oj.uz

Submission #1005615

# Submission time Handle Problem Language Result Execution time Memory
1005615 2024-06-22T16:12:42 Z modwwe Tourism (JOI23_tourism) C++14
35 / 100
 5000 ms 23124 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();
}
int 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];
int sl[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)
    {
        if(cc==1) t[node]=l;
         else t[node]=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]=max(t[node<<1],t[node<<1|1]);
}
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];
 
    int mid=l+r>>1;
 int ss3=0;
    if(t[node<<1|1]!=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);
    sl[x]++;
    if(sl[x]==1)
    upd(1,1,n,euler[x].a,euler[x].a,1);
    if(d[x]!=0||sl[x]>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)
{sl[x]--;
 if(sl[x]==0)
    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(sl[x]>=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()
{
  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];
        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:85:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   85 |     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;
      |             ~^~
tourism.cpp: In function 'void del(int)':
tourism.cpp:194:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  194 |  if(sl[x]==0)
      |  ^~
tourism.cpp:196:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
  196 |     s5=d[x];
      |     ^~

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 1 ms 12636 KB Output is correct
4 Correct 2 ms 12636 KB Output is correct
5 Correct 2 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 3 ms 12636 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 2 ms 12636 KB Output is correct
10 Correct 2 ms 12820 KB Output is correct
11 Correct 3 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 3 ms 12636 KB Output is correct
19 Correct 3 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 12636 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 12816 KB Output is correct
26 Correct 3 ms 12636 KB Output is correct
27 Correct 2 ms 12636 KB Output is correct
28 Correct 3 ms 12636 KB Output is correct
29 Correct 3 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 1 ms 12636 KB Output is correct
4 Correct 2 ms 12636 KB Output is correct
5 Correct 2 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 3 ms 12636 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 2 ms 12636 KB Output is correct
10 Correct 2 ms 12820 KB Output is correct
11 Correct 3 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 3 ms 12636 KB Output is correct
19 Correct 3 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 12636 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 12816 KB Output is correct
26 Correct 3 ms 12636 KB Output is correct
27 Correct 2 ms 12636 KB Output is correct
28 Correct 3 ms 12636 KB Output is correct
29 Correct 3 ms 12636 KB Output is correct
30 Correct 9 ms 12888 KB Output is correct
31 Correct 9 ms 12896 KB Output is correct
32 Correct 12 ms 12892 KB Output is correct
33 Correct 17 ms 12892 KB Output is correct
34 Correct 12 ms 12892 KB Output is correct
35 Correct 3 ms 12892 KB Output is correct
