }
        dep[v] = dep[u] + 1;
        P[v][0] = u;
        DFS(v, u);
    }
}

int LCA(int u, int v)
{
    if (dep[u] > dep[v])
        swap(u, v);
    for (int i = LOGN - 1; i >= 0; i--)
    {
        if (dep[u] <= dep[P[v][i]])
        {
            v = P[v][i];
        }
    }
    for (int i = LOGN - 1; i >= 0; i--)
    {
        if (P[u][i] != P[v][i])
        {
            u = P[u][i];
            v = P[v][i];
        }
    }
    if (u != v)
    {
        u = P[u][0];
    }
    return u;
}

set<int> S[MAXN], S1[MAXN];

void Solve()
{
    dep[1] = 1;
    DFS(1, 0);
    for (int i = 1; i < LOGN; i++)
        for (int j = 1; j <= n; j++)
            P[j][i] = P[P[j][i - 1]][i - 1];

    for (int i = 1; i <= m; i++)
    {
        S[a[i]].insert(i);
        if (i < m)
            S1[LCA(a[i], a[i + 1])].insert(i);
    }

    while (q-- > 0)
    {
        int t, l, r;
        cin >> t >> l >> r;
        if (t == 1)
        {
            S[a[l]].erase(l);
            S[r].insert(l);

            if (l < m)
            {
                S1[LCA(a[l], a[l + 1])].erase(l);
                S1[LCA(r, a[l + 1])].insert(l);
            }

            if (l > 1)
            {
                S1[LCA(a[l - 1], a[l])].erase(l - 1);
                S1[LCA(a[l - 1], r)].insert(l - 1);
            }

            a[l] = r;
        } else
        {
            int k;
            cin >> k;
            auto it = S[k].lower_bound(l);
            if (it != S[k].end() && *it <= r)
            {
                cout << *it << ' ' << *it << '\n';
            } else
            {
                it = S1[k].lower_bound(l);
                if (it != S1[k].end() && *it + 1 <= r)
                {
                    cout << *it << ' ' << *it + 1 << '\n';
                } else
                    cout << -1 << ' ' << -1 << '\n';
            }
        }
    }
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    if (fopen(task".INP","r"))
    {
        freopen(task".INP","r",stdin);
        //freopen(task".OUT","w",stdout);
    }
    Input();
    Solve();
}

