oj.uz

Submission #607731

# Submission time Handle Problem Language Result Execution time Memory
607731 2022-07-27T02:06:38 Z abcvuitunggio Birthday gift (IZhO18_treearray) C++17
100 / 100
 965 ms 80424 KB 
#include <iostream>
#include <vector>
#include <set>
using namespace std;
int n,m,q,p[200001][20],t,l,r,k,st[200001],en[200001],id,a[200001],u,v;
vector <int> ke[200001];
set <int> s[200001],s2[200001];
void dfs(int u, int par){
    st[u]=++id;
    for (int v:ke[u])
        if (v!=par){
            p[v][0]=u;
            dfs(v,u);
        }
    en[u]=++id;
}
void prep(){
    for (int i=1;i<20;i++)
        for (int j=1;j<=n;j++)
            p[j][i]=p[p[j][i-1]][i-1];
}
bool isancestor(int i, int j){
    return (st[i]<=st[j]&&en[i]>=en[j]);
}
int lca(int i, int j){
    if (isancestor(i,j))
        return i;
    if (isancestor(j,i))
        return j;
    for (int k=19;k>=0;k--)
        if (p[i][k]&&!isancestor(p[i][k],j))
            i=p[i][k];
    return p[i][0];
}
int main(){
    ios_base::sync_with_stdio(NULL);cin.tie(nullptr);
    cin >> n >> m >> q;
    for (int i=1;i<n;i++){
        cin >> u >> v;
        ke[u].push_back(v);
        ke[v].push_back(u);
    }
    dfs(1,1);
    prep();
    for (int i=1;i<=m;i++){
        cin >> a[i];
        s[a[i]].insert(i);
        if (i>1)
            s2[lca(a[i-1],a[i])].insert(i-1);
    }
    while (q--){
        cin >> t >> l >> r;
        if (t==1){
            s[a[l]].erase(l);
            if (l<m)
                s2[lca(a[l],a[l+1])].erase(l);
            if (l>1)
                s2[lca(a[l-1],a[l])].erase(l-1);
            a[l]=r;
            s[a[l]].insert(l);
            if (l<m)
                s2[lca(a[l],a[l+1])].insert(l);
            if (l>1)
                s2[lca(a[l-1],a[l])].insert(l-1);
            continue;
        }
        cin >> k;
        if (!s[k].empty()&&(*--s[k].end())>=l){
            int x=*s[k].lower_bound(l);
            if (x<=r){
                cout << x << ' ' << x << '\n';
                continue;
            }
        }
        if (!s2[k].empty()&&(*--s2[k].end())>=l){
            int x=*s2[k].lower_bound(l);
            if (x<r){
                cout << x << ' ' << x+1 << '\n';
                continue;
            }
        }
        cout << "-1 -1\n";
    }
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23744 KB n=5
2 Correct 15 ms 23812 KB n=100
3 Correct 14 ms 23784 KB n=100
4 Correct 12 ms 23840 KB n=100
5 Correct 12 ms 23848 KB n=100
6 Correct 12 ms 23764 KB n=100
7 Correct 12 ms 23764 KB n=100
8 Correct 12 ms 23828 KB n=100
9 Correct 12 ms 23804 KB n=100
10 Correct 12 ms 23736 KB n=100
11 Correct 15 ms 23764 KB n=100
12 Correct 12 ms 23732 KB n=100
13 Correct 12 ms 23764 KB n=100
14 Correct 11 ms 23776 KB n=100
15 Correct 11 ms 23812 KB n=100
16 Correct 11 ms 23840 KB n=100
17 Correct 12 ms 23764 KB n=100
18 Correct 13 ms 23764 KB n=100
19 Correct 12 ms 23764 KB n=100
20 Correct 16 ms 23828 KB n=100
21 Correct 12 ms 23764 KB n=100
22 Correct 14 ms 23764 KB n=100
23 Correct 13 ms 23792 KB n=100
