oj.uz

Submission #896624

# Submission time Handle Problem Language Result Execution time Memory
896624 2024-01-01T19:08:09 Z Denkata Birthday gift (IZhO18_treearray) C++14
100 / 100
 865 ms 102356 KB 
#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
const int maxn = 2e5+3;
vector <int> v[maxn];
int tin[maxn],tout[maxn];
vector <int> up[maxn];
int timer,i,j,p,q,n,m,k,l,Q,a[maxn];

void dfs(int u,int p)
{
    int i;
    tin[u]=++timer;
    up[u][0]=p;
    for(i=1;i<=l;i++)
    {
        up[u][i]=up[up[u][i-1]][i-1];
    }
    for(i=0;i<v[u].size();i++)
    {
        int q=v[u][i];
        if(q!=p)
        {
            dfs(q,u);
        }
    }
    tout[u]=++timer;
}
bool upper(int a,int b)
{
    return (tin[a]<=tin[b] && tout[a]>=tout[b]);
}
int lca(int a,int b)
{
    if(upper(a,b))return a;
    if(upper(b,a))return b;
    for(i=l;i>=0;i--)
    {
        if(!upper(up[a][i],b))
            a=up[a][i];
    }
    return up[a][0];
}
set <int> s[maxn],s2[maxn];
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin>>n>>m>>Q;
    l=1;
    while((1<<l)<=n)
        l++;
    for(i=1;i<n;i++)
    {
        cin>>p>>q;
        v[p].push_back(q);
        v[q].push_back(p);
    }
    for(i=0;i<=n+1;i++)
        up[i].resize(l+10);
    tout[0]=100000000;
    dfs(1,1);
    for(i=1;i<=m;i++)
        cin>>a[i];
    for(int i=1;i<=m;i++)
    {
        s2[a[i]].insert(i);
        if(i+1<=m)
            s[lca(a[i],a[i+1])].insert(i);
    }
    while(Q--)
    {
        int type;
        cin>>type;
        if(type==1)
        {
            cin>>p>>q;
            s2[a[p]].erase(p);
            if(p+1<=m)
                s[lca(a[p],a[p+1])].erase(p);
            if(p-1>=1)
                s[lca(a[p-1],a[p])].erase(p-1);


            s2[q].insert(p);
            a[p] = q;
            if(p+1<=m)
                s[lca(a[p],a[p+1])].insert(p);
            if(p-1>=1)
                s[lca(a[p-1],a[p])].insert(p-1);
        }
        else
        {
            int l,r,vv;
            cin>>l>>r>>vv;
            auto it = s2[vv].lower_bound(l);
            if(it!=s2[vv].end() && (*it)<=r)///nqma takuv ili ne vliza v [l;r]
            {
                cout<<*it<<" "<<*it<<endl;
                continue;
            }
            else
            {
                it = s[vv].lower_bound(l);
                if(it!=s[vv].end() && (*it)+1<=r)
                {
                    cout<<*it<<" "<<(*it)+1<<endl;
                    continue;
                }
            }
            cout<<"-1 -1"<<endl;
        }
    }
    return 0;
}
/*
5 4 4
1 2
3 1
3 4
5 3
4 5 2 3
2 1 3 1
1 3 5
2 3 4 5
2 1 3 1
*/

Compilation message

treearray.cpp: In function 'void dfs(int, int)':
treearray.cpp:19:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for(i=0;i<v[u].size();i++)
      |             ~^~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 30808 KB n=5
2 Correct 7 ms 30812 KB n=100
3 Correct 7 ms 30812 KB n=100
4 Correct 7 ms 30808 KB n=100
5 Correct 6 ms 30812 KB n=100
6 Correct 7 ms 30812 KB n=100
7 Correct 7 ms 30812 KB n=100
8 Correct 7 ms 30812 KB n=100
9 Correct 7 ms 31008 KB n=100
