oj.uz

Submission #893141

# Submission time Handle Problem Language Result Execution time Memory
893141 2023-12-26T14:54:09 Z Andrey Birthday gift (IZhO18_treearray) C++14
100 / 100
 742 ms 85460 KB 
#include <bits/stdc++.h>
using namespace std;

vector<int> haha[200001];
int bruh[200001][18];
vector<int> dep(200001);

long long lca(long long a, long long b) {
    if(dep[a] < dep[b]) {
        swap(a,b);
    }
    long long c = dep[a]-dep[b];
    for(long long i = 17; i >= 0; i--) {
        if((1 << i)&c) {
            a = bruh[a][i];
        }
    }
    for(long long i = 17; i >= 0; i--) {
        if(bruh[a][i] != -1 && bruh[a][i] != bruh[b][i]) {
            a = bruh[a][i];
            b = bruh[b][i];
        }
    }
    if(a == b) {
        return a;
    }
    else {
        return bruh[a][0];
    }
}

void dfs(long long a, long long t, long long d) {
    bruh[a][0] = t;
    dep[a] = d;
    for(long long i = 0; i < haha[a].size(); i++) {
        if(haha[a][i] != t) {
            dfs(haha[a][i],a,d+1);
        }
    }
}

multiset<int> wow[200001];
multiset<int> yay[200001];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int n,m,q,a,b,z,l,r;
    cin >> n >> m >> q;
    for(int i = 0; i < n-1; i++) {
        cin >> a >> b;
        haha[a].push_back(b);
        haha[b].push_back(a);
    }
    dfs(1,-1,0);
    for(long long i = 1; i < 18; i++) {
        for(long long j = 1; j <= n; j++) {
            if(bruh[j][i-1] == -1) {
                bruh[j][i] = -1;
            }
            else {
                bruh[j][i] = bruh[bruh[j][i-1]][i-1];
            }
        }
    }
    vector<int> wut(m+1);
    for(int i = 1; i <= m; i++) {
        cin >> wut[i];
        yay[wut[i]].insert(i);
    }
    for(int i = 1; i < m; i++) {
        wow[lca(wut[i],wut[i+1])].insert(i);
    }
    for(int i = 0; i < q; i++) {
        cin >> z;
        if(z == 1) {
            cin >> a >> b;
            yay[wut[a]].erase(a);
            yay[b].insert(a);
            if(a > 1) {
                wow[lca(wut[a],wut[a-1])].erase(a-1);
                wow[lca(b,wut[a-1])].insert(a-1);
            }
            if(a < m) {
                wow[lca(wut[a],wut[a+1])].erase(a);
                wow[lca(b,wut[a+1])].insert(a);
            }
            wut[a] = b;
        }
        else {
            cin >> l >> r >> a;
            auto d = yay[a].lower_bound(l);
            if(yay[a].empty() || d == yay[a].end() || (*d) > r) {
                auto e = wow[a].lower_bound(l);
                if(wow[a].empty() || e == wow[a].end() || (*e) >= r) {
                    cout << -1 << " " << -1 << "\n";
                }
                else {
                    cout << (*e) << " " << (*e)+1 << "\n";
                }
            }
            else {
                cout << (*d) << " " << (*d) << "\n";
            }
        }
    }
    return 0;
}