24 Correct 12 ms 23824 KB n=100
25 Correct 13 ms 23732 KB n=100
26 Correct 14 ms 23788 KB n=12
27 Correct 11 ms 23764 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23744 KB n=5
2 Correct 15 ms 23812 KB n=100
3 Correct 14 ms 23784 KB n=100
4 Correct 12 ms 23840 KB n=100
5 Correct 12 ms 23848 KB n=100
6 Correct 12 ms 23764 KB n=100
7 Correct 12 ms 23764 KB n=100
8 Correct 12 ms 23828 KB n=100
9 Correct 12 ms 23804 KB n=100
10 Correct 12 ms 23736 KB n=100
11 Correct 15 ms 23764 KB n=100
12 Correct 12 ms 23732 KB n=100
13 Correct 12 ms 23764 KB n=100
14 Correct 11 ms 23776 KB n=100
15 Correct 11 ms 23812 KB n=100
16 Correct 11 ms 23840 KB n=100
17 Correct 12 ms 23764 KB n=100
18 Correct 13 ms 23764 KB n=100
19 Correct 12 ms 23764 KB n=100
20 Correct 16 ms 23828 KB n=100
21 Correct 12 ms 23764 KB n=100
22 Correct 14 ms 23764 KB n=100
23 Correct 13 ms 23792 KB n=100
24 Correct 12 ms 23824 KB n=100
25 Correct 13 ms 23732 KB n=100
26 Correct 14 ms 23788 KB n=12
27 Correct 11 ms 23764 KB n=100
28 Correct 12 ms 23892 KB n=500
29 Correct 13 ms 23920 KB n=500
30 Correct 14 ms 23892 KB n=500
31 Correct 13 ms 23892 KB n=500
32 Correct 13 ms 23888 KB n=500
33 Correct 14 ms 23892 KB n=500
34 Correct 12 ms 23832 KB n=500
35 Correct 15 ms 23892 KB n=500
36 Correct 12 ms 23876 KB n=500
37 Correct 12 ms 23932 KB n=500
38 Correct 12 ms 23892 KB n=500
39 Correct 13 ms 23892 KB n=500
40 Correct 12 ms 23892 KB n=500
41 Correct 12 ms 23944 KB n=500
42 Correct 16 ms 23892 KB n=500
43 Correct 15 ms 23888 KB n=500
44 Correct 13 ms 23892 KB n=500
45 Correct 13 ms 23892 KB n=500
46 Correct 13 ms 23952 KB n=500
47 Correct 13 ms 23892 KB n=500
48 Correct 13 ms 23940 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 15 ms 23892 KB n=500
51 Correct 14 ms 23828 KB n=500
52 Correct 12 ms 23892 KB n=500
53 Correct 12 ms 23892 KB n=500
54 Correct 12 ms 23956 KB n=500
55 Correct 12 ms 23904 KB n=278
56 Correct 13 ms 23892 KB n=500
57 Correct 16 ms 23892 KB n=500
58 Correct 13 ms 23892 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23744 KB n=5
2 Correct 15 ms 23812 KB n=100
3 Correct 14 ms 23784 KB n=100
4 Correct 12 ms 23840 KB n=100
5 Correct 12 ms 23848 KB n=100
6 Correct 12 ms 23764 KB n=100
7 Correct 12 ms 23764 KB n=100
8 Correct 12 ms 23828 KB n=100
9 Correct 12 ms 23804 KB n=100
10 Correct 12 ms 23736 KB n=100
11 Correct 15 ms 23764 KB n=100
12 Correct 12 ms 23732 KB n=100
13 Correct 12 ms 23764 KB n=100
14 Correct 11 ms 23776 KB n=100
15 Correct 11 ms 23812 KB n=100
16 Correct 11 ms 23840 KB n=100
17 Correct 12 ms 23764 KB n=100
18 Correct 13 ms 23764 KB n=100
19 Correct 12 ms 23764 KB n=100
20 Correct 16 ms 23828 KB n=100
21 Correct 12 ms 23764 KB n=100
22 Correct 14 ms 23764 KB n=100
23 Correct 13 ms 23792 KB n=100
24 Correct 12 ms 23824 KB n=100
25 Correct 13 ms 23732 KB n=100
26 Correct 14 ms 23788 KB n=12
27 Correct 11 ms 23764 KB n=100
28 Correct 12 ms 23892 KB n=500
29 Correct 13 ms 23920 KB n=500
30 Correct 14 ms 23892 KB n=500
31 Correct 13 ms 23892 KB n=500
32 Correct 13 ms 23888 KB n=500
