oj.uz

Submission #865444

# Submission time Handle Problem Language Result Execution time Memory
865444 2023-10-24T08:29:49 Z owoovo Tourism (JOI23_tourism) C++14
52 / 100
 5000 ms 21548 KB 
#include<bits/stdc++.h>
#define pii pair<pair<int,int>,int>
#define F first 
#define S second
using namespace std;
int n,m,q,bit[100010],v[100010],c[100010],dp[25][100010],depth[100010],u;
vector<int> e[100010];
vector<pii> qu;
bool cmp(pii a, pii b){
    return a.S<b.S;
}
void modify(int x,int p){
    while(p<=m){
        bit[p]+=x;
        p+=p&(-p);
    }
    return ;
}
int que(int p){
    int ans=0;
    while(p){
        ans+=bit[p];
        p-=p&(-p);
    }
    return ans;
}
void dfs(int now,int last){
    dp[0][now]=last;
    depth[now]=depth[last]+1;
    for(auto x:e[now]){
        if(x==last)continue;
        dfs(x,now);
    }
    return;
}
int lca(int a,int b){
    if(depth[a]>depth[b])swap(a,b);
    for(int i=19;i>=0;i--){
        if(depth[a]+(1<<i)<=depth[b]){
            b=dp[i][b];
        }
    }
    if(a==b)return a;
    for(int i=19;i>=0;i--){
        if(dp[i][a]!=dp[i][b]){
            a=dp[i][a];
            b=dp[i][b];
        }
    }
    return dp[0][a];
}
int main(){
    u=0;
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin>>n>>m>>q;
    for(int i=1;i<n;i++){
        int a,b;
        cin>>a>>b;
        e[a].push_back(b);
        e[b].push_back(a);
    }
    for(int i=1;i<=m;i++){
        cin>>v[i];
    }
    for(int i=0;i<q;i++){
        int a,b;
        cin>>a>>b;
        if(a==m)b=1,u++;
        qu.push_back({{a,b},i});
    }
    dfs(1,1);
    for(int i=1;i<=19;i++){
        for(int j=1;j<=n;j++){
            dp[i][j]=dp[i-1][dp[i-1][j]];
        }
    }
    sort(qu.begin(),qu.end());
    int now=q-1-u;

    for(int i=m-1;i>0;i--){
        
        int p=lca(v[i],v[i+1]);
        
        int nw=v[i];
        while(nw!=p){
            if(c[nw]>0)modify(-1,c[nw]);
            c[nw]=i;
            modify(1,i);
            nw=dp[0][nw];
        }
        nw=v[i+1];
        while(nw!=p){
            if(c[nw]>0)modify(-1,c[nw]);
            c[nw]=i;
            modify(1,i);
            nw=dp[0][nw];
        }
        if(c[p]>0)modify(-1,c[p]);
        c[p]=i;
        modify(1,i);
        while(now>=0&&qu[now].F.F==i){
            if(qu[now].F.F==qu[now].F.S){
                qu[now].F.S=1;
            }else{
                qu[now].F.S=que(qu[now].F.S-1);
            }
            now--;
        }
    }

