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Submission #1005091

# Submission time Handle Problem Language Result Execution time Memory
1005091 2024-06-22T07:07:41 Z modwwe Tourism (JOI23_tourism) C++17
28 / 100
 5000 ms 24304 KB 
///https://www.instagram.com/_modwwe/
#include<bits/stdc++.h>
//#define int long long
//#define ll long long
#define down cout<<'\n';
#define NHP     ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
void phongbeo();
const int mod2=1e9+7;
const int  mod1=998244353;
struct icd
{
    int a,b;
};
struct ib
{
    int a;
    int b;
};
struct ic
{
    int a,b,c;
};
struct id
{
    int a,c;
};
struct ie
{
    int a,b,c, d,e,f;

};
int n,m,s1,s2,s4,s3,sf,k,r,mid,s5,s6,mx,s7,s8,s9,mx2,res,dem2=0,dem=0,l;
int  i,s10,s12;
int el=29;
main()
{
#ifndef ONLINE_JUDGE
  //  fin(task),fou(task);
#endif
    NHP
    /// cin>>s1;
    // modwwe
    phongbeo();
}
id t[400007];
int depth[100007];
ic a[100007];
int c[100007];
ib euler[100007];
int d[100007];
int st[17][100007];
int ans[1000007];
int S;
int b[100007];
vector<int> v[100007];
int e[100007];
int lz[400007];
int pre[400007];
int nxt[100007];
bool cmp(ic a,ic b)
{
    if(a.a/S==b.a/S) return a.b<b.b;
    return        a.a/S<b.a/S;
}
void upd(int node,int l,int r,int l1,int r1,int cc)
{
    if(l>=l1&&r<=r1)
    {
        t[node].c+=cc;
        s10=t[node].c;
        if(t[node].c>0) t[node]= {l,t[node].c};
        else t[node]= {0,0};
        return;
    }
    int mid=l+r>>1;
    if(mid>=r1)
    upd(node<<1,l,mid,l1,r1,cc);
    else
    upd(node<<1|1,mid+1,r,l1,r1,cc);
    t[node].a=max(t[node<<1].a,t[node<<1|1].a);
}
int get1(int node,int l,int r,int l1,int r1)
{
    if(l>r1||r<l1) return 0;
    if(l>=l1&&r<=r1) return t[node].a;

    int mid=l+r>>1;
    return max(get1(node<<1,l,mid,l1,r1),get1(node<<1|1,mid+1,r,l1,r1));
}
void dfs(int x,int y)
{
    st[0][x]=y;
    depth[x]=depth[y]+1;
    euler[x].a=++dem;
    c[dem]=x;
    for(auto f:v[x])
        if(f!=y)
            dfs(f,x);
    euler[x].b=dem;
}
int lca(int x,int y,int cc)
{
    if(x==0||x==n+1||y==0||y==n+1) return 1;
    if(depth[x]<depth[y]) swap(x,y),cc=0;
    int ss=depth[x]-depth[y]-1;
    if(ss>=0)
        for(int j=0; j<17; j++)
            if(bit(ss,j))
                x=st[j][x];
    if(st[0][x]==y) return x;
    if(ss!=-1)  x=st[0][x];
    for(int j=16; j>=0; --j)
        if(st[j][x]!=st[j][y])
            x=st[j][x],y=st[j][y];
    if(cc==0) return y;
    else
        return x;
}
int lca2(int x,int y)
{
    if(x==0 )return y;
    if(y==0 )return x;
    if(depth[x]<depth[y]) swap(x,y);
    int ss=depth[x]-depth[y];
    for(int j=0; j<17; j++)
        if(bit(ss,j))
            x=st[j][x];
    if(x==y) return x;
    for(int j=16; j>=0; --j)
        if(st[j][x]!=st[j][y])
            x=st[j][x],y=st[j][y];
    return st[0][x];
}
void build2(int node,int l,int r)
{
    if(l==r)
    {
        lz[node]=b[l];
        return;
    }
    int mid=l+r>>1;
    build2(node<<1,l,mid);
    build2(node<<1|1,mid+1,r);
    lz[node]=lca2(lz[node<<1],lz[node<<1|1]);
}
int get_lca(int node,int l,int r,int l1,int r1)
{
    if(l>r1||r<l1) return 0;
    if(l>=l1&&r<=r1) return lz[node];
    int mid=l+r>>1;
    return lca2(get_lca(node<<1,l,mid,l1,r1),get_lca(node<<1|1,mid+1,r,l1,r1));
}
void add(int x)
{
    s2=get1(1,1,n,1,euler[x].a);
    /// s3=get2(1,1,n,euler[x].a,n);
    upd(1,1,n,euler[x].a,euler[x].a,1);
    if(d[x]!=0||s10>1) return;
    s2=c[s2];
    s3=nxt[s2];
    pre[x]=s2;
    nxt[x]=s3;
    nxt[s2]=x;
    pre[s3]=x;
//if(l==3&&x==1) cout<<s2<<" "<<s3<<" "<<x,down
    s2=lca(x,s2,1);
    s3=lca(x,s3,1);
    if(depth[s2]<depth[s3]) swap(s2,s3);
    if(depth[x]>=depth[s2])
    {
        s4+=depth[x]-depth[s2]+1;
        d[x]=s2;
        e[s2]=x;
    }
}
void del(int x)
{
    upd(1,1,n,euler[x].a,euler[x].a,-1);
    s5=d[x];
    //s2=get1(1,1,n,euler[s5].a,euler[x].a);
    //s3=get2(1,1,n,euler[x].a,euler[s5].b);
    if(s10>=1) return;
    s2=pre[x];
    s3=nxt[x];
    nxt[s2]=s3;
    if(s3!=0) pre[s3]=s2;
    pre[x]=0;
    nxt[x]=0;
    s9=s2;
    if(d[x]==0)return;
    d[x]=0;
    e[s5]=0;
    s4-=(depth[x]-depth[s5]+1);
    s2=lca(s2,x,1);
    s3=lca(s3,x,1);
    if(max(depth[s2],depth[s3])<=depth[s5]) return;
    if(st[0][s2]==s9&&depth[s2]>=depth[s3]&&d[s2]==0)
    {
        s2=s9;
        s4+=depth[s2]-depth[s5]+1;
        d[s2]=s5;
        e[s5]=s2;
        return;
    }
    if(depth[s2]<depth[s3])swap(s2,s3);
    if(depth[s5]<depth[s2])
    {
        s3=e[s2];
        e[s2]=0;
        e[s5]=s3;
        d[s3]=s5;
        s4+=(depth[s2]-depth[s5]);
    }
}
void go(int x,int y)
{
    while(r<y)
    {
        r++;
        add(b[r]);