Compilation message

treearray.cpp: In function 'void dfs(long long int, long long int, long long int)':
treearray.cpp:35:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for(long long i = 0; i < haha[a].size(); i++) {
      |                          ~~^~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 28508 KB n=5
2 Correct 7 ms 28508 KB n=100
3 Correct 6 ms 28528 KB n=100
4 Correct 5 ms 28508 KB n=100
5 Correct 6 ms 28508 KB n=100
6 Correct 6 ms 28504 KB n=100
7 Correct 6 ms 28508 KB n=100
8 Correct 6 ms 28504 KB n=100
9 Correct 5 ms 28504 KB n=100
10 Correct 5 ms 28508 KB n=100
11 Correct 6 ms 28508 KB n=100
12 Correct 6 ms 28504 KB n=100
13 Correct 8 ms 28508 KB n=100
14 Correct 7 ms 28764 KB n=100
15 Correct 6 ms 28508 KB n=100
16 Correct 6 ms 28508 KB n=100
17 Correct 6 ms 28504 KB n=100
18 Correct 6 ms 28508 KB n=100
19 Correct 6 ms 28508 KB n=100
20 Correct 6 ms 28508 KB n=100
21 Correct 6 ms 28504 KB n=100
22 Correct 6 ms 28508 KB n=100
23 Correct 6 ms 28508 KB n=100
24 Correct 6 ms 28504 KB n=100
25 Correct 6 ms 28508 KB n=100
26 Correct 6 ms 28568 KB n=12
27 Correct 6 ms 28508 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 28508 KB n=5
2 Correct 7 ms 28508 KB n=100
3 Correct 6 ms 28528 KB n=100
4 Correct 5 ms 28508 KB n=100
5 Correct 6 ms 28508 KB n=100
6 Correct 6 ms 28504 KB n=100
7 Correct 6 ms 28508 KB n=100
8 Correct 6 ms 28504 KB n=100
9 Correct 5 ms 28504 KB n=100
10 Correct 5 ms 28508 KB n=100
11 Correct 6 ms 28508 KB n=100
12 Correct 6 ms 28504 KB n=100
13 Correct 8 ms 28508 KB n=100
14 Correct 7 ms 28764 KB n=100
15 Correct 6 ms 28508 KB n=100
16 Correct 6 ms 28508 KB n=100
17 Correct 6 ms 28504 KB n=100
18 Correct 6 ms 28508 KB n=100
19 Correct 6 ms 28508 KB n=100
20 Correct 6 ms 28508 KB n=100
21 Correct 6 ms 28504 KB n=100
22 Correct 6 ms 28508 KB n=100
23 Correct 6 ms 28508 KB n=100
24 Correct 6 ms 28504 KB n=100
25 Correct 6 ms 28508 KB n=100
26 Correct 6 ms 28568 KB n=12
27 Correct 6 ms 28508 KB n=100
28 Correct 6 ms 28508 KB n=500
29 Correct 6 ms 28504 KB n=500
30 Correct 6 ms 28584 KB n=500
31 Correct 6 ms 28508 KB n=500
32 Correct 6 ms 28504 KB n=500
33 Correct 6 ms 28508 KB n=500
34 Correct 6 ms 28504 KB n=500
35 Correct 6 ms 28508 KB n=500
36 Correct 6 ms 28508 KB n=500
37 Correct 6 ms 28508 KB n=500
38 Correct 7 ms 28508 KB n=500
39 Correct 7 ms 28504 KB n=500
40 Correct 6 ms 28508 KB n=500
41 Correct 6 ms 28504 KB n=500
42 Correct 6 ms 28508 KB n=500
43 Correct 6 ms 28508 KB n=500
44 Correct 6 ms 28504 KB n=500
45 Correct 6 ms 28508 KB n=500
46 Correct 6 ms 28508 KB n=500
47 Correct 6 ms 28508 KB n=500
48 Correct 6 ms 28508 KB n=500
49 Correct 6 ms 28508 KB n=500
50 Correct 6 ms 28508 KB n=500
51 Correct 6 ms 28508 KB n=500
52 Correct 6 ms 28508 KB n=500
53 Correct 6 ms 28508 KB n=500
54 Correct 7 ms 28508 KB n=500
55 Correct 6 ms 28504 KB n=278
56 Correct 6 ms 28508 KB n=500
57 Correct 6 ms 28504 KB n=500
58 Correct 6 ms 28504 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 28508 KB n=5
2 Correct 7 ms 28508 KB n=100
3 Correct 6 ms 28528 KB n=100
4 Correct 5 ms 28508 KB n=100
5 Correct 6 ms 28508 KB n=100
6 Correct 6 ms 28504 KB n=100
7 Correct 6 ms 28508 KB n=100
8 Correct 6 ms 28504 KB n=100
9 Correct 5 ms 28504 KB n=100
10 Correct 5 ms 28508 KB n=100
11 Correct 6 ms 28508 KB n=100