    sort(qu.begin(),qu.end(),cmp);
    for(auto x:qu){
        cout<<x.F.S<<"\n"; 
    }
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 10840 KB Output is correct
2 Correct 1 ms 10840 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 2 ms 10908 KB Output is correct
5 Correct 2 ms 10844 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10856 KB Output is correct
8 Correct 2 ms 10888 KB Output is correct
9 Correct 2 ms 10844 KB Output is correct
10 Correct 2 ms 10844 KB Output is correct
11 Correct 2 ms 10844 KB Output is correct
12 Correct 2 ms 10844 KB Output is correct
13 Correct 2 ms 10844 KB Output is correct
14 Correct 2 ms 10844 KB Output is correct
15 Correct 3 ms 10844 KB Output is correct
16 Correct 2 ms 10844 KB Output is correct
17 Correct 2 ms 10840 KB Output is correct
18 Correct 2 ms 10844 KB Output is correct
19 Correct 2 ms 10844 KB Output is correct
20 Correct 2 ms 10840 KB Output is correct
21 Correct 2 ms 10844 KB Output is correct
22 Correct 2 ms 10844 KB Output is correct
23 Correct 2 ms 10840 KB Output is correct
24 Correct 2 ms 10844 KB Output is correct
25 Correct 2 ms 10844 KB Output is correct
26 Correct 2 ms 10844 KB Output is correct
27 Correct 1 ms 10844 KB Output is correct
28 Correct 2 ms 10844 KB Output is correct
29 Correct 2 ms 10840 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 10840 KB Output is correct
2 Correct 1 ms 10840 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 2 ms 10908 KB Output is correct
5 Correct 2 ms 10844 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10856 KB Output is correct
8 Correct 2 ms 10888 KB Output is correct
9 Correct 2 ms 10844 KB Output is correct
10 Correct 2 ms 10844 KB Output is correct
11 Correct 2 ms 10844 KB Output is correct
12 Correct 2 ms 10844 KB Output is correct
13 Correct 2 ms 10844 KB Output is correct
14 Correct 2 ms 10844 KB Output is correct
15 Correct 3 ms 10844 KB Output is correct
16 Correct 2 ms 10844 KB Output is correct
17 Correct 2 ms 10840 KB Output is correct
18 Correct 2 ms 10844 KB Output is correct
19 Correct 2 ms 10844 KB Output is correct
20 Correct 2 ms 10840 KB Output is correct
21 Correct 2 ms 10844 KB Output is correct
22 Correct 2 ms 10844 KB Output is correct
23 Correct 2 ms 10840 KB Output is correct
24 Correct 2 ms 10844 KB Output is correct
25 Correct 2 ms 10844 KB Output is correct
26 Correct 2 ms 10844 KB Output is correct
27 Correct 1 ms 10844 KB Output is correct
28 Correct 2 ms 10844 KB Output is correct
29 Correct 2 ms 10840 KB Output is correct
30 Correct 3 ms 10840 KB Output is correct
31 Correct 3 ms 10840 KB Output is correct
32 Correct 4 ms 11100 KB Output is correct
33 Correct 5 ms 11244 KB Output is correct
34 Correct 3 ms 10844 KB Output is correct
35 Correct 3 ms 11100 KB Output is correct
36 Correct 3 ms 11100 KB Output is correct
37 Correct 3 ms 11100 KB Output is correct
38 Correct 14 ms 11100 KB Output is correct
39 Correct 15 ms 11100 KB Output is correct
40 Correct 15 ms 11148 KB Output is correct
41 Correct 15 ms 11100 KB Output is correct
42 Correct 15 ms 11156 KB Output is correct
43 Correct 14 ms 11096 KB Output is correct
44 Correct 9 ms 11100 KB Output is correct
45 Correct 7 ms 10900 KB Output is correct
46 Correct 8 ms 11100 KB Output is correct
47 Correct 8 ms 11100 KB Output is correct
48 Correct 7 ms 11104 KB Output is correct
49 Correct 9 ms 11096 KB Output is correct
50 Correct 3 ms 11096 KB Output is correct
51 Correct 3 ms 10904 KB Output is correct
52 Correct 3 ms 10900 KB Output is correct
53 Correct 3 ms 11004 KB Output is correct
54 Correct 3 ms 11100 KB Output is correct
55 Correct 3 ms 11100 KB Output is correct
56 Correct 2 ms 10844 KB Output is correct
57 Correct 2 ms 11048 KB Output is correct
58 Correct 3 ms 11096 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10840 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Execution timed out 5053 ms 17132 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 10840 KB Output is correct
2 Correct 50 ms 13148 KB Output is correct
3 Correct 74 ms 13652 KB Output is correct
4 Correct 63 ms 15956 KB Output is correct
5 Correct 95 ms 17232 KB Output is correct
6 Correct 95 ms 17196 KB Output is correct
7 Correct 94 ms 17264 KB Output is correct
8 Correct 93 ms 17236 KB Output is correct
9 Correct 97 ms 17232 KB Output is correct
10 Correct 106 ms 17380 KB Output is correct
11 Correct 92 ms 17272 KB Output is correct
12 Correct 102 ms 17440 KB Output is correct
13 Correct 97 ms 17580 KB Output is correct
14 Correct 103 ms 17744 KB Output is correct
15 Correct 150 ms 18720 KB Output is correct
16 Correct 98 ms 19356 KB Output is correct
17 Correct 100 ms 19248 KB Output is correct
18 Correct 96 ms 19328 KB Output is correct
19 Correct 1942 ms 19068 KB Output is correct
20 Correct 2163 ms 19368 KB Output is correct
21 Correct 1852 ms 19300 KB Output is correct
22 Correct 1817 ms 19336 KB Output is correct
23 Correct 2135 ms 19452 KB Output is correct
24 Correct 2029 ms 18948 KB Output is correct
25 Correct 2086 ms 19368 KB Output is correct
26 Correct 1911 ms 19140 KB Output is correct
27 Correct 2008 ms 19288 KB Output is correct
28 Correct 1866 ms 19292 KB Output is correct
29 Correct 2033 ms 19568 KB Output is correct
30 Correct 1911 ms 19284 KB Output is correct
31 Correct 1841 ms 19620 KB Output is correct
32 Correct 1942 ms 19868 KB Output is correct
33 Correct 1695 ms 20324 KB Output is correct
34 Correct 2340 ms 21548 KB Output is correct

