oj.uz

Submission #304051

# Submission time Handle Problem Language Result Execution time Memory
304051 2020-09-21T01:54:50 Z daniel920712 Comparing Plants (IOI20_plants) C++14
5 / 100
 143 ms 20728 KB 
#include "plants.h"
#include <stdio.h>
#include <vector>
#include <utility>
#include <set>
using namespace std;
vector < int > all;
vector < int > ttt;
vector < int > Next[200005];
vector < pair < int , int > > con[200005];
int N,tt=0;
bool use[2000005]={0};
int Con[200005];
int what[200005];
int now=1;
struct A
{
    int l,r;
    int nxl,nxr;
    int small1,small2;
    int big2;
    int add1,add2;
}Node[2000005];
void build(int l,int r,int here)
{
    Node[here].l=l;
    Node[here].r=r;
    Node[here].add1=0;
    Node[here].add2=0;
    Node[here].small1=0;
    if(l==r)
    {
        Node[here].small2=all[l];
        Node[here].big2=all[l];
        return ;
    }
    Node[here].nxl=now++;
    Node[here].nxr=now++;
    build(l,(l+r)/2,Node[here].nxl);
    build((l+r)/2+1,r,Node[here].nxr);
    Node[here].small2=min(Node[Node[here].nxl].small2,Node[Node[here].nxr].small2);
    Node[here].small1=min(Node[Node[here].nxl].small1,Node[Node[here].nxr].small1);
    Node[here].big2=max(Node[Node[here].nxl].big2,Node[Node[here].nxr].big2);

}
void UPD(int here)
{
    Node[Node[here].nxl].add1+=Node[here].add1;
    Node[Node[here].nxl].small1+=Node[here].add1;
    Node[Node[here].nxr].add1+=Node[here].add1;
    Node[Node[here].nxr].small1+=Node[here].add1;
    Node[here].add1=0;

    Node[Node[here].nxl].add2+=Node[here].add2;
    Node[Node[here].nxl].small2+=Node[here].add2;
    Node[Node[here].nxr].add2+=Node[here].add2;
    Node[Node[here].nxr].small2+=Node[here].add2;
    Node[Node[here].nxl].big2+=Node[here].add2;
    Node[Node[here].nxr].big2+=Node[here].add2;
    Node[here].add2=0;
}
void cha1(int l,int r,int con,int here)
{
    if(l>r) return ;
    if(l==Node[here].l&&r==Node[here].r)
    {
        Node[here].add1+=con;
        Node[here].small1+=con;
        return;
    }
    UPD(here);
    if(r<=(Node[here].l+Node[here].r)/2) cha1(l,r,con,Node[here].nxl);
    else if(l>(Node[here].l+Node[here].r)/2) cha1(l,r,con,Node[here].nxr);
    else
    {
        cha1(l,(Node[here].l+Node[here].r)/2,con,Node[here].nxl);
        cha1((Node[here].l+Node[here].r)/2+1,r,con,Node[here].nxr);
    }
    Node[here].big2=max(Node[Node[here].nxl].big2,Node[Node[here].nxr].big2);
    Node[here].small2=min(Node[Node[here].nxl].small2,Node[Node[here].nxr].small2);
    Node[here].small1=min(Node[Node[here].nxl].small1,Node[Node[here].nxr].small1);
}

void cha2(int l,int r,int con,int here)
{
    if(l>r) return ;
    if(l==Node[here].l&&r==Node[here].r)
    {
        Node[here].add2+=con;
        Node[here].small2+=con;
        Node[here].big2+=con;
        return;
    }
    UPD(here);
    if(r<=(Node[here].l+Node[here].r)/2) cha2(l,r,con,Node[here].nxl);
    else if(l>(Node[here].l+Node[here].r)/2) cha2(l,r,con,Node[here].nxr);
    else
    {
        cha2(l,(Node[here].l+Node[here].r)/2,con,Node[here].nxl);
        cha2((Node[here].l+Node[here].r)/2+1,r,con,Node[here].nxr);
    }
    Node[here].big2=max(Node[Node[here].nxl].big2,Node[Node[here].nxr].big2);
    Node[here].small2=min(Node[Node[here].nxl].small2,Node[Node[here].nxr].small2);
    Node[here].small1=min(Node[Node[here].nxl].small1,Node[Node[here].nxr].small1);
}
int Find1(int where,int here)
{
    if(Node[here].l==where&&Node[here].r==where) return Node[here].small1;
    UPD(here);
    if(where<=(Node[here].l+Node[here].r)/2) return Find1(where,Node[here].nxl);
    else return Find1(where,Node[here].nxr);
}
int Find2(int where,int here)
{
    if(Node[here].l==where&&Node[here].r==where) return Node[here].small2;
    UPD(here);
    if(where<=(Node[here].l+Node[here].r)/2) return Find2(where,Node[here].nxl);
    else return Find2(where,Node[here].nxr);
}

void New(int here)
{
    if(Node[here].l==Node[here].r)
    {
        ttt.push_back(Node[here].l);
        return;
    }
    UPD(here);
    if(Node[Node[here].nxl].small2==0) New(Node[here].nxl);
    if(Node[Node[here].nxr].small2==0) New(Node[here].nxr);