33 Correct 14 ms 23892 KB n=500
34 Correct 12 ms 23832 KB n=500
35 Correct 15 ms 23892 KB n=500
36 Correct 12 ms 23876 KB n=500
37 Correct 12 ms 23932 KB n=500
38 Correct 12 ms 23892 KB n=500
39 Correct 13 ms 23892 KB n=500
40 Correct 12 ms 23892 KB n=500
41 Correct 12 ms 23944 KB n=500
42 Correct 16 ms 23892 KB n=500
43 Correct 15 ms 23888 KB n=500
44 Correct 13 ms 23892 KB n=500
45 Correct 13 ms 23892 KB n=500
46 Correct 13 ms 23952 KB n=500
47 Correct 13 ms 23892 KB n=500
48 Correct 13 ms 23940 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 15 ms 23892 KB n=500
51 Correct 14 ms 23828 KB n=500
52 Correct 12 ms 23892 KB n=500
53 Correct 12 ms 23892 KB n=500
54 Correct 12 ms 23956 KB n=500
55 Correct 12 ms 23904 KB n=278
56 Correct 13 ms 23892 KB n=500
57 Correct 16 ms 23892 KB n=500
58 Correct 13 ms 23892 KB n=500
59 Correct 14 ms 24272 KB n=2000
60 Correct 13 ms 24276 KB n=2000
61 Correct 14 ms 24332 KB n=2000
62 Correct 16 ms 24404 KB n=2000
63 Correct 17 ms 24168 KB n=2000
64 Correct 15 ms 24276 KB n=2000
65 Correct 15 ms 24148 KB n=2000
66 Correct 14 ms 24276 KB n=2000
67 Correct 15 ms 24216 KB n=2000
68 Correct 14 ms 24276 KB n=2000
69 Correct 17 ms 24276 KB n=2000
70 Correct 14 ms 24276 KB n=2000
71 Correct 14 ms 24240 KB n=2000
72 Correct 13 ms 24148 KB n=2000
73 Correct 17 ms 24256 KB n=2000
74 Correct 15 ms 24148 KB n=1844
75 Correct 14 ms 24216 KB n=2000
76 Correct 15 ms 24220 KB n=2000
77 Correct 15 ms 24148 KB n=2000
78 Correct 15 ms 24148 KB n=2000
79 Correct 15 ms 24276 KB n=2000
80 Correct 13 ms 24276 KB n=2000
81 Correct 14 ms 24308 KB n=2000
82 Correct 15 ms 24204 KB n=2000
83 Correct 16 ms 24276 KB n=2000
84 Correct 16 ms 24276 KB n=2000
85 Correct 20 ms 24280 KB n=2000
86 Correct 14 ms 24276 KB n=2000
87 Correct 14 ms 24276 KB n=2000
88 Correct 14 ms 24276 KB n=2000
89 Correct 16 ms 24276 KB n=2000
90 Correct 14 ms 24276 KB n=2000
91 Correct 15 ms 24220 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23744 KB n=5
2 Correct 15 ms 23812 KB n=100
3 Correct 14 ms 23784 KB n=100
4 Correct 12 ms 23840 KB n=100
5 Correct 12 ms 23848 KB n=100
6 Correct 12 ms 23764 KB n=100
7 Correct 12 ms 23764 KB n=100
8 Correct 12 ms 23828 KB n=100
9 Correct 12 ms 23804 KB n=100
10 Correct 12 ms 23736 KB n=100
11 Correct 15 ms 23764 KB n=100
12 Correct 12 ms 23732 KB n=100
13 Correct 12 ms 23764 KB n=100
14 Correct 11 ms 23776 KB n=100
15 Correct 11 ms 23812 KB n=100
16 Correct 11 ms 23840 KB n=100
17 Correct 12 ms 23764 KB n=100
18 Correct 13 ms 23764 KB n=100
19 Correct 12 ms 23764 KB n=100
20 Correct 16 ms 23828 KB n=100
21 Correct 12 ms 23764 KB n=100
22 Correct 14 ms 23764 KB n=100
23 Correct 13 ms 23792 KB n=100
24 Correct 12 ms 23824 KB n=100
25 Correct 13 ms 23732 KB n=100
26 Correct 14 ms 23788 KB n=12
27 Correct 11 ms 23764 KB n=100
28 Correct 12 ms 23892 KB n=500
29 Correct 13 ms 23920 KB n=500
30 Correct 14 ms 23892 KB n=500
31 Correct 13 ms 23892 KB n=500
32 Correct 13 ms 23888 KB n=500
33 Correct 14 ms 23892 KB n=500
34 Correct 12 ms 23832 KB n=500
35 Correct 15 ms 23892 KB n=500
