oj.uz

Submission #306055

# Submission time Handle Problem Language Result Execution time Memory
306055 2020-09-24T11:53:47 Z gs18115 Comparing Plants (IOI20_plants) C++14
100 / 100
 2486 ms 87720 KB 
#include"plants.h"
#include<iostream>
#include<vector>
#include<algorithm>
#define ep emplace
#define eb emplace_back
#define fi first
#define se second
#define all(x) (x).begin(),(x).end()
using namespace std;
typedef long long ll;
typedef pair<int,int>pi;
typedef pair<ll,ll>pl;
const int inf=1e9+7;
const ll INF=1e18;
const int mx=200010;
struct seg
{
    pi t[mx*4];
    int lz[mx*4];
    void init(int n,int s,int e,vector<int>&v)
    {
        lz[n]=0;
        if(s==e)
        {
            t[n]=pi(v[s],s);
            return;
        }
        int m=s+(e-s)/2;
        init(n*2,s,m,v);
        init(n*2+1,m+1,e,v);
        t[n]=min(t[n*2],t[n*2+1]);
        return;
    }
    inline void put(int n,int p)
    {
        t[n].fi+=p;
        lz[n]+=p;
        return;
    }
    inline void prop(int n)
    {
        if(lz[n]==0)
            return;
        put(n*2,lz[n]);
        put(n*2+1,lz[n]);
        lz[n]=0;
        return;
    }
    void upd(int n,int s,int e,int S,int E,int p)
    {
        if(s>E||S>e)
            return;
        if(S<=s&&e<=E)
            return put(n,p);
        prop(n);
        int m=s+(e-s)/2;
        upd(n*2,s,m,S,E,p);
        upd(n*2+1,m+1,e,S,E,p);
        t[n]=min(t[n*2],t[n*2+1]);
        return;
    }
}st1,st2;
struct seg2
{
    int t[mx*4];
    void init(int n,int s,int e,int v)
    {
        t[n]=v;
        if(s==e)
            return;
        int m=s+(e-s)/2;
        init(n*2,s,m,v);
        init(n*2+1,m+1,e,v);
        return;
    }
    void put(int n,int s,int e,int x,int p)
    {
        if(s==e)
        {
            t[n]=p;
            return;
        }
        int m=s+(e-s)/2;
        if(x>m)
            put(n*2+1,m+1,e,x,p);
        else
            put(n*2,s,m,x,p);
        t[n]=min(t[n*2],t[n*2+1]);
        return;
    }
    int query(int n,int s,int e,int S,int E)
    {
        if(s>E||S>e)
            return inf;
        if(S<=s&&e<=E)
            return t[n];
        int m=s+(e-s)/2;
        return min(query(n*2,s,m,S,E),query(n*2+1,m+1,e,S,E));
    }
}st3;
int ord[mx];
vector<int>ov;
int spa1[mx][20],spd1[mx][20];
int spa2[mx][20],spd2[mx][20];
int n;
void init(int k,vector<int>r)
{
    n=r.size();
    st1.init(1,0,n-1,r);
    st2.init(1,0,n-1,r);
    for(int i=0;i<n;i++)
    {
        while(st2.t[1].fi==0)
        {
            int cur=st2.t[1].se;
            st2.upd(1,0,n-1,cur,cur,inf);
            st1.upd(1,0,n-1,cur+1,cur+k-1,1),st1.upd(1,0,n-1,0,cur+k-1-n,1);
        }
        int cur=st1.t[1].se;
        ord[cur]=i;
        ov.eb(cur);
        st1.upd(1,0,n-1,cur,cur,inf);
        st1.upd(1,0,n-1,cur-k+1+n,n-1,-1),st1.upd(1,0,n-1,cur-k+1,cur-1,-1);
        st1.upd(1,0,n-1,cur+1,cur+k-1,-1),st1.upd(1,0,n-1,0,cur+k-1-n,-1);
        st2.upd(1,0,n-1,cur-k+1+n,n-1,-1),st2.upd(1,0,n-1,cur-k+1,cur-1,-1);
    }
    st3.init(1,0,n-1,n);
    auto get3=[&](const int&p)->int{return min(st3.query(1,0,n-1,p-k+1,p-1),
    st3.query(1,0,n-1,p-k+1+n,n-1));};
    auto get4=[&](const int&p)->int{return min(st3.query(1,0,n-1,p+1,p+k-1),
    st3.query(1,0,n-1,0,p+k-1-n));};
    ov.eb(ord[n]=n);
    for(int i=0;i<20;i++)
        spa1[n][i]=spa2[n][i]=n,spd1[n][i]=spd2[n][i]=0;
    for(int i=n;i-->0;)
    {
        int cur=ov[i];
        int nx=ov[get3(cur)];
        spa1[cur][0]=nx,spd1[cur][0]=nx>cur?1:0;
        nx=ov[get4(cur)];
        spa2[cur][0]=nx,spd2[cur][0]=nx<cur?1:0;
        st3.put(1,0,n-1,cur,i);
    }
    for(int j=0;j<19;j++)
        for(int i=0;i<=n;i++)
            spa1[i][j+1]=spa1[spa1[i][j]][j],
            spd1[i][j+1]=spd1[spa1[i][j]][j]+spd1[i][j],
            spa2[i][j+1]=spa2[spa2[i][j]][j],
            spd2[i][j+1]=spd2[spa2[i][j]][j]+spd2[i][j];
    return;
}
int compare_plants(int x,int y)
{
