oj.uz

Submission #701238

# Submission time Handle Problem Language Result Execution time Memory
701238 2023-02-20T15:28:41 Z vjudge1 Birthday gift (IZhO18_treearray) C++17
100 / 100
 1130 ms 92212 KB 
#include<bits/stdc++.h>
#define TASKNAME "codeforce"
#define pb push_back
#define pli pair<int,int>
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
using namespace std;
using ll=long long;
const ll maxN=2e5+10;
const ll inf=1e18;
const ll mod=1e9+7;
ll n,m,q;
vector<ll> g[maxN];
ll P[maxN][19],h[maxN];
void dfs(ll u=1,ll p=1)
{
    P[u][0]=p;
    for(int i=1;i<=18;i++) P[u][i]=P[P[u][i-1]][i-1];
    for(int v:g[u])
    {
        if(v!=p)
        {
            h[v]=h[u]+1;
            dfs(v,u);
        }
    }
}
ll a[maxN];
set<int> s[maxN];
ll lca(ll u,ll v)
{
    if(h[u]<h[v]) swap(u,v);
    for(int i=18;i>=0;i--) if(h[u]-(1<<i)>=h[v]) u=P[u][i];
    if(u==v) return u;
    for(int i=18;i>=0;i--) if(P[u][i]!=P[v][i]) u=P[u][i],v=P[v][i];
    return P[u][0];
}
set<int> ss[maxN];
void solve()
{
    cin >> n >> m >> q;
    for(int i=1;i<n;i++)
    {
        ll u,v;
        cin >> u >> v ;
        g[u].pb(v);
        g[v].pb(u);
    }
    dfs();
    for(int i=1;i<=m;i++)
    {
        cin >> a[i];
        if(i>1)
        {
            s[lca(a[i],a[i-1])].insert(i);
        }
        ss[a[i]].insert(i);
    }
    for(int tt=1;tt<=q;tt++)
    {
        ll t;
        cin >> t;
        if(t==1)
        {
            ll i,val;
            cin >> i >> val;
            ss[a[i]].erase(i);
            ss[val].insert(i);
            if(i>1)
            {
                s[lca(a[i],a[i-1])].erase(i);
                s[lca(val,a[i-1])].insert(i);
            }
            if(i<m)
            {
                s[lca(a[i],a[i+1])].erase(i+1);
                s[lca(val,a[i+1])].insert(i+1);
            }
            a[i]=val;
        }
        else
        {
            ll l,r,v;
            cin >> l >> r >> v;
            auto cc=s[v].upper_bound(l);
            if(cc!=s[v].end()&&*cc<=r)
            {
                cout << *cc-1<<' '<<*cc<<'\n';
            }
            else
            {
                cc=ss[v].lower_bound(l);
                if(cc!=ss[v].end()&&*cc<=r)
                {
                    cout << *cc<<' '<<*cc<<'\n';
                }
                else cout << -1 <<' '<<-1<<'\n';
            }
        }
    }
}
int main()
{
    fastio
    //freopen(TASKNAME".INP","r",stdin);
    //freopen(TASKNAME".OUT","w",stdout);
    solve();
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB n=5
2 Correct 11 ms 23764 KB n=100
3 Correct 11 ms 23852 KB n=100
4 Correct 11 ms 23840 KB n=100
5 Correct 11 ms 23764 KB n=100
6 Correct 11 ms 23848 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 11 ms 23764 KB n=100
9 Correct 11 ms 23764 KB n=100
10 Correct 12 ms 23732 KB n=100
11 Correct 11 ms 23832 KB n=100
12 Correct 11 ms 23736 KB n=100
13 Correct 11 ms 23764 KB n=100
14 Correct 12 ms 23840 KB n=100
15 Correct 11 ms 23764 KB n=100
16 Correct 12 ms 23764 KB n=100
17 Correct 12 ms 23756 KB n=100
