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Submission #1005277

# Submission time Handle Problem Language Result Execution time Memory
1005277 2024-06-22T09:37:41 Z modwwe Tourism (JOI23_tourism) C++17
28 / 100
 5000 ms 29956 KB 
///https://www.instagram.com/_modwwe/
//#pragma GCC optimize("Ofast,unroll-loops")
//#pragma GCC target("avx2,bmi,bmi2")
#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 pre[100007];
int nxt[100007];
bool cmp(ic a,ic b)
{
    if(a.a / S != b.a / S) return (a.a < b.a);
    else if(!((a.a / S) & 1)) return (a.b < b.b);
    else return (a.b > b.b);
}
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;
    int ss3=0;
    if(t[node<<1|1].a!=0) ss3=get1(node<<1|1,mid+1,r,l1,r1);
    if(ss3!=0) return ss3;
else return get1(node<<1,l,mid,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];
    if(ss!=0)
    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;
    for(int i=1; i<=k; i++)
    {
        go(a[i].a,a[i].b);
        s3=t[1].a;
        s5=nxt[0];
        s3=c[s3];
        s3=lca2(s3,s5);
        ans[a[i].c]=s4+depth[1]-depth[s3];
    }
    for(int i=1; i<=k; i++)
        printf("%d",ans[i]),
               printf("\n");
}

/*
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:46:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   46 | main()
      | ^~~~
tourism.cpp: In function 'void upd(int, int, int, int, int, int)':
tourism.cpp:86:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   86 |     int mid=l+r>>1;
      |             ~^~
tourism.cpp: In function 'int get1(int, int, int, int, int)':
tourism.cpp:97:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   97 |     int mid=l+r>>1;
      |             ~^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 14684 KB Output is correct
2 Correct 1 ms 14684 KB Output is correct
3 Correct 1 ms 14684 KB Output is correct
4 Correct 2 ms 14684 KB Output is correct
5 Correct 2 ms 14768 KB Output is correct
6 Correct 2 ms 14684 KB Output is correct
7 Correct 2 ms 14684 KB Output is correct
8 Correct 2 ms 14680 KB Output is correct
9 Correct 2 ms 14728 KB Output is correct
10 Correct 2 ms 14684 KB Output is correct
11 Correct 3 ms 14684 KB Output is correct
12 Correct 2 ms 14684 KB Output is correct
13 Correct 2 ms 14684 KB Output is correct
14 Correct 2 ms 14684 KB Output is correct
15 Correct 2 ms 14684 KB Output is correct
16 Correct 2 ms 14684 KB Output is correct
17 Correct 2 ms 14684 KB Output is correct
18 Correct 2 ms 14684 KB Output is correct
19 Correct 2 ms 14684 KB Output is correct
20 Correct 2 ms 14684 KB Output is correct
21 Correct 2 ms 14684 KB Output is correct
22 Correct 2 ms 14684 KB Output is correct
23 Correct 2 ms 14860 KB Output is correct
24 Correct 2 ms 14684 KB Output is correct
25 Correct 2 ms 14684 KB Output is correct
26 Correct 2 ms 14684 KB Output is correct
27 Correct 1 ms 14684 KB Output is correct
28 Correct 1 ms 14684 KB Output is correct
29 Correct 2 ms 14684 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 14684 KB Output is correct
2 Correct 1 ms 14684 KB Output is correct
3 Correct 1 ms 14684 KB Output is correct
4 Correct 2 ms 14684 KB Output is correct
5 Correct 2 ms 14768 KB Output is correct
6 Correct 2 ms 14684 KB Output is correct
7 Correct 2 ms 14684 KB Output is correct
8 Correct 2 ms 14680 KB Output is correct
9 Correct 2 ms 14728 KB Output is correct
10 Correct 2 ms 14684 KB Output is correct
11 Correct 3 ms 14684 KB Output is correct
12 Correct 2 ms 14684 KB Output is correct