    }
    while(l>x)
    {
        l--;

        add(b[l]);
        //cout<<l<<" "<<s4,down

    }
    //cout<<s4<<" "<<x<<" "<<y,down
    while(l<x)
    {
        del(b[l]);
        l++;
    }
    while(r>y)
    {
        del(b[r]);

        r--;
    }

}
void phongbeo()
{
    cin>>n>>m>>k;
    S=sqrt(m);
    for(int i=1; i<n; i++)
        cin>>l>>r,v[l].pb(r),v[r].pb(l);
    dfs(1,0);
    for(int i=1; i<17; i++)
        for(int j=1; j<=n; j++)
            st[i][j]=st[i-1][st[i-1][j]];
    for(int i=1; i<=m; i++)
        cin>>b[i];
    for(int i=1; i<=k; i++)
        cin>>a[i].a>>a[i].b,a[i].c=i;
    sort(a+1,a+1+k,cmp);
    l=1;
    r=0;
    build2(1,1,m);
    for(int i=1; i<=k; i++)
    {
        go(a[i].a,a[i].b);
        s3=get_lca(1,1,m,a[i].a,a[i].b);
        ans[a[i].c]=s4+depth[1]-depth[s3];
    }
    for(int i=1; i<=k; i++)
        cout<<ans[i],down
    }
/*
8 8 2
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 6 4 3 5 2 4 7
2 8
1 2