36 Correct 4 ms 12892 KB Output is correct
37 Correct 4 ms 12892 KB Output is correct
38 Correct 10 ms 12964 KB Output is correct
39 Correct 10 ms 12892 KB Output is correct
40 Correct 13 ms 12892 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 3 ms 12892 KB Output is correct
43 Correct 6 ms 12888 KB Output is correct
44 Correct 10 ms 12944 KB Output is correct
45 Correct 14 ms 12892 KB Output is correct
46 Correct 11 ms 12888 KB Output is correct
47 Correct 6 ms 12892 KB Output is correct
48 Correct 3 ms 12892 KB Output is correct
49 Correct 4 ms 12892 KB Output is correct
50 Correct 15 ms 12892 KB Output is correct
51 Correct 10 ms 12892 KB Output is correct
52 Correct 11 ms 12924 KB Output is correct
53 Correct 10 ms 12888 KB Output is correct
54 Correct 13 ms 12892 KB Output is correct
55 Correct 11 ms 12928 KB Output is correct
56 Correct 3 ms 12636 KB Output is correct
57 Correct 2 ms 12892 KB Output is correct
58 Correct 4 ms 12888 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 1 ms 12636 KB Output is correct
3 Correct 4 ms 12636 KB Output is correct
4 Correct 2787 ms 18628 KB Output is correct
5 Correct 2044 ms 20816 KB Output is correct
6 Correct 2902 ms 21480 KB Output is correct
7 Correct 4144 ms 22884 KB Output is correct
8 Correct 4148 ms 22884 KB Output is correct
9 Correct 4238 ms 22884 KB Output is correct
10 Correct 4195 ms 22888 KB Output is correct
11 Correct 4162 ms 22864 KB Output is correct
12 Correct 499 ms 23124 KB Output is correct
13 Correct 497 ms 22836 KB Output is correct
14 Correct 501 ms 22864 KB Output is correct
15 Correct 42 ms 21328 KB Output is correct
16 Correct 152 ms 22356 KB Output is correct
17 Correct 129 ms 13912 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 85 ms 15452 KB Output is correct
3 Correct 130 ms 15960 KB Output is correct
4 Correct 108 ms 16728 KB Output is correct
5 Correct 58 ms 18000 KB Output is correct
6 Correct 72 ms 18020 KB Output is correct
7 Correct 86 ms 18000 KB Output is correct
8 Correct 100 ms 18012 KB Output is correct
9 Correct 105 ms 17788 KB Output is correct
10 Correct 107 ms 18020 KB Output is correct
11 Correct 157 ms 18012 KB Output is correct
12 Correct 154 ms 18004 KB Output is correct
13 Correct 183 ms 18004 KB Output is correct
14 Correct 157 ms 18256 KB Output is correct
15 Correct 165 ms 19284 KB Output is correct
16 Correct 132 ms 18000 KB Output is correct
17 Correct 140 ms 18268 KB Output is correct
18 Correct 128 ms 18008 KB Output is correct
19 Correct 57 ms 17756 KB Output is correct
20 Correct 60 ms 17756 KB Output is correct
21 Correct 67 ms 17800 KB Output is correct
22 Correct 73 ms 17756 KB Output is correct
23 Correct 84 ms 17748 KB Output is correct
24 Correct 86 ms 17744 KB Output is correct
25 Correct 105 ms 18004 KB Output is correct
26 Correct 113 ms 17756 KB Output is correct
27 Correct 160 ms 17744 KB Output is correct
28 Correct 190 ms 17752 KB Output is correct
29 Correct 224 ms 18000 KB Output is correct
30 Correct 255 ms 18000 KB Output is correct
31 Correct 238 ms 18092 KB Output is correct
32 Correct 216 ms 18260 KB Output is correct
33 Correct 222 ms 18520 KB Output is correct
34 Correct 218 ms 19284 KB Output is correct

