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Submission #1113135

# Submission time Handle Problem Language Result Execution time Memory
1113135 2024-11-15T21:02:59 Z ttamx Growing Vegetables is Fun 5 (JOI24_vegetables5) C++17
30 / 100
 5000 ms 69304 KB 
#include<bits/stdc++.h>

using namespace std;

const int N=3e5+5;
const int K=1<<21;
const int INF=INT_MAX/2;

int n;
int a[3*N],b[N],c[N];
int pos[3*N];
int l[3*N],r[3*N];
bool d1[3*N],d2[3*N];

struct Info{
    int sum,pre,suf,mx;
    friend Info operator+(const Info &l,const Info &r){
        return {l.sum+r.sum,max(l.pre,l.sum+r.pre),max(r.suf,r.sum+l.suf),max({l.mx,r.mx,l.suf+r.pre})};
    }
};

struct SegTree{
    Info t[K];
    void build(int l,int r,int i){
        t[i]={0,-INF,-INF,-INF};
        if(l==r)return;
        int m=(l+r)/2;
        build(l,m,i*2);
        build(m+1,r,i*2+1);
    }
    void build(){
        build(1,2*n,1);
    }
    void modify(int l,int r,int i,int x,Info v){
        if(l==r)return void(t[i]=v);
        int m=(l+r)/2;
        if(x<=m)modify(l,m,i*2,x,v);
        else modify(m+1,r,i*2+1,x,v);
        t[i]=t[i*2]+t[i*2+1];
    }
    void modify(int x,Info v){
        modify(1,2*n,1,x,v);
    }
    bool query(){
        return t[1].mx<=0;
    }
}seg;

bool check(int k){
    for(int i=1;i<=2*n;i++){
        l[i]=lower_bound(b+1,b+n+1,a[i]-k)-b-1;
        r[i]=upper_bound(b+1,b+n+1,a[i]+k)-b-1;
    }
    for(int i=2*n+1;i<=3*n;i++){
        l[i]=l[i-2*n];
        r[i]=r[i-2*n];
    }
    seg.build();
    for(int i=1;i<=n;i++){
        seg.modify(pos[i],{1,1-r[i],1+l[i],1+l[i]-r[i]});
    }
    for(int i=n+1;i<=3*n;i++){
        seg.modify(pos[i-n],{0,-INF,-INF,-INF});
        seg.modify(pos[i],{1,1-r[i],1+l[i],1+l[i]-r[i]});
        d1[i]=seg.query();
    }
    for(int i=1;i<=2*n;i++){
        l[i]=lower_bound(c+1,c+n+1,a[i]-k)-c-1;
        r[i]=upper_bound(c+1,c+n+1,a[i]+k)-c-1;
    }
    for(int i=2*n+1;i<=3*n;i++){
        l[i]=l[i-2*n];
        r[i]=r[i-2*n];
    }
    seg.build();
    for(int i=1;i<=n;i++){
        seg.modify(pos[i],{1,1-r[i],1+l[i],1+l[i]-r[i]});
    }
    for(int i=n+1;i<=3*n;i++){
        seg.modify(pos[i-n],{0,-INF,-INF,-INF});
        seg.modify(pos[i],{1,1-r[i],1+l[i],1+l[i]-r[i]});
        d2[i]=seg.query();
    }
    for(int i=n+1;i<=2*n;i++){
        if((d1[i]&&d2[i+n])||(d2[i]&&d1[i+n])){
            return true;
        }
    }
    return false;
}