10 Correct 6 ms 30812 KB n=100
11 Correct 6 ms 30812 KB n=100
12 Correct 7 ms 30812 KB n=100
13 Correct 7 ms 31064 KB n=100
14 Correct 6 ms 30812 KB n=100
15 Correct 7 ms 30812 KB n=100
16 Correct 7 ms 30812 KB n=100
17 Correct 7 ms 30812 KB n=100
18 Correct 6 ms 30812 KB n=100
19 Correct 6 ms 30812 KB n=100
20 Correct 6 ms 30812 KB n=100
21 Correct 7 ms 30812 KB n=100
22 Correct 7 ms 30812 KB n=100
23 Correct 7 ms 30808 KB n=100
24 Correct 7 ms 30812 KB n=100
25 Correct 6 ms 30808 KB n=100
26 Correct 6 ms 30812 KB n=12
27 Correct 6 ms 30812 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 30808 KB n=5
2 Correct 7 ms 30812 KB n=100
3 Correct 7 ms 30812 KB n=100
4 Correct 7 ms 30808 KB n=100
5 Correct 6 ms 30812 KB n=100
6 Correct 7 ms 30812 KB n=100
7 Correct 7 ms 30812 KB n=100
8 Correct 7 ms 30812 KB n=100
9 Correct 7 ms 31008 KB n=100
10 Correct 6 ms 30812 KB n=100
11 Correct 6 ms 30812 KB n=100
12 Correct 7 ms 30812 KB n=100
13 Correct 7 ms 31064 KB n=100
14 Correct 6 ms 30812 KB n=100
15 Correct 7 ms 30812 KB n=100
16 Correct 7 ms 30812 KB n=100
17 Correct 7 ms 30812 KB n=100
18 Correct 6 ms 30812 KB n=100
19 Correct 6 ms 30812 KB n=100
20 Correct 6 ms 30812 KB n=100
21 Correct 7 ms 30812 KB n=100
22 Correct 7 ms 30812 KB n=100
23 Correct 7 ms 30808 KB n=100
24 Correct 7 ms 30812 KB n=100
25 Correct 6 ms 30808 KB n=100
26 Correct 6 ms 30812 KB n=12
27 Correct 6 ms 30812 KB n=100
28 Correct 7 ms 31064 KB n=500
29 Correct 7 ms 31068 KB n=500
30 Correct 7 ms 31120 KB n=500
31 Correct 7 ms 31068 KB n=500
32 Correct 7 ms 31068 KB n=500
33 Correct 7 ms 31068 KB n=500
34 Correct 7 ms 31068 KB n=500
35 Correct 7 ms 31068 KB n=500
36 Correct 7 ms 31068 KB n=500
37 Correct 8 ms 31068 KB n=500
38 Correct 7 ms 31064 KB n=500
39 Correct 7 ms 31068 KB n=500
40 Correct 8 ms 31068 KB n=500
41 Correct 6 ms 31064 KB n=500
42 Correct 7 ms 31320 KB n=500
43 Correct 7 ms 31068 KB n=500
44 Correct 8 ms 31068 KB n=500
45 Correct 7 ms 31068 KB n=500
46 Correct 7 ms 31068 KB n=500
47 Correct 6 ms 31068 KB n=500
48 Correct 7 ms 31064 KB n=500
49 Correct 8 ms 31064 KB n=500
50 Correct 7 ms 31068 KB n=500
51 Correct 7 ms 31068 KB n=500
52 Correct 7 ms 31068 KB n=500
53 Correct 8 ms 30956 KB n=500
54 Correct 7 ms 31068 KB n=500
55 Correct 6 ms 31068 KB n=278
56 Correct 8 ms 31068 KB n=500
57 Correct 7 ms 31068 KB n=500
58 Correct 7 ms 31068 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 30808 KB n=5
2 Correct 7 ms 30812 KB n=100
3 Correct 7 ms 30812 KB n=100
4 Correct 7 ms 30808 KB n=100
5 Correct 6 ms 30812 KB n=100
6 Correct 7 ms 30812 KB n=100
7 Correct 7 ms 30812 KB n=100
8 Correct 7 ms 30812 KB n=100
9 Correct 7 ms 31008 KB n=100
10 Correct 6 ms 30812 KB n=100
11 Correct 6 ms 30812 KB n=100
12 Correct 7 ms 30812 KB n=100
13 Correct 7 ms 31064 KB n=100
14 Correct 6 ms 30812 KB n=100
15 Correct 7 ms 30812 KB n=100
16 Correct 7 ms 30812 KB n=100
17 Correct 7 ms 30812 KB n=100
18 Correct 6 ms 30812 KB n=100
19 Correct 6 ms 30812 KB n=100
20 Correct 6 ms 30812 KB n=100
21 Correct 7 ms 30812 KB n=100
22 Correct 7 ms 30812 KB n=100
23 Correct 7 ms 30808 KB n=100