Compilation message

treearray.cpp: In function 'int main()':
treearray.cpp:143:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  143 |         freopen(task".INP","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB n=5
2 Correct 13 ms 23764 KB n=100
3 Correct 11 ms 23764 KB n=100
4 Correct 12 ms 23788 KB n=100
5 Correct 11 ms 23764 KB n=100
6 Correct 11 ms 23764 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 13 ms 23764 KB n=100
9 Correct 13 ms 23764 KB n=100
10 Correct 13 ms 23856 KB n=100
11 Correct 13 ms 23804 KB n=100
12 Correct 12 ms 23764 KB n=100
13 Correct 11 ms 23764 KB n=100
14 Correct 11 ms 23764 KB n=100
15 Correct 11 ms 23720 KB n=100
16 Correct 11 ms 23764 KB n=100
17 Correct 12 ms 23764 KB n=100
18 Correct 11 ms 23764 KB n=100
19 Correct 13 ms 23764 KB n=100
20 Correct 14 ms 23724 KB n=100
21 Correct 11 ms 23728 KB n=100
22 Correct 12 ms 23800 KB n=100
23 Correct 11 ms 23804 KB n=100
24 Correct 11 ms 23764 KB n=100
25 Correct 11 ms 23764 KB n=100
26 Correct 11 ms 23816 KB n=12
27 Correct 13 ms 23712 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB n=5
2 Correct 13 ms 23764 KB n=100
3 Correct 11 ms 23764 KB n=100
4 Correct 12 ms 23788 KB n=100
5 Correct 11 ms 23764 KB n=100
6 Correct 11 ms 23764 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 13 ms 23764 KB n=100
9 Correct 13 ms 23764 KB n=100
10 Correct 13 ms 23856 KB n=100
11 Correct 13 ms 23804 KB n=100
12 Correct 12 ms 23764 KB n=100
13 Correct 11 ms 23764 KB n=100
14 Correct 11 ms 23764 KB n=100
15 Correct 11 ms 23720 KB n=100
16 Correct 11 ms 23764 KB n=100
17 Correct 12 ms 23764 KB n=100
18 Correct 11 ms 23764 KB n=100
19 Correct 13 ms 23764 KB n=100
20 Correct 14 ms 23724 KB n=100
21 Correct 11 ms 23728 KB n=100
22 Correct 12 ms 23800 KB n=100
23 Correct 11 ms 23804 KB n=100
24 Correct 11 ms 23764 KB n=100
25 Correct 11 ms 23764 KB n=100
26 Correct 11 ms 23816 KB n=12
27 Correct 13 ms 23712 KB n=100
28 Correct 14 ms 23892 KB n=500
29 Correct 12 ms 23848 KB n=500
30 Correct 12 ms 23892 KB n=500
31 Correct 14 ms 23932 KB n=500
32 Correct 12 ms 23908 KB n=500
33 Correct 12 ms 23892 KB n=500
34 Correct 13 ms 23892 KB n=500
35 Correct 12 ms 23864 KB n=500
36 Correct 11 ms 23892 KB n=500
37 Correct 12 ms 23912 KB n=500
38 Correct 11 ms 23928 KB n=500
39 Correct 12 ms 23884 KB n=500
40 Correct 14 ms 23840 KB n=500
41 Correct 13 ms 23860 KB n=500
42 Correct 12 ms 23876 KB n=500
43 Correct 12 ms 23892 KB n=500
44 Correct 12 ms 23892 KB n=500
45 Correct 12 ms 23892 KB n=500
46 Correct 12 ms 23892 KB n=500
47 Correct 12 ms 23832 KB n=500
48 Correct 14 ms 23892 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 13 ms 23928 KB n=500
51 Correct 12 ms 23936 KB n=500
52 Correct 12 ms 24036 KB n=500
53 Correct 13 ms 23892 KB n=500
54 Correct 12 ms 23892 KB n=500
55 Correct 11 ms 23892 KB n=278
56 Correct 12 ms 23856 KB n=500
57 Correct 14 ms 23892 KB n=500
58 Correct 12 ms 23892 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB n=5
2 Correct 13 ms 23764 KB n=100
3 Correct 11 ms 23764 KB n=100
4 Correct 12 ms 23788 KB n=100
5 Correct 11 ms 23764 KB n=100
6 Correct 11 ms 23764 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 13 ms 23764 KB n=100
9 Correct 13 ms 23764 KB n=100
10 Correct 13 ms 23856 KB n=100
11 Correct 13 ms 23804 KB n=100
12 Correct 12 ms 23764 KB n=100
13 Correct 11 ms 23764 KB n=100