    int p=1;
    if(ord[x]>ord[y])
        swap(x,y),p=-1;
    int l=x,ld=0;
    int r=x,rd=0;
    for(int i=20;i-->0;)
        if(ord[spa1[l][i]]<=ord[y])
            ld+=spd1[l][i],l=spa1[l][i];
    for(int i=20;i-->0;)
        if(ord[spa2[r][i]]<=ord[y])
            rd+=spd2[r][i],r=spa2[r][i];
    l-=n*min(2,ld),r+=n*min(2,rd);
    for(int i=-1;i<=1;i++)
        if(l+i*n<=y&&y<=r+i*n)
            return p;
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12928 KB Output is correct
2 Correct 8 ms 12928 KB Output is correct
3 Correct 8 ms 12928 KB Output is correct
4 Correct 9 ms 12832 KB Output is correct
5 Correct 8 ms 12928 KB Output is correct
6 Correct 91 ms 15736 KB Output is correct
7 Correct 192 ms 23220 KB Output is correct
8 Correct 795 ms 87252 KB Output is correct
9 Correct 829 ms 87312 KB Output is correct
10 Correct 869 ms 87276 KB Output is correct
11 Correct 861 ms 87348 KB Output is correct
12 Correct 904 ms 87416 KB Output is correct
13 Correct 988 ms 87404 KB Output is correct
14 Correct 944 ms 87276 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12928 KB Output is correct
2 Correct 8 ms 12928 KB Output is correct
3 Correct 9 ms 12928 KB Output is correct
4 Correct 8 ms 12928 KB Output is correct
5 Correct 9 ms 12928 KB Output is correct
6 Correct 15 ms 13312 KB Output is correct
7 Correct 177 ms 17656 KB Output is correct
8 Correct 11 ms 13056 KB Output is correct
9 Correct 14 ms 13312 KB Output is correct
10 Correct 179 ms 17656 KB Output is correct
11 Correct 135 ms 17528 KB Output is correct
12 Correct 140 ms 17680 KB Output is correct
13 Correct 172 ms 17784 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12928 KB Output is correct
2 Correct 8 ms 12928 KB Output is correct
3 Correct 9 ms 12928 KB Output is correct
4 Correct 8 ms 12928 KB Output is correct
5 Correct 9 ms 12928 KB Output is correct
6 Correct 15 ms 13312 KB Output is correct
7 Correct 177 ms 17656 KB Output is correct
8 Correct 11 ms 13056 KB Output is correct
9 Correct 14 ms 13312 KB Output is correct
10 Correct 179 ms 17656 KB Output is correct
11 Correct 135 ms 17528 KB Output is correct
12 Correct 140 ms 17680 KB Output is correct
13 Correct 172 ms 17784 KB Output is correct
14 Correct 361 ms 23220 KB Output is correct
15 Correct 2486 ms 87332 KB Output is correct
16 Correct 359 ms 23348 KB Output is correct
17 Correct 2442 ms 87496 KB Output is correct
18 Correct 1227 ms 87424 KB Output is correct
19 Correct 1240 ms 87492 KB Output is correct
20 Correct 2162 ms 87440 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12928 KB Output is correct
2 Correct 8 ms 12928 KB Output is correct
3 Correct 126 ms 16376 KB Output is correct
4 Correct 1125 ms 87560 KB Output is correct
5 Correct 1330 ms 87404 KB Output is correct
6 Correct 1726 ms 87444 KB Output is correct
7 Correct 2084 ms 87416 KB Output is correct
8 Correct 2407 ms 87676 KB Output is correct
9 Correct 1151 ms 87532 KB Output is correct
10 Correct 1111 ms 87456 KB Output is correct
11 Correct 958 ms 87276 KB Output is correct
12 Correct 1054 ms 87368 KB Output is correct
13 Correct 1259 ms 87556 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12928 KB Output is correct
2 Correct 8 ms 12928 KB Output is correct
3 Correct 9 ms 12928 KB Output is correct
4 Correct 8 ms 12928 KB Output is correct
5 Correct 9 ms 12928 KB Output is correct
6 Correct 12 ms 13056 KB Output is correct
7 Correct 31 ms 13568 KB Output is correct
8 Correct 31 ms 13696 KB Output is correct
9 Correct 30 ms 13696 KB Output is correct
10 Correct 32 ms 13696 KB Output is correct
11 Correct 30 ms 13696 KB Output is correct
12 Correct 29 ms 13696 KB Output is correct
13 Correct 33 ms 13696 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12928 KB Output is correct
2 Correct 8 ms 12928 KB Output is correct
3 Correct 8 ms 12928 KB Output is correct
4 Correct 10 ms 12928 KB Output is correct
5 Correct 12 ms 13184 KB Output is correct
