oj.uz

Submission #999165

# Submission time Handle Problem Language Result Execution time Memory
999165 2024-06-15T07:42:26 Z imarn Tourism (JOI23_tourism) C++14
100 / 100
 255 ms 25808 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC target("avx2")
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define plx pair<ll,int>
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(),x.end()
#define vi vector<int>
#define vl vector<ll>
#define vvi vector<vi>
using namespace std;
const int mxn=1e5+5,blc=1200;
vector<int>g[mxn];
int fw[mxn]{0};
void add(int i,int amt){
    for(;i<mxn;i+=i&-i)fw[i]+=amt;
}
int get(int i,int res=0){
    for(;i;i-=i&-i)res+=fw[i];
    return res;
}
struct node{
    int l,r,id;
    bool operator<(const node &o)const{
        return l<o.l;
    }
};
multiset<node>ms[mxn];
int tin[mxn],cnt=0,pr[mxn],d[mxn]{0},sz[mxn],head[mxn];
void dfssz(int u,int p,int l){
    d[u]=l;sz[u]=1;pr[u]=p;
    for(auto v:g[u]){
        if(v==p)continue;
        dfssz(v,u,l+1);sz[u]+=sz[v];
    }
}
void hld(int u,int p,int tp){
    head[u]=tp;int hv=-1;tin[u]=++cnt;
    for(auto v:g[u]){
        if(v==p)continue;
        if(hv==-1||sz[v]>sz[hv])hv=v;
    }if(hv==-1)return;
    hld(hv,u,tp);
    for(auto v:g[u]){
        if(v==p||v==hv)continue;
        hld(v,u,v);
    }
}
void update(int u,int v,int id){
    while(head[u]!=head[v]){
        if(d[head[u]]<d[head[v]])swap(u,v);
        node x={tin[head[u]],tin[u],id};
        while(!ms[head[u]].empty()){
            node it = *ms[head[u]].begin();
            if(x.r<it.l)break;
            add(it.id,-(it.r-it.l+1));
            ms[head[u]].erase(it);
            if(it.r>x.r){
                it.l=x.r+1;
                add(it.id,it.r-it.l+1);
                ms[head[u]].insert(it);
            }
        }add(x.id,x.r-x.l+1);ms[head[u]].insert(x);u=pr[head[u]];
    }if(d[u]>d[v])swap(u,v);
    node x={tin[u],tin[v],id};
    while(!ms[head[u]].empty()){
        auto ij = ms[head[u]].upper_bound(x);
        if(ij==ms[head[u]].begin())break;
        node it = *(--ij);
        if(it.r<x.l)break;
        add(it.id,-(it.r-it.l+1));
        ms[head[u]].erase(it);
        if(x.r<it.r){
            node y=it;
            y.l=x.r+1;
            add(it.id,y.r-y.l+1);
            ms[head[u]].insert(y);
        }
        if(it.l<x.l){
            node y=it;
            y.r=x.l-1;
            add(it.id,y.r-y.l+1);
            ms[head[u]].insert(y);
        }
    }
    while(!ms[head[u]].empty()){
        auto ij = ms[head[u]].lower_bound(x);
        if(ij==ms[head[u]].end())break;
        node it=*ij;
        if(x.r<it.l)break;
        add(it.id,-(it.r-it.l+1));
        ms[head[u]].erase(it);
        if(x.r<it.r){
            node y=it;
            y.l=x.r+1;
            add(it.id,y.r-y.l+1);
            ms[head[u]].insert(y);
        }
    }add(x.id,x.r-x.l+1);ms[head[u]].insert(x);
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    int n,m,q;cin>>n>>m>>q;
    for(int i=1;i<=n-1;i++){
        int u,v;cin>>u>>v;g[u].pb(v),g[v].pb(u);
    }dfssz(1,1,0);hld(1,1,0);int a[m+1];
    for(int i=1;i<=m;i++)cin>>a[i];
    vector<pii>qr[m+1];int ans[q+1];
    for(int i=1;i<=q;i++){
        int l,r;cin>>l>>r;
        if(l==r)ans[i]=1;
        else qr[r].pb({l,i});
    }
    for(int i=2;i<=m;i++){
        update(a[i-1],a[i],i);
        for(auto it:qr[i]){
            ans[it.s]=get(i)-get(it.f);
        }
    }for(int i=1;i<=q;i++)cout<<ans[i]<<'\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9564 KB Output is correct
3 Correct 2 ms 9564 KB Output is correct
4 Correct 2 ms 9564 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 2 ms 9564 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9684 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 2 ms 9564 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9564 KB Output is correct