24 Correct 7 ms 30812 KB n=100
25 Correct 6 ms 30808 KB n=100
26 Correct 6 ms 30812 KB n=12
27 Correct 6 ms 30812 KB n=100
28 Correct 7 ms 31064 KB n=500
29 Correct 7 ms 31068 KB n=500
30 Correct 7 ms 31120 KB n=500
31 Correct 7 ms 31068 KB n=500
32 Correct 7 ms 31068 KB n=500
33 Correct 7 ms 31068 KB n=500
34 Correct 7 ms 31068 KB n=500
35 Correct 7 ms 31068 KB n=500
36 Correct 7 ms 31068 KB n=500
37 Correct 8 ms 31068 KB n=500
38 Correct 7 ms 31064 KB n=500
39 Correct 7 ms 31068 KB n=500
40 Correct 8 ms 31068 KB n=500
41 Correct 6 ms 31064 KB n=500
42 Correct 7 ms 31320 KB n=500
43 Correct 7 ms 31068 KB n=500
44 Correct 8 ms 31068 KB n=500
45 Correct 7 ms 31068 KB n=500
46 Correct 7 ms 31068 KB n=500
47 Correct 6 ms 31068 KB n=500
48 Correct 7 ms 31064 KB n=500
49 Correct 8 ms 31064 KB n=500
50 Correct 7 ms 31068 KB n=500
51 Correct 7 ms 31068 KB n=500
52 Correct 7 ms 31068 KB n=500
53 Correct 8 ms 30956 KB n=500
54 Correct 7 ms 31068 KB n=500
55 Correct 6 ms 31068 KB n=278
56 Correct 8 ms 31068 KB n=500
57 Correct 7 ms 31068 KB n=500
58 Correct 7 ms 31068 KB n=500
59 Correct 9 ms 31320 KB n=2000
60 Correct 10 ms 31576 KB n=2000
61 Correct 9 ms 31324 KB n=2000
62 Correct 9 ms 31324 KB n=2000
63 Correct 9 ms 31320 KB n=2000
64 Correct 9 ms 31324 KB n=2000
65 Correct 9 ms 31324 KB n=2000
66 Correct 8 ms 31324 KB n=2000
67 Correct 9 ms 31324 KB n=2000
68 Correct 10 ms 31320 KB n=2000
69 Correct 9 ms 31324 KB n=2000
70 Correct 9 ms 31320 KB n=2000
71 Correct 8 ms 31324 KB n=2000
72 Correct 8 ms 31520 KB n=2000
73 Correct 9 ms 31320 KB n=2000
74 Correct 9 ms 31324 KB n=1844
75 Correct 8 ms 31324 KB n=2000
76 Correct 9 ms 31324 KB n=2000
77 Correct 9 ms 31324 KB n=2000
78 Correct 9 ms 31324 KB n=2000
79 Correct 9 ms 31324 KB n=2000
80 Correct 8 ms 31576 KB n=2000
81 Correct 9 ms 31528 KB n=2000
82 Correct 9 ms 31320 KB n=2000
83 Correct 8 ms 31324 KB n=2000
84 Correct 9 ms 31324 KB n=2000
85 Correct 9 ms 31324 KB n=2000
86 Correct 9 ms 31276 KB n=2000
87 Correct 8 ms 31320 KB n=2000
88 Correct 9 ms 31576 KB n=2000
89 Correct 8 ms 31580 KB n=2000
90 Correct 9 ms 31580 KB n=2000
91 Correct 9 ms 31324 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 30808 KB n=5
2 Correct 7 ms 30812 KB n=100
3 Correct 7 ms 30812 KB n=100
4 Correct 7 ms 30808 KB n=100
5 Correct 6 ms 30812 KB n=100
6 Correct 7 ms 30812 KB n=100
7 Correct 7 ms 30812 KB n=100
8 Correct 7 ms 30812 KB n=100
9 Correct 7 ms 31008 KB n=100
10 Correct 6 ms 30812 KB n=100
11 Correct 6 ms 30812 KB n=100
12 Correct 7 ms 30812 KB n=100
13 Correct 7 ms 31064 KB n=100
14 Correct 6 ms 30812 KB n=100
15 Correct 7 ms 30812 KB n=100
16 Correct 7 ms 30812 KB n=100
17 Correct 7 ms 30812 KB n=100
18 Correct 6 ms 30812 KB n=100
19 Correct 6 ms 30812 KB n=100
20 Correct 6 ms 30812 KB n=100
21 Correct 7 ms 30812 KB n=100
22 Correct 7 ms 30812 KB n=100
23 Correct 7 ms 30808 KB n=100
24 Correct 7 ms 30812 KB n=100
25 Correct 6 ms 30808 KB n=100
26 Correct 6 ms 30812 KB n=12
27 Correct 6 ms 30812 KB n=100
28 Correct 7 ms 31064 KB n=500
29 Correct 7 ms 31068 KB n=500
30 Correct 7 ms 31120 KB n=500
31 Correct 7 ms 31068 KB n=500