6 Correct 1149 ms 87352 KB Output is correct
7 Correct 1526 ms 87600 KB Output is correct
8 Correct 1905 ms 87480 KB Output is correct
9 Correct 2187 ms 87400 KB Output is correct
10 Correct 1057 ms 87416 KB Output is correct
11 Correct 1454 ms 87288 KB Output is correct
12 Correct 986 ms 87404 KB Output is correct
13 Correct 1258 ms 87464 KB Output is correct
14 Correct 1518 ms 87448 KB Output is correct
15 Correct 1941 ms 87508 KB Output is correct
16 Correct 963 ms 87224 KB Output is correct
17 Correct 1090 ms 87268 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12928 KB Output is correct
2 Correct 8 ms 12928 KB Output is correct
3 Correct 8 ms 12928 KB Output is correct
4 Correct 9 ms 12832 KB Output is correct
5 Correct 8 ms 12928 KB Output is correct
6 Correct 91 ms 15736 KB Output is correct
7 Correct 192 ms 23220 KB Output is correct
8 Correct 795 ms 87252 KB Output is correct
9 Correct 829 ms 87312 KB Output is correct
10 Correct 869 ms 87276 KB Output is correct
11 Correct 861 ms 87348 KB Output is correct
12 Correct 904 ms 87416 KB Output is correct
13 Correct 988 ms 87404 KB Output is correct
14 Correct 944 ms 87276 KB Output is correct
15 Correct 9 ms 12928 KB Output is correct
16 Correct 8 ms 12928 KB Output is correct
17 Correct 9 ms 12928 KB Output is correct
18 Correct 8 ms 12928 KB Output is correct
19 Correct 9 ms 12928 KB Output is correct
20 Correct 15 ms 13312 KB Output is correct
21 Correct 177 ms 17656 KB Output is correct
22 Correct 11 ms 13056 KB Output is correct
23 Correct 14 ms 13312 KB Output is correct
24 Correct 179 ms 17656 KB Output is correct
25 Correct 135 ms 17528 KB Output is correct
26 Correct 140 ms 17680 KB Output is correct
27 Correct 172 ms 17784 KB Output is correct
28 Correct 361 ms 23220 KB Output is correct
29 Correct 2486 ms 87332 KB Output is correct
30 Correct 359 ms 23348 KB Output is correct
31 Correct 2442 ms 87496 KB Output is correct
32 Correct 1227 ms 87424 KB Output is correct
33 Correct 1240 ms 87492 KB Output is correct
34 Correct 2162 ms 87440 KB Output is correct
35 Correct 8 ms 12928 KB Output is correct
36 Correct 8 ms 12928 KB Output is correct
37 Correct 126 ms 16376 KB Output is correct
38 Correct 1125 ms 87560 KB Output is correct
39 Correct 1330 ms 87404 KB Output is correct
40 Correct 1726 ms 87444 KB Output is correct
41 Correct 2084 ms 87416 KB Output is correct
42 Correct 2407 ms 87676 KB Output is correct
43 Correct 1151 ms 87532 KB Output is correct
44 Correct 1111 ms 87456 KB Output is correct
45 Correct 958 ms 87276 KB Output is correct
46 Correct 1054 ms 87368 KB Output is correct
47 Correct 1259 ms 87556 KB Output is correct
48 Correct 9 ms 12928 KB Output is correct
49 Correct 8 ms 12928 KB Output is correct
50 Correct 9 ms 12928 KB Output is correct
51 Correct 8 ms 12928 KB Output is correct
52 Correct 9 ms 12928 KB Output is correct
53 Correct 12 ms 13056 KB Output is correct
54 Correct 31 ms 13568 KB Output is correct
55 Correct 31 ms 13696 KB Output is correct
56 Correct 30 ms 13696 KB Output is correct
57 Correct 32 ms 13696 KB Output is correct
58 Correct 30 ms 13696 KB Output is correct
59 Correct 29 ms 13696 KB Output is correct
60 Correct 33 ms 13696 KB Output is correct
61 Correct 109 ms 16376 KB Output is correct
62 Correct 201 ms 23092 KB Output is correct
63 Correct 917 ms 87404 KB Output is correct
64 Correct 1152 ms 87232 KB Output is correct
65 Correct 1615 ms 87276 KB Output is correct
66 Correct 2035 ms 87588 KB Output is correct
67 Correct 2444 ms 87224 KB Output is correct
68 Correct 1103 ms 87552 KB Output is correct
69 Correct 1638 ms 87404 KB Output is correct
70 Correct 1130 ms 87276 KB Output is correct
71 Correct 1286 ms 87404 KB Output is correct
72 Correct 1701 ms 87252 KB Output is correct
73 Correct 2099 ms 87324 KB Output is correct
74 Correct 1002 ms 87404 KB Output is correct
75 Correct 1183 ms 87720 KB Output is correct