oj.uz

Submission #1005284

# Submission time Handle Problem Language Result Execution time Memory
1005284 2024-06-22T09:45:08 Z modwwe Tourism (JOI23_tourism) C++17
35 / 100
 5000 ms 23636 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[100007];
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];
    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--;
    }

}
int cinn()
{
    char c;
    while (c = getchar(), c < '0' || c > '9');
    int x = c - '0';
    while (c = getchar(), c >= '0' && c <= '9')
        x = x * 10 + c - '0';
    return x;
}
void phongbeo()
{
   n=cinn();
     m=cinn();
     k=cinn();
    S=sqrt(m);
    for(int i=1; i<n; i++)
        l=cinn(),r=cinn(),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++)
        b[i]=cinn();
    for(int i=1; i<=k; i++)
        a[i].a=cinn(),a[i].b=cinn(),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:98:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   98 |     int mid=l+r>>1;
      |             ~^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 2 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12800 KB Output is correct
5 Correct 2 ms 12784 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 2 ms 12812 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 4 ms 12636 KB Output is correct
10 Correct 2 ms 12636 KB Output is correct
11 Correct 2 ms 12636 KB Output is correct
12 Correct 2 ms 12636 KB Output is correct
13 Correct 2 ms 12636 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 12636 KB Output is correct
16 Correct 2 ms 12636 KB Output is correct
17 Correct 2 ms 12636 KB Output is correct
18 Correct 2 ms 12636 KB Output is correct
19 Correct 2 ms 12636 KB Output is correct
20 Correct 2 ms 12636 KB Output is correct
21 Correct 2 ms 12636 KB Output is correct
22 Correct 2 ms 12820 KB Output is correct
23 Correct 2 ms 12636 KB Output is correct
24 Correct 2 ms 12636 KB Output is correct
25 Correct 2 ms 12636 KB Output is correct
26 Correct 2 ms 12636 KB Output is correct
27 Correct 2 ms 12636 KB Output is correct
28 Correct 2 ms 12636 KB Output is correct
29 Correct 2 ms 12636 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 2 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12800 KB Output is correct
5 Correct 2 ms 12784 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 2 ms 12812 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 4 ms 12636 KB Output is correct
10 Correct 2 ms 12636 KB Output is correct
11 Correct 2 ms 12636 KB Output is correct
12 Correct 2 ms 12636 KB Output is correct
13 Correct 2 ms 12636 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 12636 KB Output is correct
16 Correct 2 ms 12636 KB Output is correct
17 Correct 2 ms 12636 KB Output is correct
18 Correct 2 ms 12636 KB Output is correct
19 Correct 2 ms 12636 KB Output is correct
20 Correct 2 ms 12636 KB Output is correct
21 Correct 2 ms 12636 KB Output is correct
22 Correct 2 ms 12820 KB Output is correct
23 Correct 2 ms 12636 KB Output is correct
24 Correct 2 ms 12636 KB Output is correct
25 Correct 2 ms 12636 KB Output is correct
26 Correct 2 ms 12636 KB Output is correct
27 Correct 2 ms 12636 KB Output is correct
28 Correct 2 ms 12636 KB Output is correct
29 Correct 2 ms 12636 KB Output is correct
30 Correct 9 ms 12888 KB Output is correct
31 Correct 10 ms 12892 KB Output is correct
32 Correct 13 ms 12892 KB Output is correct
33 Correct 12 ms 12892 KB Output is correct
34 Correct 13 ms 12892 KB Output is correct
35 Correct 4 ms 12924 KB Output is correct
36 Correct 5 ms 12892 KB Output is correct
37 Correct 4 ms 12892 KB Output is correct
38 Correct 11 ms 12892 KB Output is correct
39 Correct 11 ms 12972 KB Output is correct
40 Correct 10 ms 12888 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 3 ms 12892 KB Output is correct
43 Correct 4 ms 12892 KB Output is correct
44 Correct 12 ms 12892 KB Output is correct
45 Correct 12 ms 12892 KB Output is correct
46 Correct 13 ms 12944 KB Output is correct