36 Correct 12 ms 23876 KB n=500
37 Correct 12 ms 23932 KB n=500
38 Correct 12 ms 23892 KB n=500
39 Correct 13 ms 23892 KB n=500
40 Correct 12 ms 23892 KB n=500
41 Correct 12 ms 23944 KB n=500
42 Correct 16 ms 23892 KB n=500
43 Correct 15 ms 23888 KB n=500
44 Correct 13 ms 23892 KB n=500
45 Correct 13 ms 23892 KB n=500
46 Correct 13 ms 23952 KB n=500
47 Correct 13 ms 23892 KB n=500
48 Correct 13 ms 23940 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 15 ms 23892 KB n=500
51 Correct 14 ms 23828 KB n=500
52 Correct 12 ms 23892 KB n=500
53 Correct 12 ms 23892 KB n=500
54 Correct 12 ms 23956 KB n=500
55 Correct 12 ms 23904 KB n=278
56 Correct 13 ms 23892 KB n=500
57 Correct 16 ms 23892 KB n=500
58 Correct 13 ms 23892 KB n=500
59 Correct 14 ms 24272 KB n=2000
60 Correct 13 ms 24276 KB n=2000
61 Correct 14 ms 24332 KB n=2000
62 Correct 16 ms 24404 KB n=2000
63 Correct 17 ms 24168 KB n=2000
64 Correct 15 ms 24276 KB n=2000
65 Correct 15 ms 24148 KB n=2000
66 Correct 14 ms 24276 KB n=2000
67 Correct 15 ms 24216 KB n=2000
68 Correct 14 ms 24276 KB n=2000
69 Correct 17 ms 24276 KB n=2000
70 Correct 14 ms 24276 KB n=2000
71 Correct 14 ms 24240 KB n=2000
72 Correct 13 ms 24148 KB n=2000
73 Correct 17 ms 24256 KB n=2000
74 Correct 15 ms 24148 KB n=1844
75 Correct 14 ms 24216 KB n=2000
76 Correct 15 ms 24220 KB n=2000
77 Correct 15 ms 24148 KB n=2000
78 Correct 15 ms 24148 KB n=2000
79 Correct 15 ms 24276 KB n=2000
80 Correct 13 ms 24276 KB n=2000
81 Correct 14 ms 24308 KB n=2000
82 Correct 15 ms 24204 KB n=2000
83 Correct 16 ms 24276 KB n=2000
84 Correct 16 ms 24276 KB n=2000
85 Correct 20 ms 24280 KB n=2000
86 Correct 14 ms 24276 KB n=2000
87 Correct 14 ms 24276 KB n=2000
88 Correct 14 ms 24276 KB n=2000
89 Correct 16 ms 24276 KB n=2000
90 Correct 14 ms 24276 KB n=2000
91 Correct 15 ms 24220 KB n=2000
92 Correct 693 ms 68832 KB n=200000
93 Correct 772 ms 74216 KB n=200000
94 Correct 534 ms 78552 KB n=200000
95 Correct 675 ms 68808 KB n=200000
96 Correct 607 ms 68796 KB n=200000
97 Correct 816 ms 72992 KB n=200000
98 Correct 602 ms 68756 KB n=200000
99 Correct 761 ms 68292 KB n=200000
100 Correct 637 ms 68704 KB n=200000
101 Correct 489 ms 80144 KB n=200000
102 Correct 390 ms 69680 KB n=200000
103 Correct 379 ms 69660 KB n=200000
104 Correct 388 ms 69620 KB n=200000
105 Correct 395 ms 69520 KB n=200000
106 Correct 431 ms 69384 KB n=200000
107 Correct 386 ms 69300 KB n=200000
108 Correct 706 ms 68256 KB n=200000
109 Correct 735 ms 68496 KB n=200000
110 Correct 744 ms 68380 KB n=200000
111 Correct 632 ms 68580 KB n=200000
112 Correct 542 ms 78864 KB n=200000
113 Correct 780 ms 72800 KB n=200000
114 Correct 609 ms 68680 KB n=200000
115 Correct 965 ms 70220 KB n=200000
116 Correct 623 ms 68444 KB n=200000
117 Correct 525 ms 79540 KB n=200000
118 Correct 869 ms 71272 KB n=200000
119 Correct 592 ms 68356 KB n=200000
120 Correct 445 ms 80092 KB n=200000
121 Correct 416 ms 79948 KB n=200000
122 Correct 431 ms 80424 KB n=200000
123 Correct 404 ms 69020 KB n=200000
124 Correct 148 ms 37324 KB n=25264