oj.uz

Submission #1063146

# Submission time Handle Problem Language Result Execution time Memory
1063146 2024-08-17T14:40:06 Z new_acc Comparing Plants (IOI20_plants) C++14
5 / 100
 485 ms 92400 KB 
#include<bits/stdc++.h>
#include "plants.h"
#define fi first
#define se second
#define pitem item*
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef vector<ll> vl;
const int N=4e5+10;
const int SS=1<<19;
const int INFi=1e9;
const ll INFl=1e16;
const ll mod2=998244353;
const ll mod=1e9+7;
const ll mod3=2027865967;
const ll p=70032301;
const ull p2=913;
const int L=20;
int t[N],n,lazy[SS*2+10],k,li,t2[N],g[N],jp[N][L],jp2[N][L];
pair<int,int> seg[SS*2+10];
void push(int v){
    seg[v*2].fi+=lazy[v],seg[v*2+1].fi+=lazy[v];
    lazy[v*2]+=lazy[v],lazy[v*2+1]+=lazy[v];
    lazy[v]=0;
}
void upd(int a,int b,int x,int p=0,int k=SS-1,int v=1){
    if(p>b or k<a) return;
    if(p>=a and k<=b){
        lazy[v]+=x,seg[v].fi+=x;
        return;
    }
    int sr=(p+k)/2;
    push(v);
    upd(a,b,x,p,sr,v*2),upd(a,b,x,sr+1,k,v*2+1);
    if(seg[v*2].fi<seg[v*2+1].fi) seg[v]=seg[v*2];
    else seg[v]=seg[v*2+1];
}
pair<int,int> qr(int a,int b,int p=0,int k=SS-1,int v=1){
    if(p>b or k<a) return {INFi,-1};
    if(p>=a and k<=b) return seg[v];
    push(v);
    int sr=(p+k)/2;
    pair<int,int> q1=qr(a,b,p,sr,v*2),q2=qr(a,b,sr+1,k,v*2+1);
    if(q1.fi<q2.fi) return q1;
    return q2;
}
void build(int v){
    if(v>=SS){
        int id=v-SS;
        if(id>=1 and id<=n) seg[v]={t[id],id};
        else seg[v]={INFi,id};
    }else{
        build(v*2),build(v*2+1);
        if(seg[v*2].fi<seg[v*2+1].fi) seg[v]=seg[v*2];
        else seg[v]=seg[v*2+1];
    }
}
void zn(int a){
    if(a>=k){
        pair<int,int> xd=qr(a-k+1,a-1);
        if(xd.fi==0) zn(xd.se);
        t2[a]=--li;
    }else{
        pair<int,int> xd=qr(1,a-1);
        if(xd.fi==0) zn(xd.se);
        else{
            xd=qr(n-(k-a)+1,n);
            if(xd.fi==0) zn(xd.se);
        }
        t2[a]=--li;
    }
    if(a>=k) upd(a-k+1,a-1,-1);
    else{
        upd(1,a-1,-1);
        upd(n-(k-a)+1,n,-1);
    }
    upd(a,a,INFi);
}
void init(int kk,vi r){
    k=kk;
    n=r.size();
    for(int i=1;i<=n;i++) t[i]=r[i-1];
    build(1);
    li=n+1;
    pair<int,int> curr=qr(1,n);
    while(curr.fi==0){
        zn(curr.se);
        curr=qr(1,n);
    }
    for(int i=n+1;i<=n*2;i++) t2[i]=t2[i-n];        
    for(int i=1;i<=n;i++) g[t2[i]]=i;
    n*=2;
    for(int i=1;i<=n;i++) t[i]=INFi;
    build(1);
    n/=2;
    for(int i=n;i>=1;i--){
        upd(g[i],g[i],-INFi+i); 
        upd(g[i]+n,g[i]+n,-INFi+i); 
        pair<int,int> xd=qr(g[i]+1,g[i]+k-1);
        if(xd.fi>=INFi) jp[g[i]][0]=g[i],jp[g[i]+n][0]=n+g[i];
        else{
            jp[g[i]][0]=xd.se;
            if(xd.se<=n) jp[g[i]+n][0]=xd.se+n;
            else jp[g[i]+n][0]=g[i]+n;
        }
        xd=qr(g[i]+n-k+1,g[i]+n-1);
        if(xd.fi>=INFi) jp2[g[i]][0]=g[i],jp2[g[i]+n][0]=n+g[i];
        else{
            jp2[g[i]+n][0]=xd.se;
            if(xd.se>n) jp2[g[i]][0]=xd.se-n;
            else jp2[g[i]][0]=g[i];
        }
    }
    //for(int i=1;i<=n;i++) cout<<jp[i][0]<<" ";
    //cout<<"\n";
    for(int i2=1;i2<L;i2++){
        for(int i=1;i<=n*2;i++){