15 Correct 2 ms 9564 KB Output is correct
16 Correct 2 ms 9564 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 2 ms 9564 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9680 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 2 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 2 ms 9688 KB Output is correct
27 Correct 2 ms 9564 KB Output is correct
28 Correct 2 ms 9652 KB Output is correct
29 Correct 2 ms 9564 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9564 KB Output is correct
3 Correct 2 ms 9564 KB Output is correct
4 Correct 2 ms 9564 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 2 ms 9564 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9684 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 2 ms 9564 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9564 KB Output is correct
15 Correct 2 ms 9564 KB Output is correct
16 Correct 2 ms 9564 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 2 ms 9564 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9680 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 2 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 2 ms 9688 KB Output is correct
27 Correct 2 ms 9564 KB Output is correct
28 Correct 2 ms 9652 KB Output is correct
29 Correct 2 ms 9564 KB Output is correct
30 Correct 4 ms 9820 KB Output is correct
31 Correct 4 ms 9820 KB Output is correct
32 Correct 4 ms 9964 KB Output is correct
33 Correct 4 ms 9956 KB Output is correct
34 Correct 4 ms 9876 KB Output is correct
35 Correct 4 ms 9816 KB Output is correct
36 Correct 4 ms 9816 KB Output is correct
37 Correct 4 ms 9820 KB Output is correct
38 Correct 3 ms 9820 KB Output is correct
39 Correct 3 ms 9820 KB Output is correct
40 Correct 3 ms 9820 KB Output is correct
41 Correct 3 ms 9908 KB Output is correct
42 Correct 3 ms 9820 KB Output is correct
43 Correct 3 ms 9816 KB Output is correct
44 Correct 4 ms 9820 KB Output is correct
45 Correct 3 ms 9820 KB Output is correct
46 Correct 4 ms 9820 KB Output is correct
47 Correct 4 ms 9820 KB Output is correct
48 Correct 3 ms 9820 KB Output is correct
49 Correct 3 ms 9820 KB Output is correct
50 Correct 3 ms 9820 KB Output is correct
51 Correct 3 ms 9820 KB Output is correct
52 Correct 3 ms 9820 KB Output is correct
53 Correct 3 ms 9824 KB Output is correct
54 Correct 3 ms 9820 KB Output is correct
55 Correct 3 ms 9820 KB Output is correct
56 Correct 2 ms 9800 KB Output is correct
57 Correct 2 ms 9564 KB Output is correct
58 Correct 4 ms 9820 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 1 ms 9564 KB Output is correct
3 Correct 2 ms 9564 KB Output is correct
4 Correct 71 ms 18260 KB Output is correct
5 Correct 59 ms 19540 KB Output is correct
6 Correct 69 ms 20488 KB Output is correct
7 Correct 90 ms 23124 KB Output is correct
8 Correct 94 ms 23124 KB Output is correct
9 Correct 91 ms 22904 KB Output is correct
10 Correct 90 ms 23124 KB Output is correct
11 Correct 94 ms 23000 KB Output is correct
12 Correct 102 ms 22488 KB Output is correct
13 Correct 101 ms 22428 KB Output is correct
14 Correct 103 ms 22356 KB Output is correct
15 Correct 32 ms 19280 KB Output is correct
16 Correct 80 ms 20552 KB Output is correct
17 Correct 40 ms 16324 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9680 KB Output is correct
2 Correct 85 ms 15716 KB Output is correct
3 Correct 143 ms 17744 KB Output is correct
4 Correct 107 ms 17100 KB Output is correct
5 Correct 150 ms 20644 KB Output is correct
6 Correct 155 ms 20820 KB Output is correct
7 Correct 166 ms 20728 KB Output is correct
8 Correct 163 ms 20820 KB Output is correct
9 Correct 160 ms 20816 KB Output is correct
10 Correct 166 ms 20720 KB Output is correct
11 Correct 150 ms 20820 KB Output is correct