14 Correct 11 ms 23764 KB n=100
15 Correct 11 ms 23720 KB n=100
16 Correct 11 ms 23764 KB n=100
17 Correct 12 ms 23764 KB n=100
18 Correct 11 ms 23764 KB n=100
19 Correct 13 ms 23764 KB n=100
20 Correct 14 ms 23724 KB n=100
21 Correct 11 ms 23728 KB n=100
22 Correct 12 ms 23800 KB n=100
23 Correct 11 ms 23804 KB n=100
24 Correct 11 ms 23764 KB n=100
25 Correct 11 ms 23764 KB n=100
26 Correct 11 ms 23816 KB n=12
27 Correct 13 ms 23712 KB n=100
28 Correct 14 ms 23892 KB n=500
29 Correct 12 ms 23848 KB n=500
30 Correct 12 ms 23892 KB n=500
31 Correct 14 ms 23932 KB n=500
32 Correct 12 ms 23908 KB n=500
33 Correct 12 ms 23892 KB n=500
34 Correct 13 ms 23892 KB n=500
35 Correct 12 ms 23864 KB n=500
36 Correct 11 ms 23892 KB n=500
37 Correct 12 ms 23912 KB n=500
38 Correct 11 ms 23928 KB n=500
39 Correct 12 ms 23884 KB n=500
40 Correct 14 ms 23840 KB n=500
41 Correct 13 ms 23860 KB n=500
42 Correct 12 ms 23876 KB n=500
43 Correct 12 ms 23892 KB n=500
44 Correct 12 ms 23892 KB n=500
45 Correct 12 ms 23892 KB n=500
46 Correct 12 ms 23892 KB n=500
47 Correct 12 ms 23832 KB n=500
48 Correct 14 ms 23892 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 13 ms 23928 KB n=500
51 Correct 12 ms 23936 KB n=500
52 Correct 12 ms 24036 KB n=500
53 Correct 13 ms 23892 KB n=500
54 Correct 12 ms 23892 KB n=500
55 Correct 11 ms 23892 KB n=278
56 Correct 12 ms 23856 KB n=500
57 Correct 14 ms 23892 KB n=500
58 Correct 12 ms 23892 KB n=500
59 Correct 17 ms 24208 KB n=2000
60 Correct 14 ms 24304 KB n=2000
61 Correct 15 ms 24260 KB n=2000
62 Correct 15 ms 24148 KB n=2000
63 Correct 15 ms 24272 KB n=2000
64 Correct 14 ms 24276 KB n=2000
65 Correct 19 ms 24148 KB n=2000
66 Correct 15 ms 24248 KB n=2000
67 Correct 14 ms 24120 KB n=2000
68 Correct 14 ms 24288 KB n=2000
69 Correct 13 ms 24180 KB n=2000
70 Correct 14 ms 24196 KB n=2000
71 Correct 13 ms 24148 KB n=2000
72 Correct 14 ms 24208 KB n=2000
73 Correct 14 ms 24152 KB n=2000
74 Correct 14 ms 24148 KB n=1844
75 Correct 13 ms 24148 KB n=2000
76 Correct 14 ms 24148 KB n=2000
77 Correct 15 ms 24148 KB n=2000
78 Correct 15 ms 24148 KB n=2000
79 Correct 15 ms 24192 KB n=2000
80 Correct 15 ms 24404 KB n=2000
81 Correct 15 ms 24276 KB n=2000
82 Correct 14 ms 24200 KB n=2000
83 Correct 14 ms 24276 KB n=2000
84 Correct 15 ms 24200 KB n=2000
85 Correct 16 ms 24276 KB n=2000
86 Correct 15 ms 24148 KB n=2000
87 Correct 15 ms 24140 KB n=2000
88 Correct 15 ms 24296 KB n=2000
89 Correct 14 ms 24292 KB n=2000
90 Correct 15 ms 24320 KB n=2000
91 Correct 13 ms 24148 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB n=5
2 Correct 13 ms 23764 KB n=100
3 Correct 11 ms 23764 KB n=100
4 Correct 12 ms 23788 KB n=100
5 Correct 11 ms 23764 KB n=100
6 Correct 11 ms 23764 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 13 ms 23764 KB n=100
9 Correct 13 ms 23764 KB n=100
10 Correct 13 ms 23856 KB n=100
11 Correct 13 ms 23804 KB n=100
12 Correct 12 ms 23764 KB n=100
13 Correct 11 ms 23764 KB n=100
14 Correct 11 ms 23764 KB n=100
15 Correct 11 ms 23720 KB n=100
16 Correct 11 ms 23764 KB n=100
17 Correct 12 ms 23764 KB n=100
18 Correct 11 ms 23764 KB n=100
19 Correct 13 ms 23764 KB n=100
20 Correct 14 ms 23724 KB n=100
21 Correct 11 ms 23728 KB n=100
22 Correct 12 ms 23800 KB n=100
23 Correct 11 ms 23804 KB n=100
24 Correct 11 ms 23764 KB n=100
25 Correct 11 ms 23764 KB n=100
