oj.uz

Submission #892377

# Submission time Handle Problem Language Result Execution time Memory
892377 2023-12-25T09:20:18 Z abcvuitunggio Comparing Plants (IOI20_plants) C++17
27 / 100
 4000 ms 13524 KB 
#include "plants.h"
#include <bits/stdc++.h>
using namespace std;
const int INF=1e9;
struct T{
    int mn,pos;
}st[800001];
T operator +(T a, T b){
    return (a.mn>b.mn?b:a);
}
int n,k,lazy[800001],p[200001];
vector <int> a;
void down(int node, int l, int r){
    if (!lazy[node]||l==r)
        return;
    st[node<<1].mn+=lazy[node];
    st[node<<1|1].mn+=lazy[node];
    lazy[node<<1]+=lazy[node];
    lazy[node<<1|1]+=lazy[node];
    lazy[node]=0;
}
void build(int node, int l, int r){
    if (l==r){
        st[node]={a[l],l};
        return;
    }
    int mid=(l+r)>>1;
    build(node<<1,l,mid);
    build(node<<1|1,mid+1,r);
    st[node]=st[node<<1]+st[node<<1|1];
}
void update(int node, int l, int r, int u, int v, int val){
    if (l>v||r<u||u>v)
        return;
    if (l>=u&&r<=v){
        st[node].mn+=val;
        lazy[node]+=val;
        return;
    }
    down(node,l,r);
    int mid=(l+r)>>1;
    update(node<<1,l,mid,u,v,val);
    update(node<<1|1,mid+1,r,u,v,val);
    st[node]=st[node<<1]+st[node<<1|1];
}
T get(int node, int l, int r, int u, int v){
    if (l>v||r<u||u>v)
        return {INF,0};
    if (l>=u&&r<=v)
        return st[node];
    down(node,l,r);
    int mid=(l+r)>>1;
    return get(node<<1,l,mid,u,v)+get(node<<1|1,mid+1,r,u,v);
}
int calc(int j){
    T t={INF,0};
    if (j<k)
        t=get(1,0,n-1,0,j-1)+get(1,0,n-1,n+j-k+1,n-1);
    else
        t=get(1,0,n-1,j-k+1,j-1);
    if (t.mn)
        return -1;
    return t.pos;
}
T get(int l, int r){
    l=(l%n+n)%n;
    r=(r%n+n)%n;
    if (l<=r)
        return get(1,0,n-1,l,r);
    else{
        T t=get(1,0,n-1,l,n-1);
        if (!t.mn)
            return t;
        else
            return get(1,0,n-1,0,r);
    }
}
void init(int K, vector <int> r){
    k=K;
    a=r;
    n=a.size();
    build(1,0,n-1);
    int j=st[1].pos;
    while (true){
        int tmp=calc(j);
        if (tmp==-1)
            break;
        j=tmp;
    }
    p[j]=n-1;
    if (j<k){
        update(1,0,n-1,0,j-1,-1);
        update(1,0,n-1,n+j-k+1,n-1,-1);
    }
    else
        update(1,0,n-1,j-k+1,j-1,-1);
    update(1,0,n-1,j,j,INF);
    for (int i=n-2;i;i--){
        j=st[1].pos;
        assert(!get(1,0,n-1,j,j).mn);
        while (true){
            int tmp=calc(j);
            if (tmp==-1)
                break;
            j=tmp;
        }
        p[j]=i;
        if (j<k){
            update(1,0,n-1,0,j-1,-1);
            update(1,0,n-1,n+j-k+1,n-1,-1);
        }
        else
            update(1,0,n-1,j-k+1,j-1,-1);
        update(1,0,n-1,j,j,INF);
    }
}
int compare_plants(int x, int y){
	return (p[x]>p[y]?1:(p[x]<p[y]?-1:0));
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Incorrect 0 ms 2396 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 3 ms 2396 KB Output is correct
7 Correct 50 ms 5456 KB Output is correct
8 Correct 2 ms 2392 KB Output is correct
9 Correct 3 ms 2392 KB Output is correct
10 Correct 49 ms 5464 KB Output is correct
11 Correct 46 ms 5212 KB Output is correct
12 Correct 46 ms 5468 KB Output is correct
13 Correct 49 ms 5456 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 3 ms 2396 KB Output is correct
7 Correct 50 ms 5456 KB Output is correct
8 Correct 2 ms 2392 KB Output is correct
9 Correct 3 ms 2392 KB Output is correct
10 Correct 49 ms 5464 KB Output is correct
11 Correct 46 ms 5212 KB Output is correct
12 Correct 46 ms 5468 KB Output is correct
13 Correct 49 ms 5456 KB Output is correct
14 Correct 76 ms 7720 KB Output is correct
15 Correct 447 ms 13524 KB Output is correct
16 Correct 76 ms 7748 KB Output is correct
17 Correct 439 ms 13520 KB Output is correct
18 Correct 312 ms 13396 KB Output is correct
19 Correct 319 ms 13316 KB Output is correct
20 Correct 407 ms 13396 KB Output is correct

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 55 ms 5232 KB Output is correct
4 Execution timed out 4066 ms 11788 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2408 KB Output is correct
3 Incorrect 0 ms 2396 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Incorrect 1 ms 2392 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Incorrect 0 ms 2396 KB Output isn't correct
5 Halted 0 ms 0 KB -