12 Correct 6 ms 28504 KB n=100
13 Correct 8 ms 28508 KB n=100
14 Correct 7 ms 28764 KB n=100
15 Correct 6 ms 28508 KB n=100
16 Correct 6 ms 28508 KB n=100
17 Correct 6 ms 28504 KB n=100
18 Correct 6 ms 28508 KB n=100
19 Correct 6 ms 28508 KB n=100
20 Correct 6 ms 28508 KB n=100
21 Correct 6 ms 28504 KB n=100
22 Correct 6 ms 28508 KB n=100
23 Correct 6 ms 28508 KB n=100
24 Correct 6 ms 28504 KB n=100
25 Correct 6 ms 28508 KB n=100
26 Correct 6 ms 28568 KB n=12
27 Correct 6 ms 28508 KB n=100
28 Correct 6 ms 28508 KB n=500
29 Correct 6 ms 28504 KB n=500
30 Correct 6 ms 28584 KB n=500
31 Correct 6 ms 28508 KB n=500
32 Correct 6 ms 28504 KB n=500
33 Correct 6 ms 28508 KB n=500
34 Correct 6 ms 28504 KB n=500
35 Correct 6 ms 28508 KB n=500
36 Correct 6 ms 28508 KB n=500
37 Correct 6 ms 28508 KB n=500
38 Correct 7 ms 28508 KB n=500
39 Correct 7 ms 28504 KB n=500
40 Correct 6 ms 28508 KB n=500
41 Correct 6 ms 28504 KB n=500
42 Correct 6 ms 28508 KB n=500
43 Correct 6 ms 28508 KB n=500
44 Correct 6 ms 28504 KB n=500
45 Correct 6 ms 28508 KB n=500
46 Correct 6 ms 28508 KB n=500
47 Correct 6 ms 28508 KB n=500
48 Correct 6 ms 28508 KB n=500
49 Correct 6 ms 28508 KB n=500
50 Correct 6 ms 28508 KB n=500
51 Correct 6 ms 28508 KB n=500
52 Correct 6 ms 28508 KB n=500
53 Correct 6 ms 28508 KB n=500
54 Correct 7 ms 28508 KB n=500
55 Correct 6 ms 28504 KB n=278
56 Correct 6 ms 28508 KB n=500
57 Correct 6 ms 28504 KB n=500
58 Correct 6 ms 28504 KB n=500
59 Correct 8 ms 28764 KB n=2000
60 Correct 8 ms 28764 KB n=2000
61 Correct 8 ms 28764 KB n=2000
62 Correct 10 ms 28760 KB n=2000
63 Correct 10 ms 28788 KB n=2000
64 Correct 10 ms 28764 KB n=2000
65 Correct 8 ms 28760 KB n=2000
66 Correct 8 ms 28760 KB n=2000
67 Correct 9 ms 28764 KB n=2000
68 Correct 8 ms 28764 KB n=2000
69 Correct 7 ms 28676 KB n=2000
70 Correct 7 ms 28764 KB n=2000
71 Correct 8 ms 28764 KB n=2000
72 Correct 7 ms 28764 KB n=2000
73 Correct 8 ms 28764 KB n=2000
74 Correct 7 ms 28760 KB n=1844
75 Correct 8 ms 28764 KB n=2000
76 Correct 8 ms 28964 KB n=2000
77 Correct 9 ms 29016 KB n=2000
78 Correct 8 ms 28764 KB n=2000
79 Correct 8 ms 28712 KB n=2000
80 Correct 8 ms 28760 KB n=2000
81 Correct 8 ms 28764 KB n=2000
82 Correct 8 ms 28764 KB n=2000
83 Correct 8 ms 28764 KB n=2000
84 Correct 7 ms 28764 KB n=2000
85 Correct 8 ms 28764 KB n=2000
86 Correct 8 ms 28864 KB n=2000
87 Correct 8 ms 28760 KB n=2000
88 Correct 8 ms 28764 KB n=2000
89 Correct 8 ms 28760 KB n=2000
90 Correct 8 ms 28764 KB n=2000
91 Correct 8 ms 28764 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 28508 KB n=5
2 Correct 7 ms 28508 KB n=100
3 Correct 6 ms 28528 KB n=100
4 Correct 5 ms 28508 KB n=100
5 Correct 6 ms 28508 KB n=100
6 Correct 6 ms 28504 KB n=100
7 Correct 6 ms 28508 KB n=100
8 Correct 6 ms 28504 KB n=100
9 Correct 5 ms 28504 KB n=100
10 Correct 5 ms 28508 KB n=100
11 Correct 6 ms 28508 KB n=100
12 Correct 6 ms 28504 KB n=100
13 Correct 8 ms 28508 KB n=100
14 Correct 7 ms 28764 KB n=100
15 Correct 6 ms 28508 KB n=100
16 Correct 6 ms 28508 KB n=100
17 Correct 6 ms 28504 KB n=100
18 Correct 6 ms 28508 KB n=100
19 Correct 6 ms 28508 KB n=100
20 Correct 6 ms 28508 KB n=100
21 Correct 6 ms 28504 KB n=100
22 Correct 6 ms 28508 KB n=100
23 Correct 6 ms 28508 KB n=100
24 Correct 6 ms 28504 KB n=100
25 Correct 6 ms 28508 KB n=100