18 Correct 12 ms 23780 KB n=100
19 Correct 11 ms 23764 KB n=100
20 Correct 11 ms 23852 KB n=100
21 Correct 11 ms 23764 KB n=100
22 Correct 12 ms 23752 KB n=100
23 Correct 12 ms 23808 KB n=100
24 Correct 14 ms 23828 KB n=100
25 Correct 11 ms 23764 KB n=100
26 Correct 11 ms 23764 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 11 ms 23764 KB n=5
2 Correct 11 ms 23764 KB n=100
3 Correct 11 ms 23852 KB n=100
4 Correct 11 ms 23840 KB n=100
5 Correct 11 ms 23764 KB n=100
6 Correct 11 ms 23848 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 11 ms 23764 KB n=100
9 Correct 11 ms 23764 KB n=100
10 Correct 12 ms 23732 KB n=100
11 Correct 11 ms 23832 KB n=100
12 Correct 11 ms 23736 KB n=100
13 Correct 11 ms 23764 KB n=100
14 Correct 12 ms 23840 KB n=100
15 Correct 11 ms 23764 KB n=100
16 Correct 12 ms 23764 KB n=100
17 Correct 12 ms 23756 KB n=100
18 Correct 12 ms 23780 KB n=100
19 Correct 11 ms 23764 KB n=100
20 Correct 11 ms 23852 KB n=100
21 Correct 11 ms 23764 KB n=100
22 Correct 12 ms 23752 KB n=100
23 Correct 12 ms 23808 KB n=100
24 Correct 14 ms 23828 KB n=100
25 Correct 11 ms 23764 KB n=100
26 Correct 11 ms 23764 KB n=12
27 Correct 11 ms 23764 KB n=100
28 Correct 12 ms 23948 KB n=500
29 Correct 13 ms 23892 KB n=500
30 Correct 12 ms 23892 KB n=500
31 Correct 12 ms 23892 KB n=500
32 Correct 13 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 23892 KB n=500
36 Correct 12 ms 23892 KB n=500
37 Correct 12 ms 23980 KB n=500
38 Correct 13 ms 23880 KB n=500
39 Correct 12 ms 23892 KB n=500
40 Correct 12 ms 23892 KB n=500
41 Correct 12 ms 23892 KB n=500
42 Correct 12 ms 23892 KB n=500
43 Correct 12 ms 23892 KB n=500
44 Correct 12 ms 23968 KB n=500
45 Correct 14 ms 23892 KB n=500
46 Correct 12 ms 23892 KB n=500
47 Correct 12 ms 23892 KB n=500
48 Correct 11 ms 23892 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 14 ms 23916 KB n=500
51 Correct 12 ms 23892 KB n=500
52 Correct 12 ms 23952 KB n=500
53 Correct 12 ms 23892 KB n=500
54 Correct 12 ms 23988 KB n=500
55 Correct 12 ms 23892 KB n=278
56 Correct 12 ms 23892 KB n=500
57 Correct 12 ms 24020 KB n=500
58 Correct 12 ms 23868 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 11 ms 23764 KB n=100
3 Correct 11 ms 23852 KB n=100
4 Correct 11 ms 23840 KB n=100
5 Correct 11 ms 23764 KB n=100
6 Correct 11 ms 23848 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 11 ms 23764 KB n=100
9 Correct 11 ms 23764 KB n=100
10 Correct 12 ms 23732 KB n=100
11 Correct 11 ms 23832 KB n=100
12 Correct 11 ms 23736 KB n=100
13 Correct 11 ms 23764 KB n=100
14 Correct 12 ms 23840 KB n=100
15 Correct 11 ms 23764 KB n=100
16 Correct 12 ms 23764 KB n=100
17 Correct 12 ms 23756 KB n=100
18 Correct 12 ms 23780 KB n=100
19 Correct 11 ms 23764 KB n=100
20 Correct 11 ms 23852 KB n=100
21 Correct 11 ms 23764 KB n=100
22 Correct 12 ms 23752 KB n=100
23 Correct 12 ms 23808 KB n=100
24 Correct 14 ms 23828 KB n=100
25 Correct 11 ms 23764 KB n=100
26 Correct 11 ms 23764 KB n=12
27 Correct 11 ms 23764 KB n=100
28 Correct 12 ms 23948 KB n=500
29 Correct 13 ms 23892 KB n=500