*/

Compilation message

tourism.cpp:44:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   44 | main()
      | ^~~~
tourism.cpp: In function 'void upd(int, int, int, int, int, int)':
tourism.cpp:84:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   84 |     int mid=l+r>>1;
      |             ~^~
tourism.cpp: In function 'int get1(int, int, int, int, int)':
tourism.cpp:96:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   96 |     int mid=l+r>>1;
      |             ~^~
tourism.cpp: In function 'void build2(int, int, int)':
tourism.cpp:150:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  150 |     int mid=l+r>>1;
      |             ~^~
tourism.cpp: In function 'int get_lca(int, int, int, int, int)':
tourism.cpp:159:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  159 |     int mid=l+r>>1;
      |             ~^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 16728 KB Output is correct
2 Correct 1 ms 16868 KB Output is correct
3 Correct 1 ms 16732 KB Output is correct
4 Correct 2 ms 16732 KB Output is correct
5 Correct 2 ms 16732 KB Output is correct
6 Correct 2 ms 16732 KB Output is correct
7 Correct 2 ms 16860 KB Output is correct
8 Correct 2 ms 16732 KB Output is correct
9 Correct 3 ms 16732 KB Output is correct
10 Correct 3 ms 16820 KB Output is correct
11 Correct 3 ms 16800 KB Output is correct
12 Correct 2 ms 16732 KB Output is correct
13 Correct 2 ms 16732 KB Output is correct
14 Correct 2 ms 16732 KB Output is correct
15 Correct 3 ms 16732 KB Output is correct
16 Correct 2 ms 16732 KB Output is correct
17 Correct 3 ms 16728 KB Output is correct
18 Correct 3 ms 16732 KB Output is correct
19 Correct 2 ms 16732 KB Output is correct
20 Correct 2 ms 16732 KB Output is correct
21 Correct 3 ms 16732 KB Output is correct
22 Correct 3 ms 16732 KB Output is correct
23 Correct 3 ms 16732 KB Output is correct
24 Correct 3 ms 16732 KB Output is correct
25 Correct 3 ms 16732 KB Output is correct
26 Correct 3 ms 16732 KB Output is correct
27 Correct 2 ms 16732 KB Output is correct
28 Correct 2 ms 16732 KB Output is correct
29 Correct 2 ms 16732 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 16728 KB Output is correct
2 Correct 1 ms 16868 KB Output is correct
3 Correct 1 ms 16732 KB Output is correct
4 Correct 2 ms 16732 KB Output is correct
5 Correct 2 ms 16732 KB Output is correct
6 Correct 2 ms 16732 KB Output is correct
7 Correct 2 ms 16860 KB Output is correct
8 Correct 2 ms 16732 KB Output is correct
9 Correct 3 ms 16732 KB Output is correct
10 Correct 3 ms 16820 KB Output is correct
11 Correct 3 ms 16800 KB Output is correct
12 Correct 2 ms 16732 KB Output is correct
13 Correct 2 ms 16732 KB Output is correct
14 Correct 2 ms 16732 KB Output is correct
15 Correct 3 ms 16732 KB Output is correct
16 Correct 2 ms 16732 KB Output is correct
17 Correct 3 ms 16728 KB Output is correct
18 Correct 3 ms 16732 KB Output is correct
19 Correct 2 ms 16732 KB Output is correct
20 Correct 2 ms 16732 KB Output is correct
21 Correct 3 ms 16732 KB Output is correct
22 Correct 3 ms 16732 KB Output is correct
23 Correct 3 ms 16732 KB Output is correct
24 Correct 3 ms 16732 KB Output is correct
25 Correct 3 ms 16732 KB Output is correct
26 Correct 3 ms 16732 KB Output is correct
27 Correct 2 ms 16732 KB Output is correct
28 Correct 2 ms 16732 KB Output is correct
29 Correct 2 ms 16732 KB Output is correct
30 Correct 16 ms 16984 KB Output is correct
31 Correct 16 ms 16988 KB Output is correct
32 Correct 26 ms 17028 KB Output is correct
33 Correct 25 ms 16988 KB Output is correct
34 Correct 25 ms 16920 KB Output is correct
35 Correct 7 ms 16988 KB Output is correct
36 Correct 6 ms 16988 KB Output is correct
37 Correct 5 ms 17028 KB Output is correct
38 Correct 18 ms 16988 KB Output is correct
39 Correct 17 ms 16988 KB Output is correct
40 Correct 17 ms 16988 KB Output is correct
41 Correct 5 ms 17088 KB Output is correct
42 Correct 6 ms 17136 KB Output is correct
43 Correct 5 ms 16988 KB Output is correct
44 Correct 19 ms 16984 KB Output is correct
45 Correct 17 ms 16984 KB Output is correct
46 Correct 19 ms 17004 KB Output is correct
47 Correct 5 ms 16988 KB Output is correct
48 Correct 6 ms 16988 KB Output is correct
49 Correct 5 ms 16988 KB Output is correct
50 Correct 24 ms 17036 KB Output is correct
51 Correct 26 ms 16988 KB Output is correct
52 Correct 28 ms 16988 KB Output is correct
53 Correct 24 ms 16988 KB Output is correct
54 Correct 26 ms 16988 KB Output is correct
55 Correct 26 ms 16988 KB Output is correct
56 Correct 4 ms 16728 KB Output is correct
57 Correct 2 ms 16988 KB Output is correct
58 Correct 4 ms 16988 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 16732 KB Output is correct
2 Correct 2 ms 16880 KB Output is correct
3 Correct 3 ms 16732 KB Output is correct
4 Execution timed out 5094 ms 24116 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 16732 KB Output is correct
2 Correct 69 ms 20080 KB Output is correct
3 Correct 116 ms 20052 KB Output is correct
4 Correct 80 ms 21424 KB Output is correct
5 Correct 80 ms 22864 KB Output is correct
6 Correct 92 ms 22868 KB Output is correct
7 Correct 117 ms 22868 KB Output is correct
8 Correct 134 ms 22868 KB Output is correct
9 Correct 139 ms 22864 KB Output is correct
10 Correct 140 ms 22868 KB Output is correct
11 Correct 138 ms 22864 KB Output is correct
12 Correct 128 ms 22864 KB Output is correct
13 Correct 120 ms 22864 KB Output is correct
14 Correct 123 ms 23128 KB Output is correct
15 Correct 132 ms 24116 KB Output is correct
16 Correct 120 ms 22876 KB Output is correct
17 Correct 118 ms 22864 KB Output is correct
18 Correct 127 ms 22820 KB Output is correct
19 Correct 72 ms 22864 KB Output is correct
20 Correct 84 ms 22868 KB Output is correct
21 Correct 91 ms 22608 KB Output is correct
22 Correct 94 ms 22868 KB Output is correct
23 Correct 102 ms 22864 KB Output is correct
24 Correct 112 ms 22700 KB Output is correct
25 Correct 120 ms 22852 KB Output is correct
26 Correct 126 ms 22872 KB Output is correct
27 Correct 144 ms 22868 KB Output is correct
28 Correct 148 ms 22860 KB Output is correct
29 Correct 162 ms 22868 KB Output is correct
30 Correct 151 ms 22796 KB Output is correct
31 Correct 156 ms 22864 KB Output is correct
32 Correct 137 ms 23120 KB Output is correct
33 Correct 138 ms 23380 KB Output is correct
34 Correct 137 ms 24304 KB Output is correct