Subtask #5
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 11092 KB Output is correct
2 Correct 2 ms 10840 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 111 ms 15312 KB Output is correct
5 Correct 112 ms 15308 KB Output is correct
6 Correct 152 ms 18376 KB Output is correct
7 Correct 135 ms 19144 KB Output is correct
8 Correct 135 ms 18896 KB Output is correct
9 Correct 156 ms 19144 KB Output is correct
10 Correct 134 ms 19144 KB Output is correct
11 Correct 134 ms 19140 KB Output is correct
12 Correct 136 ms 19064 KB Output is correct
13 Correct 134 ms 19140 KB Output is correct
14 Correct 47 ms 13112 KB Output is correct

Subtask #6
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 10840 KB Output is correct
2 Correct 1 ms 10840 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 2 ms 10908 KB Output is correct
5 Correct 2 ms 10844 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10856 KB Output is correct
8 Correct 2 ms 10888 KB Output is correct
9 Correct 2 ms 10844 KB Output is correct
10 Correct 2 ms 10844 KB Output is correct
11 Correct 2 ms 10844 KB Output is correct
12 Correct 2 ms 10844 KB Output is correct
13 Correct 2 ms 10844 KB Output is correct
14 Correct 2 ms 10844 KB Output is correct
15 Correct 3 ms 10844 KB Output is correct
16 Correct 2 ms 10844 KB Output is correct
17 Correct 2 ms 10840 KB Output is correct
18 Correct 2 ms 10844 KB Output is correct
19 Correct 2 ms 10844 KB Output is correct
20 Correct 2 ms 10840 KB Output is correct
21 Correct 2 ms 10844 KB Output is correct
22 Correct 2 ms 10844 KB Output is correct
23 Correct 2 ms 10840 KB Output is correct
24 Correct 2 ms 10844 KB Output is correct
25 Correct 2 ms 10844 KB Output is correct
26 Correct 2 ms 10844 KB Output is correct
27 Correct 1 ms 10844 KB Output is correct
28 Correct 2 ms 10844 KB Output is correct
29 Correct 2 ms 10840 KB Output is correct
30 Correct 3 ms 10840 KB Output is correct
31 Correct 3 ms 10840 KB Output is correct
32 Correct 4 ms 11100 KB Output is correct
33 Correct 5 ms 11244 KB Output is correct
34 Correct 3 ms 10844 KB Output is correct
35 Correct 3 ms 11100 KB Output is correct
36 Correct 3 ms 11100 KB Output is correct
37 Correct 3 ms 11100 KB Output is correct
38 Correct 14 ms 11100 KB Output is correct
39 Correct 15 ms 11100 KB Output is correct
40 Correct 15 ms 11148 KB Output is correct
41 Correct 15 ms 11100 KB Output is correct
42 Correct 15 ms 11156 KB Output is correct
43 Correct 14 ms 11096 KB Output is correct
44 Correct 9 ms 11100 KB Output is correct
45 Correct 7 ms 10900 KB Output is correct
46 Correct 8 ms 11100 KB Output is correct
47 Correct 8 ms 11100 KB Output is correct
48 Correct 7 ms 11104 KB Output is correct
49 Correct 9 ms 11096 KB Output is correct
50 Correct 3 ms 11096 KB Output is correct
51 Correct 3 ms 10904 KB Output is correct
52 Correct 3 ms 10900 KB Output is correct
53 Correct 3 ms 11004 KB Output is correct
54 Correct 3 ms 11100 KB Output is correct
55 Correct 3 ms 11100 KB Output is correct
56 Correct 2 ms 10844 KB Output is correct
57 Correct 2 ms 11048 KB Output is correct
58 Correct 3 ms 11096 KB Output is correct
59 Correct 2 ms 10840 KB Output is correct
60 Correct 2 ms 10844 KB Output is correct
61 Correct 2 ms 10844 KB Output is correct
62 Execution timed out 5053 ms 17132 KB Time limit exceeded
63 Halted 0 ms 0 KB -