int main(){
    cin >> n;
    vector<pair<int,int>> vals;
    for(int i=1;i<=2*n;i++){
        cin >> a[i];
        vals.emplace_back(a[i],i);
    }
    sort(vals.begin(),vals.end());
    for(int i=0;i<2*n;i++){
        pos[vals[i].second]=i+1;
    }
    for(int i=2*n+1;i<=3*n;i++){
        a[i]=a[i-2*n];
        pos[i]=pos[i-2*n];
    }
    for(int i=1;i<=n;i++){
        cin >> b[i];
    }
    for(int i=1;i<=n;i++){
        cin >> c[i];
    }
    sort(b+1,b+n+1);
    sort(c+1,c+n+1);
    int l=0,r=1'000'000'000;
    while(l<r){
        int m=(l+r)/2;
        if(check(m))r=m;
        else l=m+1;
    }
    cout << l << "\n";
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 14672 KB Output is correct
2 Correct 2 ms 14672 KB Output is correct
3 Correct 3 ms 14796 KB Output is correct
4 Correct 3 ms 14672 KB Output is correct
5 Correct 5 ms 14672 KB Output is correct
6 Correct 2 ms 14928 KB Output is correct
7 Correct 3 ms 14672 KB Output is correct
8 Correct 2 ms 14672 KB Output is correct
9 Correct 3 ms 14672 KB Output is correct
10 Correct 2 ms 14780 KB Output is correct
11 Correct 2 ms 14672 KB Output is correct
12 Correct 2 ms 14672 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 14672 KB Output is correct
2 Correct 2 ms 14672 KB Output is correct
3 Correct 3 ms 14796 KB Output is correct
4 Correct 3 ms 14672 KB Output is correct
5 Correct 5 ms 14672 KB Output is correct
6 Correct 2 ms 14928 KB Output is correct
7 Correct 3 ms 14672 KB Output is correct
8 Correct 2 ms 14672 KB Output is correct
9 Correct 3 ms 14672 KB Output is correct
10 Correct 2 ms 14780 KB Output is correct
11 Correct 2 ms 14672 KB Output is correct
12 Correct 2 ms 14672 KB Output is correct
13 Correct 2 ms 14672 KB Output is correct
14 Correct 2 ms 14672 KB Output is correct
15 Correct 3 ms 14672 KB Output is correct
16 Correct 2 ms 14672 KB Output is correct
17 Correct 3 ms 14672 KB Output is correct
18 Correct 2 ms 14672 KB Output is correct
19 Correct 2 ms 14784 KB Output is correct
20 Correct 3 ms 14672 KB Output is correct
21 Correct 3 ms 14672 KB Output is correct
22 Correct 2 ms 14672 KB Output is correct
23 Correct 3 ms 14672 KB Output is correct
24 Correct 3 ms 14672 KB Output is correct
25 Correct 3 ms 14672 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 14672 KB Output is correct
2 Correct 2 ms 14672 KB Output is correct
3 Correct 3 ms 14796 KB Output is correct
4 Correct 3 ms 14672 KB Output is correct
5 Correct 5 ms 14672 KB Output is correct
6 Correct 2 ms 14928 KB Output is correct
7 Correct 3 ms 14672 KB Output is correct
8 Correct 2 ms 14672 KB Output is correct
9 Correct 3 ms 14672 KB Output is correct
10 Correct 2 ms 14780 KB Output is correct
11 Correct 2 ms 14672 KB Output is correct
12 Correct 2 ms 14672 KB Output is correct
13 Correct 2 ms 14672 KB Output is correct
14 Correct 2 ms 14672 KB Output is correct
15 Correct 3 ms 14672 KB Output is correct
16 Correct 2 ms 14672 KB Output is correct
17 Correct 3 ms 14672 KB Output is correct
18 Correct 2 ms 14672 KB Output is correct
19 Correct 2 ms 14784 KB Output is correct
20 Correct 3 ms 14672 KB Output is correct
21 Correct 3 ms 14672 KB Output is correct
22 Correct 2 ms 14672 KB Output is correct
23 Correct 3 ms 14672 KB Output is correct
24 Correct 3 ms 14672 KB Output is correct
25 Correct 3 ms 14672 KB Output is correct
26 Correct 67 ms 15068 KB Output is correct
27 Correct 70 ms 14928 KB Output is correct
28 Correct 63 ms 14928 KB Output is correct
29 Correct 4 ms 14672 KB Output is correct
30 Correct 74 ms 14928 KB Output is correct
31 Correct 75 ms 14928 KB Output is correct
32 Correct 35 ms 14672 KB Output is correct
33 Correct 16 ms 14864 KB Output is correct
34 Correct 67 ms 14928 KB Output is correct
35 Correct 65 ms 15096 KB Output is correct
36 Correct 92 ms 14928 KB Output is correct
37 Correct 59 ms 14928 KB Output is correct
38 Correct 63 ms 14928 KB Output is correct
39 Correct 67 ms 15076 KB Output is correct
40 Correct 66 ms 14928 KB Output is correct

Subtask #4
0 / 37.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5044 ms 69304 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 14672 KB Output is correct
2 Correct 2 ms 14672 KB Output is correct
3 Correct 3 ms 14796 KB Output is correct
4 Correct 3 ms 14672 KB Output is correct
5 Correct 5 ms 14672 KB Output is correct
6 Correct 2 ms 14928 KB Output is correct
7 Correct 3 ms 14672 KB Output is correct
8 Correct 2 ms 14672 KB Output is correct
9 Correct 3 ms 14672 KB Output is correct
10 Correct 2 ms 14780 KB Output is correct
11 Correct 2 ms 14672 KB Output is correct
12 Correct 2 ms 14672 KB Output is correct
13 Correct 2 ms 14672 KB Output is correct
14 Correct 2 ms 14672 KB Output is correct
15 Correct 3 ms 14672 KB Output is correct
16 Correct 2 ms 14672 KB Output is correct
17 Correct 3 ms 14672 KB Output is correct
18 Correct 2 ms 14672 KB Output is correct
19 Correct 2 ms 14784 KB Output is correct
20 Correct 3 ms 14672 KB Output is correct
21 Correct 3 ms 14672 KB Output is correct
22 Correct 2 ms 14672 KB Output is correct
23 Correct 3 ms 14672 KB Output is correct
24 Correct 3 ms 14672 KB Output is correct
25 Correct 3 ms 14672 KB Output is correct
26 Correct 67 ms 15068 KB Output is correct
27 Correct 70 ms 14928 KB Output is correct
28 Correct 63 ms 14928 KB Output is correct
29 Correct 4 ms 14672 KB Output is correct
30 Correct 74 ms 14928 KB Output is correct
31 Correct 75 ms 14928 KB Output is correct
32 Correct 35 ms 14672 KB Output is correct
33 Correct 16 ms 14864 KB Output is correct
34 Correct 67 ms 14928 KB Output is correct
35 Correct 65 ms 15096 KB Output is correct
36 Correct 92 ms 14928 KB Output is correct
37 Correct 59 ms 14928 KB Output is correct
38 Correct 63 ms 14928 KB Output is correct
39 Correct 67 ms 15076 KB Output is correct
40 Correct 66 ms 14928 KB Output is correct
41 Execution timed out 5044 ms 69304 KB Time limit exceeded
42 Halted 0 ms 0 KB -