47 Correct 4 ms 12892 KB Output is correct
48 Correct 3 ms 12892 KB Output is correct
49 Correct 4 ms 12816 KB Output is correct
50 Correct 12 ms 12936 KB Output is correct
51 Correct 12 ms 12892 KB Output is correct
52 Correct 12 ms 12892 KB Output is correct
53 Correct 12 ms 12892 KB Output is correct
54 Correct 15 ms 12932 KB Output is correct
55 Correct 10 ms 12936 KB Output is correct
56 Correct 2 ms 12636 KB Output is correct
57 Correct 2 ms 12892 KB Output is correct
58 Correct 4 ms 12892 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 2 ms 12636 KB Output is correct
3 Correct 3 ms 12636 KB Output is correct
4 Correct 3595 ms 18872 KB Output is correct
5 Correct 2175 ms 21620 KB Output is correct
6 Correct 3088 ms 22096 KB Output is correct
7 Correct 4796 ms 23528 KB Output is correct
8 Correct 4850 ms 23528 KB Output is correct
9 Correct 4958 ms 23528 KB Output is correct
10 Correct 4675 ms 23636 KB Output is correct
11 Correct 4724 ms 23520 KB Output is correct
12 Correct 898 ms 23528 KB Output is correct
13 Correct 814 ms 23376 KB Output is correct
14 Correct 836 ms 23520 KB Output is correct
15 Correct 36 ms 20828 KB Output is correct
16 Correct 129 ms 23124 KB Output is correct
17 Correct 139 ms 13916 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12632 KB Output is correct
2 Correct 77 ms 15972 KB Output is correct
3 Correct 126 ms 16220 KB Output is correct
4 Correct 98 ms 17456 KB Output is correct
5 Correct 53 ms 18568 KB Output is correct
6 Correct 65 ms 18516 KB Output is correct
7 Correct 84 ms 18516 KB Output is correct
8 Correct 92 ms 18524 KB Output is correct
9 Correct 91 ms 18524 KB Output is correct
10 Correct 95 ms 18524 KB Output is correct
11 Correct 137 ms 18524 KB Output is correct
12 Correct 158 ms 18696 KB Output is correct
13 Correct 150 ms 18776 KB Output is correct
14 Correct 148 ms 19012 KB Output is correct
15 Correct 134 ms 19800 KB Output is correct
16 Correct 118 ms 19036 KB Output is correct
17 Correct 116 ms 18780 KB Output is correct
18 Correct 112 ms 18776 KB Output is correct
19 Correct 42 ms 18520 KB Output is correct
20 Correct 54 ms 18524 KB Output is correct
21 Correct 65 ms 18580 KB Output is correct
22 Correct 58 ms 18520 KB Output is correct
23 Correct 66 ms 18600 KB Output is correct
24 Correct 74 ms 18520 KB Output is correct
25 Correct 93 ms 18524 KB Output is correct
26 Correct 105 ms 18768 KB Output is correct
27 Correct 130 ms 18520 KB Output is correct
28 Correct 164 ms 18604 KB Output is correct
29 Correct 178 ms 18524 KB Output is correct
30 Correct 214 ms 18676 KB Output is correct
31 Correct 223 ms 18772 KB Output is correct
32 Correct 190 ms 18716 KB Output is correct
33 Correct 206 ms 19284 KB Output is correct
34 Correct 193 ms 19804 KB Output is correct

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 2 ms 12636 KB Output is correct
3 Correct 3 ms 12812 KB Output is correct
4 Correct 4667 ms 17560 KB Output is correct
5 Correct 4558 ms 17584 KB Output is correct
6 Execution timed out 5048 ms 19024 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 2 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12800 KB Output is correct
5 Correct 2 ms 12784 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 2 ms 12812 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 4 ms 12636 KB Output is correct
10 Correct 2 ms 12636 KB Output is correct
11 Correct 2 ms 12636 KB Output is correct
12 Correct 2 ms 12636 KB Output is correct
13 Correct 2 ms 12636 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 12636 KB Output is correct
16 Correct 2 ms 12636 KB Output is correct
17 Correct 2 ms 12636 KB Output is correct
18 Correct 2 ms 12636 KB Output is correct
19 Correct 2 ms 12636 KB Output is correct
20 Correct 2 ms 12636 KB Output is correct
21 Correct 2 ms 12636 KB Output is correct
22 Correct 2 ms 12820 KB Output is correct
23 Correct 2 ms 12636 KB Output is correct
24 Correct 2 ms 12636 KB Output is correct
25 Correct 2 ms 12636 KB Output is correct