12 Correct 167 ms 20820 KB Output is correct
13 Correct 165 ms 21328 KB Output is correct
14 Correct 169 ms 22096 KB Output is correct
15 Correct 179 ms 22428 KB Output is correct
16 Correct 168 ms 21332 KB Output is correct
17 Correct 172 ms 21356 KB Output is correct
18 Correct 168 ms 21328 KB Output is correct
19 Correct 135 ms 17488 KB Output is correct
20 Correct 132 ms 17500 KB Output is correct
21 Correct 139 ms 17536 KB Output is correct
22 Correct 139 ms 17544 KB Output is correct
23 Correct 131 ms 17492 KB Output is correct
24 Correct 142 ms 17568 KB Output is correct
25 Correct 133 ms 17500 KB Output is correct
26 Correct 134 ms 17440 KB Output is correct
27 Correct 132 ms 17488 KB Output is correct
28 Correct 135 ms 17748 KB Output is correct
29 Correct 139 ms 17748 KB Output is correct
30 Correct 140 ms 17748 KB Output is correct
31 Correct 143 ms 18148 KB Output is correct
32 Correct 145 ms 18700 KB Output is correct
33 Correct 153 ms 19540 KB Output is correct
34 Correct 165 ms 19360 KB Output is correct

Subtask #5
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9676 KB Output is correct
3 Correct 2 ms 9564 KB Output is correct
4 Correct 216 ms 21284 KB Output is correct
5 Correct 255 ms 21584 KB Output is correct
6 Correct 238 ms 23988 KB Output is correct
7 Correct 251 ms 25364 KB Output is correct
8 Correct 247 ms 25148 KB Output is correct
9 Correct 252 ms 25172 KB Output is correct
10 Correct 248 ms 25172 KB Output is correct
11 Correct 244 ms 25172 KB Output is correct
12 Correct 243 ms 25172 KB Output is correct
13 Correct 247 ms 25172 KB Output is correct
14 Correct 34 ms 16212 KB Output is correct

Subtask #6
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9564 KB Output is correct
3 Correct 2 ms 9564 KB Output is correct
4 Correct 2 ms 9564 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 2 ms 9564 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9684 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 2 ms 9564 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9564 KB Output is correct
15 Correct 2 ms 9564 KB Output is correct
16 Correct 2 ms 9564 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 2 ms 9564 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9680 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 2 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 2 ms 9688 KB Output is correct
27 Correct 2 ms 9564 KB Output is correct
28 Correct 2 ms 9652 KB Output is correct
29 Correct 2 ms 9564 KB Output is correct
30 Correct 4 ms 9820 KB Output is correct
31 Correct 4 ms 9820 KB Output is correct
32 Correct 4 ms 9964 KB Output is correct
33 Correct 4 ms 9956 KB Output is correct
34 Correct 4 ms 9876 KB Output is correct
35 Correct 4 ms 9816 KB Output is correct
36 Correct 4 ms 9816 KB Output is correct
37 Correct 4 ms 9820 KB Output is correct
38 Correct 3 ms 9820 KB Output is correct
39 Correct 3 ms 9820 KB Output is correct
40 Correct 3 ms 9820 KB Output is correct
41 Correct 3 ms 9908 KB Output is correct
42 Correct 3 ms 9820 KB Output is correct
43 Correct 3 ms 9816 KB Output is correct
44 Correct 4 ms 9820 KB Output is correct
45 Correct 3 ms 9820 KB Output is correct
46 Correct 4 ms 9820 KB Output is correct
47 Correct 4 ms 9820 KB Output is correct
48 Correct 3 ms 9820 KB Output is correct
49 Correct 3 ms 9820 KB Output is correct
50 Correct 3 ms 9820 KB Output is correct
51 Correct 3 ms 9820 KB Output is correct
52 Correct 3 ms 9820 KB Output is correct
53 Correct 3 ms 9824 KB Output is correct
54 Correct 3 ms 9820 KB Output is correct
55 Correct 3 ms 9820 KB Output is correct
56 Correct 2 ms 9800 KB Output is correct
57 Correct 2 ms 9564 KB Output is correct
58 Correct 4 ms 9820 KB Output is correct
59 Correct 2 ms 9564 KB Output is correct
60 Correct 1 ms 9564 KB Output is correct