}
int New2(int here)
{
    if(Node[here].l==Node[here].r) return Node[here].l;
    UPD(here);
    if(Node[Node[here].nxl].big2>N&&Node[Node[here].nxl].small1==0) return New2(Node[here].nxl);
    return New2(Node[here].nxr);

}
void init(int k,vector<int> r)
{
    int a=0,b=0,i,j,ok=0,l,t,t2,x,ll,rr;
    all=r;
    N=r.size();
    if(k==2) tt=1;
    for(i=0;i<N;i++)
    {
        if(k==2)
        {
            if(r[(i+N-1)%N]!=r[i])
            {
                b=0;
                a++;
                con[i].push_back(make_pair(a,0));
                for(j=(i+1)%N;r[(j+N-1)%N]==r[i];j=(j+1)%N)
                {
                    if(j==N-1) ok=1;
                    if(r[i]==0) b--;
                    else b++;
                    con[j].push_back(make_pair(a,b));
                }
            }
        }
        else
        {
            build(0,N-1,0);
            ttt.clear();
            New(0);
            for(auto t:ttt)
            {
                cha2(t,t,1e9,0);
                t2=(t+k-1)%N;
                if(t2>=t) cha1(t+1,t2,1,0);
                else
                {
                    cha1(t+1,N-1,1,0);
                    cha1(0,t2,1,0);
                }
            }
            for(i=0;i<N;i++)
            {
                x=New2(0);
                //printf("%d\n",x);
                cha1(x,x,1e9,0);
                what[x]=i;
                use[x]=1;
                t=(x+k-1)%N;
                if(t>=x) cha1(x+1,t,-1,0);
                else
                {
                    cha1(x+1,N-1,-1,0);
                    cha1(0,t,-1,0);
                }
                ll=(x-(k-1)+N)%N;
                rr=(x-1+N)%N;
                if(rr>=ll) cha2(ll,rr,-1,0);
                else
                {
                    cha2(ll,N-1,-1,0);
                    cha2(0,rr,-1,0);
                }
                ttt.clear();
                New(0);
                for(auto t:ttt)
                {
                    cha2(t,t,1e9,0);
                    t2=(t+k-1)%N;
                    if(t2>=t) cha1(t+1,t2,1,0);
                    else
                    {
                        cha1(t+1,N-1,1,0);
                        cha1(0,t2,1,0);
                    }
                }

            }
        }
    }
	return;
}
bool F(int A,int B)
{
    if(A==B) return 1;
    if(use[A]) return 0;
    use[A]=1;
    for(auto i:Next[A]) if(F(i,B)) return 1;
    return 0;
}
int compare_plants(int x, int y)
{
    int i;
    if(tt)
    {
        for(auto i:con[x])
        {
            for(auto j:con[y])
            {
                if(i.first==j.first)
                {
                    if(i.second<j.second) return -1;
                    return 1;
                }
            }
        }

    }
    else
    {
        if(what[x]<what[y]) return 1;
        else return -1;
    }

	return 0;
}

Compilation message

plants.cpp: In function 'void init(int, std::vector<int>)':
plants.cpp:143:21: warning: variable 'ok' set but not used [-Wunused-but-set-variable]
  143 |     int a=0,b=0,i,j,ok=0,l,t,t2,x,ll,rr;
      |                     ^~
plants.cpp:143:26: warning: unused variable 'l' [-Wunused-variable]
  143 |     int a=0,b=0,i,j,ok=0,l,t,t2,x,ll,rr;
      |                          ^
plants.cpp: In function 'int compare_plants(int, int)':
plants.cpp:232:9: warning: unused variable 'i' [-Wunused-variable]
  232 |     int i;
      |         ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 7 ms 9728 KB Output is correct
6 Correct 72 ms 12536 KB Output is correct
7 Correct 88 ms 13432 KB Output is correct
8 Correct 136 ms 20728 KB Output is correct
9 Correct 137 ms 20728 KB Output is correct
10 Correct 137 ms 20708 KB Output is correct
11 Correct 134 ms 20728 KB Output is correct
12 Correct 143 ms 20716 KB Output is correct
13 Correct 132 ms 20688 KB Output is correct
14 Correct 134 ms 20728 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 7 ms 9728 KB Output is correct
5 Incorrect 7 ms 9728 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 7 ms 9728 KB Output is correct
5 Incorrect 7 ms 9728 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Incorrect 77 ms 12920 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 8 ms 9728 KB Output is correct
4 Incorrect 7 ms 9728 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Incorrect 7 ms 9728 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 7 ms 9728 KB Output is correct
6 Correct 72 ms 12536 KB Output is correct
7 Correct 88 ms 13432 KB Output is correct
8 Correct 136 ms 20728 KB Output is correct
9 Correct 137 ms 20728 KB Output is correct
10 Correct 137 ms 20708 KB Output is correct
11 Correct 134 ms 20728 KB Output is correct
12 Correct 143 ms 20716 KB Output is correct
13 Correct 132 ms 20688 KB Output is correct
14 Correct 134 ms 20728 KB Output is correct
15 Correct 8 ms 9728 KB Output is correct
16 Correct 7 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Incorrect 7 ms 9728 KB Output isn't correct
20 Halted 0 ms 0 KB -