13 Correct 2 ms 14684 KB Output is correct
14 Correct 2 ms 14684 KB Output is correct
15 Correct 2 ms 14684 KB Output is correct
16 Correct 2 ms 14684 KB Output is correct
17 Correct 2 ms 14684 KB Output is correct
18 Correct 2 ms 14684 KB Output is correct
19 Correct 2 ms 14684 KB Output is correct
20 Correct 2 ms 14684 KB Output is correct
21 Correct 2 ms 14684 KB Output is correct
22 Correct 2 ms 14684 KB Output is correct
23 Correct 2 ms 14860 KB Output is correct
24 Correct 2 ms 14684 KB Output is correct
25 Correct 2 ms 14684 KB Output is correct
26 Correct 2 ms 14684 KB Output is correct
27 Correct 1 ms 14684 KB Output is correct
28 Correct 1 ms 14684 KB Output is correct
29 Correct 2 ms 14684 KB Output is correct
30 Correct 10 ms 14684 KB Output is correct
31 Correct 13 ms 14684 KB Output is correct
32 Correct 18 ms 14936 KB Output is correct
33 Correct 16 ms 14936 KB Output is correct
34 Correct 15 ms 15192 KB Output is correct
35 Correct 5 ms 14940 KB Output is correct
36 Correct 5 ms 14940 KB Output is correct
37 Correct 5 ms 14940 KB Output is correct
38 Correct 12 ms 14940 KB Output is correct
39 Correct 11 ms 14936 KB Output is correct
40 Correct 11 ms 15044 KB Output is correct
41 Correct 4 ms 14940 KB Output is correct
42 Correct 5 ms 14940 KB Output is correct
43 Correct 5 ms 15024 KB Output is correct
44 Correct 12 ms 14940 KB Output is correct
45 Correct 12 ms 14976 KB Output is correct
46 Correct 12 ms 14936 KB Output is correct
47 Correct 4 ms 14940 KB Output is correct
48 Correct 4 ms 14940 KB Output is correct
49 Correct 4 ms 14940 KB Output is correct
50 Correct 17 ms 14940 KB Output is correct
51 Correct 15 ms 14940 KB Output is correct
52 Correct 15 ms 14940 KB Output is correct
53 Correct 17 ms 14960 KB Output is correct
54 Correct 17 ms 14940 KB Output is correct
55 Correct 17 ms 14880 KB Output is correct
56 Correct 2 ms 14684 KB Output is correct
57 Correct 2 ms 14684 KB Output is correct
58 Correct 4 ms 14764 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 14684 KB Output is correct
2 Correct 2 ms 14684 KB Output is correct
3 Correct 3 ms 14684 KB Output is correct
4 Correct 3658 ms 22024 KB Output is correct
5 Correct 2179 ms 25424 KB Output is correct
6 Correct 3372 ms 26372 KB Output is correct
7 Execution timed out 5059 ms 29956 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 14684 KB Output is correct
2 Correct 107 ms 17844 KB Output is correct
3 Correct 162 ms 18156 KB Output is correct
4 Correct 130 ms 19332 KB Output is correct
5 Correct 69 ms 20560 KB Output is correct
6 Correct 88 ms 20568 KB Output is correct
7 Correct 115 ms 20560 KB Output is correct
8 Correct 129 ms 20452 KB Output is correct
9 Correct 140 ms 20560 KB Output is correct
10 Correct 129 ms 20596 KB Output is correct
11 Correct 189 ms 20560 KB Output is correct
12 Correct 208 ms 20560 KB Output is correct
13 Correct 205 ms 20672 KB Output is correct
14 Correct 195 ms 20572 KB Output is correct
15 Correct 192 ms 23376 KB Output is correct
16 Correct 161 ms 20820 KB Output is correct
17 Correct 149 ms 20568 KB Output is correct
18 Correct 143 ms 20560 KB Output is correct
19 Correct 61 ms 20572 KB Output is correct
20 Correct 71 ms 20820 KB Output is correct
21 Correct 69 ms 20568 KB Output is correct
22 Correct 74 ms 20560 KB Output is correct
23 Correct 82 ms 20552 KB Output is correct
24 Correct 86 ms 20572 KB Output is correct
25 Correct 88 ms 20660 KB Output is correct