26 Correct 2 ms 12636 KB Output is correct
27 Correct 2 ms 12636 KB Output is correct
28 Correct 2 ms 12636 KB Output is correct
29 Correct 2 ms 12636 KB Output is correct
30 Correct 9 ms 12888 KB Output is correct
31 Correct 10 ms 12892 KB Output is correct
32 Correct 13 ms 12892 KB Output is correct
33 Correct 12 ms 12892 KB Output is correct
34 Correct 13 ms 12892 KB Output is correct
35 Correct 4 ms 12924 KB Output is correct
36 Correct 5 ms 12892 KB Output is correct
37 Correct 4 ms 12892 KB Output is correct
38 Correct 11 ms 12892 KB Output is correct
39 Correct 11 ms 12972 KB Output is correct
40 Correct 10 ms 12888 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 3 ms 12892 KB Output is correct
43 Correct 4 ms 12892 KB Output is correct
44 Correct 12 ms 12892 KB Output is correct
45 Correct 12 ms 12892 KB Output is correct
46 Correct 13 ms 12944 KB Output is correct
47 Correct 4 ms 12892 KB Output is correct
48 Correct 3 ms 12892 KB Output is correct
49 Correct 4 ms 12816 KB Output is correct
50 Correct 12 ms 12936 KB Output is correct
51 Correct 12 ms 12892 KB Output is correct
52 Correct 12 ms 12892 KB Output is correct
53 Correct 12 ms 12892 KB Output is correct
54 Correct 15 ms 12932 KB Output is correct
55 Correct 10 ms 12936 KB Output is correct
56 Correct 2 ms 12636 KB Output is correct
57 Correct 2 ms 12892 KB Output is correct
58 Correct 4 ms 12892 KB Output is correct
59 Correct 2 ms 12636 KB Output is correct
60 Correct 2 ms 12636 KB Output is correct
61 Correct 3 ms 12636 KB Output is correct
62 Correct 3595 ms 18872 KB Output is correct
63 Correct 2175 ms 21620 KB Output is correct
64 Correct 3088 ms 22096 KB Output is correct
65 Correct 4796 ms 23528 KB Output is correct
66 Correct 4850 ms 23528 KB Output is correct
67 Correct 4958 ms 23528 KB Output is correct
68 Correct 4675 ms 23636 KB Output is correct
69 Correct 4724 ms 23520 KB Output is correct
70 Correct 898 ms 23528 KB Output is correct
71 Correct 814 ms 23376 KB Output is correct
72 Correct 836 ms 23520 KB Output is correct
73 Correct 36 ms 20828 KB Output is correct
74 Correct 129 ms 23124 KB Output is correct
75 Correct 139 ms 13916 KB Output is correct
76 Correct 2 ms 12632 KB Output is correct
77 Correct 77 ms 15972 KB Output is correct
78 Correct 126 ms 16220 KB Output is correct
79 Correct 98 ms 17456 KB Output is correct
80 Correct 53 ms 18568 KB Output is correct
81 Correct 65 ms 18516 KB Output is correct
82 Correct 84 ms 18516 KB Output is correct
83 Correct 92 ms 18524 KB Output is correct
84 Correct 91 ms 18524 KB Output is correct
85 Correct 95 ms 18524 KB Output is correct
86 Correct 137 ms 18524 KB Output is correct
87 Correct 158 ms 18696 KB Output is correct
88 Correct 150 ms 18776 KB Output is correct
89 Correct 148 ms 19012 KB Output is correct
90 Correct 134 ms 19800 KB Output is correct
91 Correct 118 ms 19036 KB Output is correct
92 Correct 116 ms 18780 KB Output is correct
93 Correct 112 ms 18776 KB Output is correct
94 Correct 42 ms 18520 KB Output is correct
95 Correct 54 ms 18524 KB Output is correct
96 Correct 65 ms 18580 KB Output is correct
97 Correct 58 ms 18520 KB Output is correct
98 Correct 66 ms 18600 KB Output is correct
99 Correct 74 ms 18520 KB Output is correct
100 Correct 93 ms 18524 KB Output is correct
101 Correct 105 ms 18768 KB Output is correct
102 Correct 130 ms 18520 KB Output is correct
103 Correct 164 ms 18604 KB Output is correct
104 Correct 178 ms 18524 KB Output is correct
105 Correct 214 ms 18676 KB Output is correct
106 Correct 223 ms 18772 KB Output is correct
107 Correct 190 ms 18716 KB Output is correct
108 Correct 206 ms 19284 KB Output is correct
109 Correct 193 ms 19804 KB Output is correct
110 Correct 2 ms 12636 KB Output is correct
111 Correct 2 ms 12636 KB Output is correct
112 Correct 3 ms 12812 KB Output is correct
113 Correct 4667 ms 17560 KB Output is correct
114 Correct 4558 ms 17584 KB Output is correct
115 Execution timed out 5048 ms 19024 KB Time limit exceeded
116 Halted 0 ms 0 KB -