            jp[i][i2]=jp[jp[i][i2-1]][i2-1];
            jp2[i][i2]=jp2[jp2[i][i2-1]][i2-1];
        }
    }
}
int compare_plants(int x,int y){
    x++,y++;
    int curr=x; 
    for(int i=L-1;i>=0;i--)
        if(jp[curr][i]<=y) curr=jp[curr][i];
    int curr2=y;
    for(int i=L-1;i>=0;i--)
        if(jp[curr2][i]<=x+n) curr2=jp[curr2][i];
    if(t2[curr]<=t2[y] and y-curr<k) return -1;
    if(t2[curr2]<=t2[x+n] and x+n-curr2<k) return 1;
    curr=y; 
    for(int i=L-1;i>=0;i--){
        if(jp2[curr][i]>=x) curr=jp2[curr][i];
    }
    curr2=x+n;
    for(int i=L-1;i>=0;i--){
        if(jp2[curr2][i]>=y) curr2=jp2[curr2][i];
    }
    if(t2[curr]<=t2[x] and curr-x<k) return 1;
    if(t2[curr2]<=t2[y] and curr2-y<k) return -1;
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12636 KB Output is correct
2 Correct 8 ms 12688 KB Output is correct
3 Correct 9 ms 12632 KB Output is correct
4 Correct 12 ms 12636 KB Output is correct
5 Correct 11 ms 12636 KB Output is correct
6 Correct 63 ms 16488 KB Output is correct
7 Correct 114 ms 24404 KB Output is correct
8 Correct 466 ms 85844 KB Output is correct
9 Correct 451 ms 86100 KB Output is correct
10 Correct 455 ms 85992 KB Output is correct
11 Correct 485 ms 87120 KB Output is correct
12 Correct 463 ms 89324 KB Output is correct
13 Correct 485 ms 92400 KB Output is correct
14 Correct 484 ms 85844 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 12636 KB Output is correct
2 Correct 9 ms 12636 KB Output is correct
3 Correct 9 ms 12740 KB Output is correct
4 Correct 9 ms 12636 KB Output is correct
5 Incorrect 9 ms 12636 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 12636 KB Output is correct
2 Correct 9 ms 12636 KB Output is correct
3 Correct 9 ms 12740 KB Output is correct
4 Correct 9 ms 12636 KB Output is correct
5 Incorrect 9 ms 12636 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12632 KB Output is correct
2 Correct 8 ms 12632 KB Output is correct
3 Incorrect 71 ms 17924 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 12632 KB Output is correct
2 Correct 9 ms 12636 KB Output is correct
3 Correct 9 ms 12692 KB Output is correct
4 Incorrect 8 ms 12636 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12636 KB Output is correct
2 Correct 8 ms 12596 KB Output is correct
3 Correct 8 ms 12792 KB Output is correct
4 Incorrect 12 ms 12636 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12636 KB Output is correct
2 Correct 8 ms 12688 KB Output is correct
3 Correct 9 ms 12632 KB Output is correct
4 Correct 12 ms 12636 KB Output is correct
5 Correct 11 ms 12636 KB Output is correct
6 Correct 63 ms 16488 KB Output is correct
7 Correct 114 ms 24404 KB Output is correct
8 Correct 466 ms 85844 KB Output is correct
9 Correct 451 ms 86100 KB Output is correct
10 Correct 455 ms 85992 KB Output is correct
11 Correct 485 ms 87120 KB Output is correct
12 Correct 463 ms 89324 KB Output is correct
13 Correct 485 ms 92400 KB Output is correct
14 Correct 484 ms 85844 KB Output is correct
15 Correct 10 ms 12636 KB Output is correct
16 Correct 9 ms 12636 KB Output is correct
17 Correct 9 ms 12740 KB Output is correct
18 Correct 9 ms 12636 KB Output is correct
19 Incorrect 9 ms 12636 KB Output isn't correct
20 Halted 0 ms 0 KB -