26 Correct 104 ms 20572 KB Output is correct
27 Correct 153 ms 20684 KB Output is correct
28 Correct 193 ms 20652 KB Output is correct
29 Correct 210 ms 20692 KB Output is correct
30 Correct 211 ms 20704 KB Output is correct
31 Correct 243 ms 20560 KB Output is correct
32 Correct 217 ms 20556 KB Output is correct
33 Correct 226 ms 20820 KB Output is correct
34 Correct 215 ms 23376 KB Output is correct

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 14680 KB Output is correct
2 Correct 2 ms 14684 KB Output is correct
3 Correct 3 ms 14684 KB Output is correct
4 Execution timed out 5096 ms 20452 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 14684 KB Output is correct
2 Correct 1 ms 14684 KB Output is correct
3 Correct 1 ms 14684 KB Output is correct
4 Correct 2 ms 14684 KB Output is correct
5 Correct 2 ms 14768 KB Output is correct
6 Correct 2 ms 14684 KB Output is correct
7 Correct 2 ms 14684 KB Output is correct
8 Correct 2 ms 14680 KB Output is correct
9 Correct 2 ms 14728 KB Output is correct
10 Correct 2 ms 14684 KB Output is correct
11 Correct 3 ms 14684 KB Output is correct
12 Correct 2 ms 14684 KB Output is correct
13 Correct 2 ms 14684 KB Output is correct
14 Correct 2 ms 14684 KB Output is correct
15 Correct 2 ms 14684 KB Output is correct
16 Correct 2 ms 14684 KB Output is correct
17 Correct 2 ms 14684 KB Output is correct
18 Correct 2 ms 14684 KB Output is correct
19 Correct 2 ms 14684 KB Output is correct
20 Correct 2 ms 14684 KB Output is correct
21 Correct 2 ms 14684 KB Output is correct
22 Correct 2 ms 14684 KB Output is correct
23 Correct 2 ms 14860 KB Output is correct
24 Correct 2 ms 14684 KB Output is correct
25 Correct 2 ms 14684 KB Output is correct
26 Correct 2 ms 14684 KB Output is correct
27 Correct 1 ms 14684 KB Output is correct
28 Correct 1 ms 14684 KB Output is correct
29 Correct 2 ms 14684 KB Output is correct
30 Correct 10 ms 14684 KB Output is correct
31 Correct 13 ms 14684 KB Output is correct
32 Correct 18 ms 14936 KB Output is correct
33 Correct 16 ms 14936 KB Output is correct
34 Correct 15 ms 15192 KB Output is correct
35 Correct 5 ms 14940 KB Output is correct
36 Correct 5 ms 14940 KB Output is correct
37 Correct 5 ms 14940 KB Output is correct
38 Correct 12 ms 14940 KB Output is correct
39 Correct 11 ms 14936 KB Output is correct
40 Correct 11 ms 15044 KB Output is correct
41 Correct 4 ms 14940 KB Output is correct
42 Correct 5 ms 14940 KB Output is correct
43 Correct 5 ms 15024 KB Output is correct
44 Correct 12 ms 14940 KB Output is correct
45 Correct 12 ms 14976 KB Output is correct
46 Correct 12 ms 14936 KB Output is correct
47 Correct 4 ms 14940 KB Output is correct
48 Correct 4 ms 14940 KB Output is correct
49 Correct 4 ms 14940 KB Output is correct
50 Correct 17 ms 14940 KB Output is correct
51 Correct 15 ms 14940 KB Output is correct
52 Correct 15 ms 14940 KB Output is correct
53 Correct 17 ms 14960 KB Output is correct
54 Correct 17 ms 14940 KB Output is correct
55 Correct 17 ms 14880 KB Output is correct
56 Correct 2 ms 14684 KB Output is correct
57 Correct 2 ms 14684 KB Output is correct
58 Correct 4 ms 14764 KB Output is correct
59 Correct 2 ms 14684 KB Output is correct
60 Correct 2 ms 14684 KB Output is correct
61 Correct 3 ms 14684 KB Output is correct
62 Correct 3658 ms 22024 KB Output is correct
63 Correct 2179 ms 25424 KB Output is correct
64 Correct 3372 ms 26372 KB Output is correct
65 Execution timed out 5059 ms 29956 KB Time limit exceeded
66 Halted 0 ms 0 KB -