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 16732 KB Output is correct
2 Correct 2 ms 16796 KB Output is correct
3 Correct 4 ms 16732 KB Output is correct
4 Execution timed out 5090 ms 21028 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 16728 KB Output is correct
2 Correct 1 ms 16868 KB Output is correct
3 Correct 1 ms 16732 KB Output is correct
4 Correct 2 ms 16732 KB Output is correct
5 Correct 2 ms 16732 KB Output is correct
6 Correct 2 ms 16732 KB Output is correct
7 Correct 2 ms 16860 KB Output is correct
8 Correct 2 ms 16732 KB Output is correct
9 Correct 3 ms 16732 KB Output is correct
10 Correct 3 ms 16820 KB Output is correct
11 Correct 3 ms 16800 KB Output is correct
12 Correct 2 ms 16732 KB Output is correct
13 Correct 2 ms 16732 KB Output is correct
14 Correct 2 ms 16732 KB Output is correct
15 Correct 3 ms 16732 KB Output is correct
16 Correct 2 ms 16732 KB Output is correct
17 Correct 3 ms 16728 KB Output is correct
18 Correct 3 ms 16732 KB Output is correct
19 Correct 2 ms 16732 KB Output is correct
20 Correct 2 ms 16732 KB Output is correct
21 Correct 3 ms 16732 KB Output is correct
22 Correct 3 ms 16732 KB Output is correct
23 Correct 3 ms 16732 KB Output is correct
24 Correct 3 ms 16732 KB Output is correct
25 Correct 3 ms 16732 KB Output is correct
26 Correct 3 ms 16732 KB Output is correct
27 Correct 2 ms 16732 KB Output is correct
28 Correct 2 ms 16732 KB Output is correct
29 Correct 2 ms 16732 KB Output is correct
30 Correct 16 ms 16984 KB Output is correct
31 Correct 16 ms 16988 KB Output is correct
32 Correct 26 ms 17028 KB Output is correct
33 Correct 25 ms 16988 KB Output is correct
34 Correct 25 ms 16920 KB Output is correct
35 Correct 7 ms 16988 KB Output is correct
36 Correct 6 ms 16988 KB Output is correct
37 Correct 5 ms 17028 KB Output is correct
38 Correct 18 ms 16988 KB Output is correct
39 Correct 17 ms 16988 KB Output is correct
40 Correct 17 ms 16988 KB Output is correct
41 Correct 5 ms 17088 KB Output is correct
42 Correct 6 ms 17136 KB Output is correct
43 Correct 5 ms 16988 KB Output is correct
44 Correct 19 ms 16984 KB Output is correct
45 Correct 17 ms 16984 KB Output is correct
46 Correct 19 ms 17004 KB Output is correct
47 Correct 5 ms 16988 KB Output is correct
48 Correct 6 ms 16988 KB Output is correct
49 Correct 5 ms 16988 KB Output is correct
50 Correct 24 ms 17036 KB Output is correct
51 Correct 26 ms 16988 KB Output is correct
52 Correct 28 ms 16988 KB Output is correct
53 Correct 24 ms 16988 KB Output is correct
54 Correct 26 ms 16988 KB Output is correct
55 Correct 26 ms 16988 KB Output is correct
56 Correct 4 ms 16728 KB Output is correct
57 Correct 2 ms 16988 KB Output is correct
58 Correct 4 ms 16988 KB Output is correct
59 Correct 2 ms 16732 KB Output is correct
60 Correct 2 ms 16880 KB Output is correct
61 Correct 3 ms 16732 KB Output is correct
62 Execution timed out 5094 ms 24116 KB Time limit exceeded
63 Halted 0 ms 0 KB -