30 Correct 12 ms 23892 KB n=500
31 Correct 12 ms 23892 KB n=500
32 Correct 13 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 23892 KB n=500
36 Correct 12 ms 23892 KB n=500
37 Correct 12 ms 23980 KB n=500
38 Correct 13 ms 23880 KB n=500
39 Correct 12 ms 23892 KB n=500
40 Correct 12 ms 23892 KB n=500
41 Correct 12 ms 23892 KB n=500
42 Correct 12 ms 23892 KB n=500
43 Correct 12 ms 23892 KB n=500
44 Correct 12 ms 23968 KB n=500
45 Correct 14 ms 23892 KB n=500
46 Correct 12 ms 23892 KB n=500
47 Correct 12 ms 23892 KB n=500
48 Correct 11 ms 23892 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 14 ms 23916 KB n=500
51 Correct 12 ms 23892 KB n=500
52 Correct 12 ms 23952 KB n=500
53 Correct 12 ms 23892 KB n=500
54 Correct 12 ms 23988 KB n=500
55 Correct 12 ms 23892 KB n=278
56 Correct 12 ms 23892 KB n=500
57 Correct 12 ms 24020 KB n=500
58 Correct 12 ms 23868 KB n=500
59 Correct 14 ms 24404 KB n=2000
60 Correct 14 ms 24444 KB n=2000
61 Correct 14 ms 24372 KB n=2000
62 Correct 15 ms 24404 KB n=2000
63 Correct 14 ms 24392 KB n=2000
64 Correct 14 ms 24456 KB n=2000
65 Correct 16 ms 24384 KB n=2000
66 Correct 14 ms 24404 KB n=2000
67 Correct 17 ms 24416 KB n=2000
68 Correct 16 ms 24456 KB n=2000
69 Correct 14 ms 24392 KB n=2000
70 Correct 16 ms 24376 KB n=2000
71 Correct 13 ms 24408 KB n=2000
72 Correct 14 ms 24404 KB n=2000
73 Correct 15 ms 24404 KB n=2000
74 Correct 14 ms 24276 KB n=1844
75 Correct 13 ms 24336 KB n=2000
76 Correct 16 ms 24428 KB n=2000
77 Correct 16 ms 24404 KB n=2000
78 Correct 14 ms 24404 KB n=2000
79 Correct 14 ms 24380 KB n=2000
80 Correct 14 ms 24476 KB n=2000
81 Correct 14 ms 24404 KB n=2000
82 Correct 16 ms 24404 KB n=2000
83 Correct 13 ms 24404 KB n=2000
84 Correct 15 ms 24532 KB n=2000
85 Correct 14 ms 24416 KB n=2000
86 Correct 14 ms 24404 KB n=2000
87 Correct 14 ms 24404 KB n=2000
88 Correct 13 ms 24404 KB n=2000
89 Correct 14 ms 24400 KB n=2000
90 Correct 14 ms 24404 KB n=2000
91 Correct 14 ms 24344 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 11 ms 23764 KB n=100
3 Correct 11 ms 23852 KB n=100
4 Correct 11 ms 23840 KB n=100
5 Correct 11 ms 23764 KB n=100
6 Correct 11 ms 23848 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 11 ms 23764 KB n=100
9 Correct 11 ms 23764 KB n=100
10 Correct 12 ms 23732 KB n=100
11 Correct 11 ms 23832 KB n=100
12 Correct 11 ms 23736 KB n=100
13 Correct 11 ms 23764 KB n=100
14 Correct 12 ms 23840 KB n=100
15 Correct 11 ms 23764 KB n=100
16 Correct 12 ms 23764 KB n=100
17 Correct 12 ms 23756 KB n=100
18 Correct 12 ms 23780 KB n=100
19 Correct 11 ms 23764 KB n=100
20 Correct 11 ms 23852 KB n=100
21 Correct 11 ms 23764 KB n=100
22 Correct 12 ms 23752 KB n=100
23 Correct 12 ms 23808 KB n=100
24 Correct 14 ms 23828 KB n=100
25 Correct 11 ms 23764 KB n=100
26 Correct 11 ms 23764 KB n=12
27 Correct 11 ms 23764 KB n=100
28 Correct 12 ms 23948 KB n=500
29 Correct 13 ms 23892 KB n=500
30 Correct 12 ms 23892 KB n=500
31 Correct 12 ms 23892 KB n=500
32 Correct 13 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 23892 KB n=500
