oj.uz

Submission #993430

# Submission time Handle Problem Language Result Execution time Memory
993430 2024-06-05T15:37:59 Z modwwe Long Mansion (JOI17_long_mansion) C++17
100 / 100
 846 ms 103800 KB 
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx,avx2,sse,sse2")
#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=998244353;
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,b,c,d;
};
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();
}
struct IT
{
    int t[2000001];
    void upd(int node,int l,int r,int l1,int r1,int c )
    {
        if(l1>r1) return;
        if(l>r1||r<l1)return;
        if(l>=l1&&r<=r1)
        {
            t[node]=c;
            return;
        }
        if(t[node]!=0)
        {
            t[node<<1]=t[node];
            t[node<<1|1]=t[node];
            t[node]=0;
        }
        int mid=l+r>>1;
        upd(node<<1,l,mid,l1,r1,c);
        upd(node<<1|1,mid+1,r,l1,r1,c);
    }
    int get(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];
        if(t[node]!=0)
        {
            t[node<<1]=t[node];
            t[node<<1|1]=t[node];
            t[node]=0;
        }
        int mid=l+r>>1;
        return get(node<<1,l,mid,l1,r1)+get(node<<1|1,mid+1,r,l1,r1);
    }
} st1,st2;
struct IT2
{
    int  t[2000001];
    void reset(int node,int l,int r)
    {
        t[node]=n+1;
        if(l==r) return;
        int mid=l+r>>1;
        reset(node<<1,l,mid);
        reset(node<<1|1,mid+1,r);
    }
    void upd(int node,int l,int r,int l1,int r1)
    {
        if(l>r1||r<l1) return ;
        if(l>=l1&&r<=r1)
        {
            t[node]=l;
            return;
        }
        int mid=l+r>>1;
        upd(node<<1,l,mid,l1,r1);
        upd(node<<1|1,mid+1,r,l1,r1);
        t[node]=max(t[node<<1],t[node<<1|1]);
    }
    void upd2(int node,int l,int r,int l1,int r1)
    {
        if(l>r1||r<l1) return ;
        if(l>=l1&&r<=r1)
        {
            t[node]=l;
            return;
        }
        int mid=l+r>>1;
        upd2(node<<1,l,mid,l1,r1);
        upd2(node<<1|1,mid+1,r,l1,r1);
        t[node]=min(t[node<<1],t[node<<1|1]);
    }
    int get2(int node,int l,int r,int l1,int r1)
    {
        if(l>r1||r<l1) return n+1;
        if(l>=l1&&r<=r1)return t[node];
        int mid=l+r>>1;
        return min(get2(node<<1,l,mid,l1,r1),get2(node<<1|1,mid+1,r,l1,r1));
    }
    int get(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;
        return max(get(node<<1,l,mid,l1,r1),get(node<<1|1,mid+1,r,l1,r1));
    }
} ss;
int a[500001];
ib b[500001];
vector<int> v[500003];
vector<int> v2[500003];
vector<int> v3[500003];
void setup()
{
    st1.upd(1,1,n,1,n,1);
    st2.upd(1,1,n,1,n,n);
    for(int i=1; i<n; i++)
    {
        s2=upper_bound(v[a[i]].begin(),v[a[i]].end(),i)-v[a[i]].begin();
        s2--;
        s3=v[a[i]][s2]+1;
        b[i].a=s3;
        v2[s3-1].pb(i+1);
        s2=lower_bound(v[a[i]].begin(),v[a[i]].end(),i+1)-v[a[i]].begin();
        s3=v[a[i]][s2]-1;
        b[i].b=s3;
        v3[s3+1].pb(i);
    }
}
void solve1()
{
    for(int i=0; i<n; i++)
    {
        /// di tu trai sang
        s3=b[i].b+1;
        ///i+1->s3
        for(auto x:v2[i]) ss.upd(1,1,n,x,x);
if(i==0) continue;
        if(s3==n+1)
        {
            st1.upd(1,1,n,i+1,n,i+1);
            continue;
        }
        s4=ss.get(1,1,n,i+2,s3);
        st1.upd(1,1,n,i+1,s4-1,i+1);
    }
}
void solve2()
{
    ss.reset(1,1,n);
    for(int i=n; i>=1; --i)
    {
        s3=b[i].a-1;