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12632 KB Output is correct
2 Correct 2 ms 12636 KB Output is correct
3 Correct 3 ms 12636 KB Output is correct
4 Correct 3919 ms 17268 KB Output is correct
5 Correct 3974 ms 17172 KB Output is correct
6 Execution timed out 5056 ms 18148 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 1 ms 12636 KB Output is correct
4 Correct 2 ms 12636 KB Output is correct
5 Correct 2 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 3 ms 12636 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 2 ms 12636 KB Output is correct
10 Correct 2 ms 12820 KB Output is correct
11 Correct 3 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 3 ms 12636 KB Output is correct
19 Correct 3 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 12636 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 12816 KB Output is correct
26 Correct 3 ms 12636 KB Output is correct
27 Correct 2 ms 12636 KB Output is correct
28 Correct 3 ms 12636 KB Output is correct
29 Correct 3 ms 12636 KB Output is correct
30 Correct 9 ms 12888 KB Output is correct
31 Correct 9 ms 12896 KB Output is correct
32 Correct 12 ms 12892 KB Output is correct
33 Correct 17 ms 12892 KB Output is correct
34 Correct 12 ms 12892 KB Output is correct
35 Correct 3 ms 12892 KB Output is correct
36 Correct 4 ms 12892 KB Output is correct
37 Correct 4 ms 12892 KB Output is correct
38 Correct 10 ms 12964 KB Output is correct
39 Correct 10 ms 12892 KB Output is correct
40 Correct 13 ms 12892 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 3 ms 12892 KB Output is correct
43 Correct 6 ms 12888 KB Output is correct
44 Correct 10 ms 12944 KB Output is correct
45 Correct 14 ms 12892 KB Output is correct
46 Correct 11 ms 12888 KB Output is correct
47 Correct 6 ms 12892 KB Output is correct
48 Correct 3 ms 12892 KB Output is correct
49 Correct 4 ms 12892 KB Output is correct
50 Correct 15 ms 12892 KB Output is correct
51 Correct 10 ms 12892 KB Output is correct
52 Correct 11 ms 12924 KB Output is correct
53 Correct 10 ms 12888 KB Output is correct
54 Correct 13 ms 12892 KB Output is correct
55 Correct 11 ms 12928 KB Output is correct
56 Correct 3 ms 12636 KB Output is correct
57 Correct 2 ms 12892 KB Output is correct
58 Correct 4 ms 12888 KB Output is correct
59 Correct 2 ms 12636 KB Output is correct
60 Correct 1 ms 12636 KB Output is correct
61 Correct 4 ms 12636 KB Output is correct
62 Correct 2787 ms 18628 KB Output is correct
63 Correct 2044 ms 20816 KB Output is correct
64 Correct 2902 ms 21480 KB Output is correct
65 Correct 4144 ms 22884 KB Output is correct
66 Correct 4148 ms 22884 KB Output is correct
67 Correct 4238 ms 22884 KB Output is correct
68 Correct 4195 ms 22888 KB Output is correct
69 Correct 4162 ms 22864 KB Output is correct
70 Correct 499 ms 23124 KB Output is correct
71 Correct 497 ms 22836 KB Output is correct
72 Correct 501 ms 22864 KB Output is correct
73 Correct 42 ms 21328 KB Output is correct
74 Correct 152 ms 22356 KB Output is correct
75 Correct 129 ms 13912 KB Output is correct
76 Correct 2 ms 12636 KB Output is correct
77 Correct 85 ms 15452 KB Output is correct
78 Correct 130 ms 15960 KB Output is correct
79 Correct 108 ms 16728 KB Output is correct
80 Correct 58 ms 18000 KB Output is correct
81 Correct 72 ms 18020 KB Output is correct
82 Correct 86 ms 18000 KB Output is correct
83 Correct 100 ms 18012 KB Output is correct
84 Correct 105 ms 17788 KB Output is correct
85 Correct 107 ms 18020 KB Output is correct
86 Correct 157 ms 18012 KB Output is correct
87 Correct 154 ms 18004 KB Output is correct
88 Correct 183 ms 18004 KB Output is correct
89 Correct 157 ms 18256 KB Output is correct
90 Correct 165 ms 19284 KB Output is correct
91 Correct 132 ms 18000 KB Output is correct
92 Correct 140 ms 18268 KB Output is correct
93 Correct 128 ms 18008 KB Output is correct
94 Correct 57 ms 17756 KB Output is correct
95 Correct 60 ms 17756 KB Output is correct
96 Correct 67 ms 17800 KB Output is correct
97 Correct 73 ms 17756 KB Output is correct
98 Correct 84 ms 17748 KB Output is correct
99 Correct 86 ms 17744 KB Output is correct
100 Correct 105 ms 18004 KB Output is correct
101 Correct 113 ms 17756 KB Output is correct
102 Correct 160 ms 17744 KB Output is correct
103 Correct 190 ms 17752 KB Output is correct
104 Correct 224 ms 18000 KB Output is correct
105 Correct 255 ms 18000 KB Output is correct
106 Correct 238 ms 18092 KB Output is correct
107 Correct 216 ms 18260 KB Output is correct
108 Correct 222 ms 18520 KB Output is correct
109 Correct 218 ms 19284 KB Output is correct
110 Correct 2 ms 12632 KB Output is correct
111 Correct 2 ms 12636 KB Output is correct
112 Correct 3 ms 12636 KB Output is correct
113 Correct 3919 ms 17268 KB Output is correct
114 Correct 3974 ms 17172 KB Output is correct
115 Execution timed out 5056 ms 18148 KB Time limit exceeded
116 Halted 0 ms 0 KB -