36 Correct 12 ms 23892 KB n=500
37 Correct 12 ms 23980 KB n=500
38 Correct 13 ms 23880 KB n=500
39 Correct 12 ms 23892 KB n=500
40 Correct 12 ms 23892 KB n=500
41 Correct 12 ms 23892 KB n=500
42 Correct 12 ms 23892 KB n=500
43 Correct 12 ms 23892 KB n=500
44 Correct 12 ms 23968 KB n=500
45 Correct 14 ms 23892 KB n=500
46 Correct 12 ms 23892 KB n=500
47 Correct 12 ms 23892 KB n=500
48 Correct 11 ms 23892 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 14 ms 23916 KB n=500
51 Correct 12 ms 23892 KB n=500
52 Correct 12 ms 23952 KB n=500
53 Correct 12 ms 23892 KB n=500
54 Correct 12 ms 23988 KB n=500
55 Correct 12 ms 23892 KB n=278
56 Correct 12 ms 23892 KB n=500
57 Correct 12 ms 24020 KB n=500
58 Correct 12 ms 23868 KB n=500
59 Correct 14 ms 24404 KB n=2000
60 Correct 14 ms 24444 KB n=2000
61 Correct 14 ms 24372 KB n=2000
62 Correct 15 ms 24404 KB n=2000
63 Correct 14 ms 24392 KB n=2000
64 Correct 14 ms 24456 KB n=2000
65 Correct 16 ms 24384 KB n=2000
66 Correct 14 ms 24404 KB n=2000
67 Correct 17 ms 24416 KB n=2000
68 Correct 16 ms 24456 KB n=2000
69 Correct 14 ms 24392 KB n=2000
70 Correct 16 ms 24376 KB n=2000
71 Correct 13 ms 24408 KB n=2000
72 Correct 14 ms 24404 KB n=2000
73 Correct 15 ms 24404 KB n=2000
74 Correct 14 ms 24276 KB n=1844
75 Correct 13 ms 24336 KB n=2000
76 Correct 16 ms 24428 KB n=2000
77 Correct 16 ms 24404 KB n=2000
78 Correct 14 ms 24404 KB n=2000
79 Correct 14 ms 24380 KB n=2000
80 Correct 14 ms 24476 KB n=2000
81 Correct 14 ms 24404 KB n=2000
82 Correct 16 ms 24404 KB n=2000
83 Correct 13 ms 24404 KB n=2000
84 Correct 15 ms 24532 KB n=2000
85 Correct 14 ms 24416 KB n=2000
86 Correct 14 ms 24404 KB n=2000
87 Correct 14 ms 24404 KB n=2000
88 Correct 13 ms 24404 KB n=2000
89 Correct 14 ms 24400 KB n=2000
90 Correct 14 ms 24404 KB n=2000
91 Correct 14 ms 24344 KB n=2000
92 Correct 690 ms 84676 KB n=200000
93 Correct 1028 ms 88356 KB n=200000
94 Correct 965 ms 91248 KB n=200000
95 Correct 682 ms 84352 KB n=200000
96 Correct 698 ms 84276 KB n=200000
97 Correct 1087 ms 87300 KB n=200000
98 Correct 802 ms 84284 KB n=200000
99 Correct 990 ms 83884 KB n=200000
100 Correct 728 ms 84364 KB n=200000
101 Correct 952 ms 91992 KB n=200000
102 Correct 422 ms 85548 KB n=200000
103 Correct 418 ms 85536 KB n=200000
104 Correct 430 ms 85580 KB n=200000
105 Correct 434 ms 85452 KB n=200000
106 Correct 427 ms 85232 KB n=200000
107 Correct 426 ms 85224 KB n=200000
108 Correct 770 ms 84172 KB n=200000
109 Correct 806 ms 84252 KB n=200000
110 Correct 796 ms 84236 KB n=200000
111 Correct 675 ms 84284 KB n=200000
112 Correct 968 ms 91260 KB n=200000
113 Correct 1054 ms 87404 KB n=200000
114 Correct 691 ms 84376 KB n=200000
115 Correct 1130 ms 85364 KB n=200000
116 Correct 659 ms 84000 KB n=200000
117 Correct 984 ms 91472 KB n=200000
118 Correct 1083 ms 86188 KB n=200000
119 Correct 638 ms 84084 KB n=200000
120 Correct 914 ms 91892 KB n=200000
121 Correct 925 ms 91636 KB n=200000
122 Correct 915 ms 92212 KB n=200000
123 Correct 448 ms 84904 KB n=200000
124 Correct 218 ms 39056 KB n=25264