26 Correct 6 ms 28568 KB n=12
27 Correct 6 ms 28508 KB n=100
28 Correct 6 ms 28508 KB n=500
29 Correct 6 ms 28504 KB n=500
30 Correct 6 ms 28584 KB n=500
31 Correct 6 ms 28508 KB n=500
32 Correct 6 ms 28504 KB n=500
33 Correct 6 ms 28508 KB n=500
34 Correct 6 ms 28504 KB n=500
35 Correct 6 ms 28508 KB n=500
36 Correct 6 ms 28508 KB n=500
37 Correct 6 ms 28508 KB n=500
38 Correct 7 ms 28508 KB n=500
39 Correct 7 ms 28504 KB n=500
40 Correct 6 ms 28508 KB n=500
41 Correct 6 ms 28504 KB n=500
42 Correct 6 ms 28508 KB n=500
43 Correct 6 ms 28508 KB n=500
44 Correct 6 ms 28504 KB n=500
45 Correct 6 ms 28508 KB n=500
46 Correct 6 ms 28508 KB n=500
47 Correct 6 ms 28508 KB n=500
48 Correct 6 ms 28508 KB n=500
49 Correct 6 ms 28508 KB n=500
50 Correct 6 ms 28508 KB n=500
51 Correct 6 ms 28508 KB n=500
52 Correct 6 ms 28508 KB n=500
53 Correct 6 ms 28508 KB n=500
54 Correct 7 ms 28508 KB n=500
55 Correct 6 ms 28504 KB n=278
56 Correct 6 ms 28508 KB n=500
57 Correct 6 ms 28504 KB n=500
58 Correct 6 ms 28504 KB n=500
59 Correct 8 ms 28764 KB n=2000
60 Correct 8 ms 28764 KB n=2000
61 Correct 8 ms 28764 KB n=2000
62 Correct 10 ms 28760 KB n=2000
63 Correct 10 ms 28788 KB n=2000
64 Correct 10 ms 28764 KB n=2000
65 Correct 8 ms 28760 KB n=2000
66 Correct 8 ms 28760 KB n=2000
67 Correct 9 ms 28764 KB n=2000
68 Correct 8 ms 28764 KB n=2000
69 Correct 7 ms 28676 KB n=2000
70 Correct 7 ms 28764 KB n=2000
71 Correct 8 ms 28764 KB n=2000
72 Correct 7 ms 28764 KB n=2000
73 Correct 8 ms 28764 KB n=2000
74 Correct 7 ms 28760 KB n=1844
75 Correct 8 ms 28764 KB n=2000
76 Correct 8 ms 28964 KB n=2000
77 Correct 9 ms 29016 KB n=2000
78 Correct 8 ms 28764 KB n=2000
79 Correct 8 ms 28712 KB n=2000
80 Correct 8 ms 28760 KB n=2000
81 Correct 8 ms 28764 KB n=2000
82 Correct 8 ms 28764 KB n=2000
83 Correct 8 ms 28764 KB n=2000
84 Correct 7 ms 28764 KB n=2000
85 Correct 8 ms 28764 KB n=2000
86 Correct 8 ms 28864 KB n=2000
87 Correct 8 ms 28760 KB n=2000
88 Correct 8 ms 28764 KB n=2000
89 Correct 8 ms 28760 KB n=2000
90 Correct 8 ms 28764 KB n=2000
91 Correct 8 ms 28764 KB n=2000
92 Correct 484 ms 72932 KB n=200000
93 Correct 691 ms 79648 KB n=200000
94 Correct 659 ms 84052 KB n=200000
95 Correct 413 ms 72900 KB n=200000
96 Correct 406 ms 73160 KB n=200000
97 Correct 695 ms 78164 KB n=200000
98 Correct 427 ms 72752 KB n=200000
99 Correct 553 ms 73044 KB n=200000
100 Correct 440 ms 72856 KB n=200000
101 Correct 694 ms 85460 KB n=200000
102 Correct 267 ms 73980 KB n=200000
103 Correct 247 ms 74064 KB n=200000
104 Correct 274 ms 74104 KB n=200000
105 Correct 256 ms 74324 KB n=200000
106 Correct 311 ms 74328 KB n=200000
107 Correct 302 ms 74332 KB n=200000
108 Correct 557 ms 72820 KB n=200000
109 Correct 528 ms 73044 KB n=200000
110 Correct 580 ms 73116 KB n=200000
111 Correct 524 ms 72372 KB n=200000
112 Correct 737 ms 84476 KB n=200000
113 Correct 742 ms 78188 KB n=200000
114 Correct 503 ms 72428 KB n=200000
115 Correct 735 ms 75784 KB n=200000
116 Correct 429 ms 73100 KB n=200000
117 Correct 723 ms 84820 KB n=200000
118 Correct 710 ms 76820 KB n=200000
119 Correct 454 ms 73056 KB n=200000
120 Correct 670 ms 84712 KB n=200000
121 Correct 662 ms 84496 KB n=200000
122 Correct 612 ms 84912 KB n=200000
123 Correct 277 ms 74496 KB n=200000
124 Correct 141 ms 41552 KB n=25264