61 Correct 2 ms 9564 KB Output is correct
62 Correct 71 ms 18260 KB Output is correct
63 Correct 59 ms 19540 KB Output is correct
64 Correct 69 ms 20488 KB Output is correct
65 Correct 90 ms 23124 KB Output is correct
66 Correct 94 ms 23124 KB Output is correct
67 Correct 91 ms 22904 KB Output is correct
68 Correct 90 ms 23124 KB Output is correct
69 Correct 94 ms 23000 KB Output is correct
70 Correct 102 ms 22488 KB Output is correct
71 Correct 101 ms 22428 KB Output is correct
72 Correct 103 ms 22356 KB Output is correct
73 Correct 32 ms 19280 KB Output is correct
74 Correct 80 ms 20552 KB Output is correct
75 Correct 40 ms 16324 KB Output is correct
76 Correct 2 ms 9680 KB Output is correct
77 Correct 85 ms 15716 KB Output is correct
78 Correct 143 ms 17744 KB Output is correct
79 Correct 107 ms 17100 KB Output is correct
80 Correct 150 ms 20644 KB Output is correct
81 Correct 155 ms 20820 KB Output is correct
82 Correct 166 ms 20728 KB Output is correct
83 Correct 163 ms 20820 KB Output is correct
84 Correct 160 ms 20816 KB Output is correct
85 Correct 166 ms 20720 KB Output is correct
86 Correct 150 ms 20820 KB Output is correct
87 Correct 167 ms 20820 KB Output is correct
88 Correct 165 ms 21328 KB Output is correct
89 Correct 169 ms 22096 KB Output is correct
90 Correct 179 ms 22428 KB Output is correct
91 Correct 168 ms 21332 KB Output is correct
92 Correct 172 ms 21356 KB Output is correct
93 Correct 168 ms 21328 KB Output is correct
94 Correct 135 ms 17488 KB Output is correct
95 Correct 132 ms 17500 KB Output is correct
96 Correct 139 ms 17536 KB Output is correct
97 Correct 139 ms 17544 KB Output is correct
98 Correct 131 ms 17492 KB Output is correct
99 Correct 142 ms 17568 KB Output is correct
100 Correct 133 ms 17500 KB Output is correct
101 Correct 134 ms 17440 KB Output is correct
102 Correct 132 ms 17488 KB Output is correct
103 Correct 135 ms 17748 KB Output is correct
104 Correct 139 ms 17748 KB Output is correct
105 Correct 140 ms 17748 KB Output is correct
106 Correct 143 ms 18148 KB Output is correct
107 Correct 145 ms 18700 KB Output is correct
108 Correct 153 ms 19540 KB Output is correct
109 Correct 165 ms 19360 KB Output is correct
110 Correct 2 ms 9564 KB Output is correct
111 Correct 2 ms 9676 KB Output is correct
112 Correct 2 ms 9564 KB Output is correct
113 Correct 216 ms 21284 KB Output is correct
114 Correct 255 ms 21584 KB Output is correct
115 Correct 238 ms 23988 KB Output is correct
116 Correct 251 ms 25364 KB Output is correct
117 Correct 247 ms 25148 KB Output is correct
118 Correct 252 ms 25172 KB Output is correct
119 Correct 248 ms 25172 KB Output is correct
120 Correct 244 ms 25172 KB Output is correct
121 Correct 243 ms 25172 KB Output is correct
122 Correct 247 ms 25172 KB Output is correct
123 Correct 34 ms 16212 KB Output is correct
124 Correct 159 ms 23892 KB Output is correct
125 Correct 128 ms 21000 KB Output is correct
126 Correct 189 ms 24916 KB Output is correct
127 Correct 187 ms 24916 KB Output is correct
128 Correct 189 ms 24916 KB Output is correct
129 Correct 188 ms 24916 KB Output is correct
130 Correct 186 ms 24916 KB Output is correct
131 Correct 94 ms 22356 KB Output is correct
132 Correct 96 ms 22964 KB Output is correct
133 Correct 93 ms 21332 KB Output is correct
134 Correct 155 ms 21588 KB Output is correct
135 Correct 166 ms 21588 KB Output is correct
136 Correct 175 ms 21804 KB Output is correct
137 Correct 75 ms 25796 KB Output is correct
138 Correct 73 ms 25772 KB Output is correct
139 Correct 72 ms 25808 KB Output is correct
140 Correct 74 ms 25804 KB Output is correct
141 Correct 75 ms 25764 KB Output is correct
142 Correct 80 ms 25804 KB Output is correct
143 Correct 36 ms 15188 KB Output is correct
144 Correct 188 ms 22440 KB Output is correct