32 Correct 7 ms 31068 KB n=500
33 Correct 7 ms 31068 KB n=500
34 Correct 7 ms 31068 KB n=500
35 Correct 7 ms 31068 KB n=500
36 Correct 7 ms 31068 KB n=500
37 Correct 8 ms 31068 KB n=500
38 Correct 7 ms 31064 KB n=500
39 Correct 7 ms 31068 KB n=500
40 Correct 8 ms 31068 KB n=500
41 Correct 6 ms 31064 KB n=500
42 Correct 7 ms 31320 KB n=500
43 Correct 7 ms 31068 KB n=500
44 Correct 8 ms 31068 KB n=500
45 Correct 7 ms 31068 KB n=500
46 Correct 7 ms 31068 KB n=500
47 Correct 6 ms 31068 KB n=500
48 Correct 7 ms 31064 KB n=500
49 Correct 8 ms 31064 KB n=500
50 Correct 7 ms 31068 KB n=500
51 Correct 7 ms 31068 KB n=500
52 Correct 7 ms 31068 KB n=500
53 Correct 8 ms 30956 KB n=500
54 Correct 7 ms 31068 KB n=500
55 Correct 6 ms 31068 KB n=278
56 Correct 8 ms 31068 KB n=500
57 Correct 7 ms 31068 KB n=500
58 Correct 7 ms 31068 KB n=500
59 Correct 9 ms 31320 KB n=2000
60 Correct 10 ms 31576 KB n=2000
61 Correct 9 ms 31324 KB n=2000
62 Correct 9 ms 31324 KB n=2000
63 Correct 9 ms 31320 KB n=2000
64 Correct 9 ms 31324 KB n=2000
65 Correct 9 ms 31324 KB n=2000
66 Correct 8 ms 31324 KB n=2000
67 Correct 9 ms 31324 KB n=2000
68 Correct 10 ms 31320 KB n=2000
69 Correct 9 ms 31324 KB n=2000
70 Correct 9 ms 31320 KB n=2000
71 Correct 8 ms 31324 KB n=2000
72 Correct 8 ms 31520 KB n=2000
73 Correct 9 ms 31320 KB n=2000
74 Correct 9 ms 31324 KB n=1844
75 Correct 8 ms 31324 KB n=2000
76 Correct 9 ms 31324 KB n=2000
77 Correct 9 ms 31324 KB n=2000
78 Correct 9 ms 31324 KB n=2000
79 Correct 9 ms 31324 KB n=2000
80 Correct 8 ms 31576 KB n=2000
81 Correct 9 ms 31528 KB n=2000
82 Correct 9 ms 31320 KB n=2000
83 Correct 8 ms 31324 KB n=2000
84 Correct 9 ms 31324 KB n=2000
85 Correct 9 ms 31324 KB n=2000
86 Correct 9 ms 31276 KB n=2000
87 Correct 8 ms 31320 KB n=2000
88 Correct 9 ms 31576 KB n=2000
89 Correct 8 ms 31580 KB n=2000
90 Correct 9 ms 31580 KB n=2000
91 Correct 9 ms 31324 KB n=2000
92 Correct 618 ms 89324 KB n=200000
93 Correct 650 ms 95832 KB n=200000
94 Correct 465 ms 100436 KB n=200000
95 Correct 650 ms 89532 KB n=200000
96 Correct 543 ms 89300 KB n=200000
97 Correct 783 ms 94680 KB n=200000
98 Correct 571 ms 89164 KB n=200000
99 Correct 682 ms 89424 KB n=200000
100 Correct 618 ms 89316 KB n=200000
101 Correct 434 ms 102356 KB n=200000
102 Correct 416 ms 90392 KB n=200000
103 Correct 350 ms 90332 KB n=200000
104 Correct 379 ms 90452 KB n=200000
105 Correct 374 ms 90804 KB n=200000
106 Correct 365 ms 90880 KB n=200000
107 Correct 376 ms 90976 KB n=200000
108 Correct 674 ms 89424 KB n=200000
109 Correct 643 ms 89344 KB n=200000
110 Correct 673 ms 89372 KB n=200000
111 Correct 657 ms 88700 KB n=200000
112 Correct 489 ms 100696 KB n=200000
113 Correct 769 ms 94556 KB n=200000
114 Correct 573 ms 88896 KB n=200000
115 Correct 865 ms 92072 KB n=200000
116 Correct 591 ms 89800 KB n=200000
117 Correct 446 ms 101268 KB n=200000
118 Correct 857 ms 93316 KB n=200000
119 Correct 613 ms 89328 KB n=200000
120 Correct 414 ms 100988 KB n=200000
121 Correct 399 ms 101212 KB n=200000
122 Correct 357 ms 101488 KB n=200000
123 Correct 391 ms 90640 KB n=200000
124 Correct 96 ms 46524 KB n=25264