26 Correct 11 ms 23816 KB n=12
27 Correct 13 ms 23712 KB n=100
28 Correct 14 ms 23892 KB n=500
29 Correct 12 ms 23848 KB n=500
30 Correct 12 ms 23892 KB n=500
31 Correct 14 ms 23932 KB n=500
32 Correct 12 ms 23908 KB n=500
33 Correct 12 ms 23892 KB n=500
34 Correct 13 ms 23892 KB n=500
35 Correct 12 ms 23864 KB n=500
36 Correct 11 ms 23892 KB n=500
37 Correct 12 ms 23912 KB n=500
38 Correct 11 ms 23928 KB n=500
39 Correct 12 ms 23884 KB n=500
40 Correct 14 ms 23840 KB n=500
41 Correct 13 ms 23860 KB n=500
42 Correct 12 ms 23876 KB n=500
43 Correct 12 ms 23892 KB n=500
44 Correct 12 ms 23892 KB n=500
45 Correct 12 ms 23892 KB n=500
46 Correct 12 ms 23892 KB n=500
47 Correct 12 ms 23832 KB n=500
48 Correct 14 ms 23892 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 13 ms 23928 KB n=500
51 Correct 12 ms 23936 KB n=500
52 Correct 12 ms 24036 KB n=500
53 Correct 13 ms 23892 KB n=500
54 Correct 12 ms 23892 KB n=500
55 Correct 11 ms 23892 KB n=278
56 Correct 12 ms 23856 KB n=500
57 Correct 14 ms 23892 KB n=500
58 Correct 12 ms 23892 KB n=500
59 Correct 17 ms 24208 KB n=2000
60 Correct 14 ms 24304 KB n=2000
61 Correct 15 ms 24260 KB n=2000
62 Correct 15 ms 24148 KB n=2000
63 Correct 15 ms 24272 KB n=2000
64 Correct 14 ms 24276 KB n=2000
65 Correct 19 ms 24148 KB n=2000
66 Correct 15 ms 24248 KB n=2000
67 Correct 14 ms 24120 KB n=2000
68 Correct 14 ms 24288 KB n=2000
69 Correct 13 ms 24180 KB n=2000
70 Correct 14 ms 24196 KB n=2000
71 Correct 13 ms 24148 KB n=2000
72 Correct 14 ms 24208 KB n=2000
73 Correct 14 ms 24152 KB n=2000
74 Correct 14 ms 24148 KB n=1844
75 Correct 13 ms 24148 KB n=2000
76 Correct 14 ms 24148 KB n=2000
77 Correct 15 ms 24148 KB n=2000
78 Correct 15 ms 24148 KB n=2000
79 Correct 15 ms 24192 KB n=2000
80 Correct 15 ms 24404 KB n=2000
81 Correct 15 ms 24276 KB n=2000
82 Correct 14 ms 24200 KB n=2000
83 Correct 14 ms 24276 KB n=2000
84 Correct 15 ms 24200 KB n=2000
85 Correct 16 ms 24276 KB n=2000
86 Correct 15 ms 24148 KB n=2000
87 Correct 15 ms 24140 KB n=2000
88 Correct 15 ms 24296 KB n=2000
89 Correct 14 ms 24292 KB n=2000
90 Correct 15 ms 24320 KB n=2000
91 Correct 13 ms 24148 KB n=2000
92 Correct 694 ms 66568 KB n=200000
93 Correct 1078 ms 79380 KB n=200000
94 Correct 1057 ms 83820 KB n=200000
95 Correct 730 ms 72880 KB n=200000
96 Correct 660 ms 72792 KB n=200000
97 Correct 1166 ms 78440 KB n=200000
98 Correct 724 ms 72804 KB n=200000
99 Correct 907 ms 73112 KB n=200000
100 Correct 709 ms 72876 KB n=200000
101 Correct 1058 ms 85504 KB n=200000
102 Correct 413 ms 73956 KB n=200000
103 Correct 462 ms 73964 KB n=200000
104 Correct 418 ms 73976 KB n=200000
105 Correct 426 ms 74336 KB n=200000
106 Correct 406 ms 74364 KB n=200000
107 Correct 431 ms 74376 KB n=200000
108 Correct 788 ms 72780 KB n=200000
109 Correct 825 ms 72916 KB n=200000
110 Correct 809 ms 72800 KB n=200000
111 Correct 692 ms 72240 KB n=200000
112 Correct 1012 ms 84112 KB n=200000
113 Correct 1131 ms 78176 KB n=200000
114 Correct 695 ms 72256 KB n=200000
115 Correct 1169 ms 75376 KB n=200000
116 Correct 648 ms 73012 KB n=200000
117 Correct 1120 ms 84740 KB n=200000
118 Correct 1259 ms 76704 KB n=200000
119 Correct 727 ms 72920 KB n=200000
120 Correct 1119 ms 84540 KB n=200000
121 Correct 1191 ms 84520 KB n=200000
122 Correct 1146 ms 84916 KB n=200000
123 Correct 584 ms 74184 KB n=200000
124 Correct 251 ms 38756 KB n=25264