        for(auto x:v3[i+1]) ss.upd2(1,1,n,x,x);
         if(i>=n) continue;
        if(s3==0)
        {
            st2.upd(1,1,n,1,i,i);
            continue;
        }
        s4=ss.get2(1,1,n,s3,i);
        st2.upd(1,1,n,s4+1,i,i);
        //cout<<s4+1<<" "<<i<<" "<<s3,down
    }
}
void phongbeo()
{
    cin>>n;
    for(int i=1; i<n; i++)
        cin>>a[i],v[i].pb(0);
    v[n].pb(0);
    for(int i=1; i<=n; i++)
    {
        cin>>k;
        for(int j=1; j<=k; j++)
        {
            cin>>l;
            v[l].pb(i);
        }
    }
    for(int i=1; i<=n; i++)
        v[i].pb(n+1);
    setup();
    solve1();
    solve2();
    cin>>m;
    for(int i=1; i<=m; i++)
    {
        cin>>l>>r;
        if(r>l)
        {
            s4=st2.get(1,1,n,l,l);
            if(s4>=r)
            {
                cout<<"YES";
            }
            else cout<<"NO";
        }
        else
        {
            s4=st1.get(1,1,n,l,l);
            if(s4<=r)
            {
                cout<<"YES";
            }
            else cout<<"NO";
        }
        cout<<"\n";
    }
}

Compilation message

long_mansion.cpp:45:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   45 | main()
      | ^~~~
long_mansion.cpp: In member function 'void IT::upd(int, int, int, int, int, int)':
long_mansion.cpp:73:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   73 |         int mid=l+r>>1;
      |                 ~^~
long_mansion.cpp: In member function 'int IT::get(int, int, int, int, int)':
long_mansion.cpp:87:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   87 |         int mid=l+r>>1;
      |                 ~^~
long_mansion.cpp: In member function 'void IT2::reset(int, int, int)':
long_mansion.cpp:98:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   98 |         int mid=l+r>>1;
      |                 ~^~
long_mansion.cpp: In member function 'void IT2::upd(int, int, int, int, int)':
long_mansion.cpp:110:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  110 |         int mid=l+r>>1;
      |                 ~^~
long_mansion.cpp: In member function 'void IT2::upd2(int, int, int, int, int)':
long_mansion.cpp:123:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  123 |         int mid=l+r>>1;
      |                 ~^~
long_mansion.cpp: In member function 'int IT2::get2(int, int, int, int, int)':
long_mansion.cpp:132:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  132 |         int mid=l+r>>1;
      |                 ~^~
long_mansion.cpp: In member function 'int IT2::get(int, int, int, int, int)':
long_mansion.cpp:139:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  139 |         int mid=l+r>>1;
      |                 ~^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 36032 KB Output is correct
2 Correct 27 ms 35932 KB Output is correct
3 Correct 29 ms 36436 KB Output is correct
4 Correct 22 ms 36088 KB Output is correct
5 Correct 22 ms 35932 KB Output is correct
6 Correct 25 ms 35892 KB Output is correct
7 Correct 24 ms 35928 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 36032 KB Output is correct
2 Correct 27 ms 35932 KB Output is correct
3 Correct 29 ms 36436 KB Output is correct
4 Correct 22 ms 36088 KB Output is correct
5 Correct 22 ms 35932 KB Output is correct
6 Correct 25 ms 35892 KB Output is correct
7 Correct 24 ms 35928 KB Output is correct
8 Correct 126 ms 41812 KB Output is correct
9 Correct 133 ms 41600 KB Output is correct
10 Correct 126 ms 42064 KB Output is correct
11 Correct 133 ms 42836 KB Output is correct
12 Correct 112 ms 41208 KB Output is correct
13 Correct 120 ms 42068 KB Output is correct
14 Correct 115 ms 42084 KB Output is correct
15 Correct 119 ms 42068 KB Output is correct
16 Correct 118 ms 41812 KB Output is correct
17 Correct 124 ms 41888 KB Output is correct
18 Correct 121 ms 42068 KB Output is correct
19 Correct 116 ms 42068 KB Output is correct
20 Correct 121 ms 41940 KB Output is correct
21 Correct 116 ms 41820 KB Output is correct
22 Correct 118 ms 41748 KB Output is correct
23 Correct 124 ms 41632 KB Output is correct
24 Correct 124 ms 41708 KB Output is correct
25 Correct 119 ms 41572 KB Output is correct
26 Correct 121 ms 41628 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 262 ms 57784 KB Output is correct
2 Correct 267 ms 57480 KB Output is correct
3 Correct 237 ms 57392 KB Output is correct
4 Correct 251 ms 57732 KB Output is correct
5 Correct 309 ms 57680 KB Output is correct
6 Correct 211 ms 57684 KB Output is correct
7 Correct 208 ms 57936 KB Output is correct
8 Correct 218 ms 58196 KB Output is correct
9 Correct 204 ms 58196 KB Output is correct
10 Correct 202 ms 58192 KB Output is correct
11 Correct 205 ms 58096 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 36032 KB Output is correct
2 Correct 27 ms 35932 KB Output is correct
3 Correct 29 ms 36436 KB Output is correct
4 Correct 22 ms 36088 KB Output is correct
5 Correct 22 ms 35932 KB Output is correct
6 Correct 25 ms 35892 KB Output is correct
7 Correct 24 ms 35928 KB Output is correct
8 Correct 126 ms 41812 KB Output is correct
9 Correct 133 ms 41600 KB Output is correct
10 Correct 126 ms 42064 KB Output is correct
11 Correct 133 ms 42836 KB Output is correct
12 Correct 112 ms 41208 KB Output is correct
13 Correct 120 ms 42068 KB Output is correct
14 Correct 115 ms 42084 KB Output is correct
15 Correct 119 ms 42068 KB Output is correct
16 Correct 118 ms 41812 KB Output is correct
17 Correct 124 ms 41888 KB Output is correct
18 Correct 121 ms 42068 KB Output is correct
19 Correct 116 ms 42068 KB Output is correct
20 Correct 121 ms 41940 KB Output is correct
21 Correct 116 ms 41820 KB Output is correct
22 Correct 118 ms 41748 KB Output is correct
23 Correct 124 ms 41632 KB Output is correct
24 Correct 124 ms 41708 KB Output is correct
25 Correct 119 ms 41572 KB Output is correct
26 Correct 121 ms 41628 KB Output is correct
27 Correct 262 ms 57784 KB Output is correct
28 Correct 267 ms 57480 KB Output is correct
29 Correct 237 ms 57392 KB Output is correct
30 Correct 251 ms 57732 KB Output is correct
31 Correct 309 ms 57680 KB Output is correct
32 Correct 211 ms 57684 KB Output is correct
33 Correct 208 ms 57936 KB Output is correct
34 Correct 218 ms 58196 KB Output is correct
35 Correct 204 ms 58196 KB Output is correct
36 Correct 202 ms 58192 KB Output is correct
37 Correct 205 ms 58096 KB Output is correct
38 Correct 778 ms 93932 KB Output is correct
39 Correct 846 ms 101184 KB Output is correct
40 Correct 590 ms 85692 KB Output is correct
41 Correct 529 ms 103800 KB Output is correct
42 Correct 247 ms 57940 KB Output is correct
43 Correct 209 ms 59184 KB Output is correct
44 Correct 306 ms 75860 KB Output is correct
45 Correct 311 ms 76112 KB Output is correct
46 Correct 302 ms 76340 KB Output is correct
47 Correct 209 ms 59220 KB Output is correct
48 Correct 203 ms 59216 KB Output is correct
49 Correct 292 ms 76732 KB Output is correct
50 Correct 344 ms 76436 KB Output is correct
51 Correct 309 ms 76300 KB Output is correct
52 Correct 297 ms 68868 KB Output is correct
53 Correct 378 ms 85708 KB Output is correct
54 Correct 478 ms 94152 KB Output is correct
55 Correct 391 ms 84724 KB Output is correct