oj.uz

Submission #784430

# Submission time Handle Problem Language Result Execution time Memory
784430 2023-07-16T06:18:14 Z 12345678 Bitaro's travel (JOI23_travel) C++17
100 / 100
 199 ms 12988 KB 
#include <bits/stdc++.h>

using namespace std;

#define ll long long

const int nx=2e5+5;
int n, v[nx], q, s, l, r, dr[nx], dl[nx];
long long ans;
bool isl;

struct rsegtree
{
    int d[4*nx];
    void build(int l, int r, int i)
    {
        if (l==r) return void(d[i]=dr[l]);
        int md=(l+r)/2;
        build(l, md, 2*i);
        build(md+1, r, 2*i+1);
        d[i]=min(d[2*i], d[2*i+1]);
    }
    int query(int l, int r, int i, int ql, int qr, int vl)
    {
        if (qr<l||r<ql) return -1;
        if (ql<=l&&r<=qr&&vl<d[i]) return -1;
        if (l==r) return l;
        int md=(l+r)/2, tmp=query(l, md, 2*i, ql, qr, vl);
        if (tmp!=-1) return tmp;
        return query(md+1, r, 2*i+1, ql, qr, vl);
    }
} rs;

struct lsegtree
{
    int d[4*nx];
    void build(int l, int r, int i)
    {
        if (l==r) return void(d[i]=dl[l]);
        int md=(l+r)/2;
        build(l, md, 2*i);
        build(md+1, r, 2*i+1);
        d[i]=max(d[2*i], d[2*i+1]);
    }
    int query(int l, int r, int i, int ql, int qr, int vl)
    {
        if (qr<l||r<ql) return -1;
        if (ql<=l&&r<=qr&&vl>=d[i]) return -1;
        if (l==r) return l;
        int md=(l+r)/2, tmp=query(md+1, r, 2*i+1, ql, qr, vl);
        if (tmp!=-1) return tmp;
        return query(l, md, 2*i, ql, qr, vl);
    }
} ls;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n;
    v[0]=-1e9; v[n+1]=2e9;
    for (int i=1; i<=n; i++) cin>>v[i];
    for (int i=1; i<=n; i++) dr[i]=2*v[i]-v[i+1];
    for (int i=1; i<=n; i++) dl[i]=2*v[i]-v[i-1];
    rs.build(1, n, 1);
    ls.build(1, n, 1);
    cin>>q;
    while (q--)
    {
        cin>>s;
        int cl=lower_bound(v+1, v+n+1, s)-v;
        if (s-v[cl-1]<=v[cl]-s) l=r=cl-1, ans=s-v[cl-1];
        else l=r=cl, ans=v[cl]-s;
        isl=1;
        while (l!=1&&r!=n)
        {
            if (isl&&l!=1)
            {
                int np=ls.query(1, n, 1, 1, l, v[r+1]);
                ans+=v[r]-v[np];
                l=np;
            }
            if (!isl&&r!=n)
            {
                int np=rs.query(1, n, 1, r, n, v[l-1]);
                ans+=v[np]-v[l];
                r=np;
            }
            isl=!isl;
        }
        //cout<<l<<' '<<r<<' '<<ans<<'\n';
        if (r==n) ans+=v[r]-v[1];
        else ans+=v[n]-v[l];
        cout<<ans<<'\n';
    }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 19 ms 8696 KB Output is correct
18 Correct 19 ms 8604 KB Output is correct
19 Correct 19 ms 8620 KB Output is correct
20 Correct 19 ms 8688 KB Output is correct
21 Correct 19 ms 8660 KB Output is correct
22 Correct 19 ms 8588 KB Output is correct
23 Correct 19 ms 8680 KB Output is correct
24 Correct 19 ms 8656 KB Output is correct
25 Correct 19 ms 8728 KB Output is correct
26 Correct 19 ms 8616 KB Output is correct
27 Correct 19 ms 8612 KB Output is correct
28 Correct 19 ms 8708 KB Output is correct
29 Correct 19 ms 8640 KB Output is correct
30 Correct 18 ms 8652 KB Output is correct
31 Correct 19 ms 8584 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 102 ms 10688 KB Output is correct
8 Correct 109 ms 10808 KB Output is correct
9 Correct 102 ms 10664 KB Output is correct
10 Correct 102 ms 10604 KB Output is correct
11 Correct 102 ms 10688 KB Output is correct
12 Correct 103 ms 10624 KB Output is correct
13 Correct 31 ms 4144 KB Output is correct
14 Correct 30 ms 1540 KB Output is correct
15 Correct 95 ms 11724 KB Output is correct
16 Correct 95 ms 11740 KB Output is correct
17 Correct 95 ms 11716 KB Output is correct
18 Correct 33 ms 4172 KB Output is correct

Subtask #4
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 19 ms 8696 KB Output is correct
18 Correct 19 ms 8604 KB Output is correct
19 Correct 19 ms 8620 KB Output is correct
20 Correct 19 ms 8688 KB Output is correct
21 Correct 19 ms 8660 KB Output is correct
22 Correct 19 ms 8588 KB Output is correct
23 Correct 19 ms 8680 KB Output is correct
24 Correct 19 ms 8656 KB Output is correct
25 Correct 19 ms 8728 KB Output is correct
26 Correct 19 ms 8616 KB Output is correct
27 Correct 19 ms 8612 KB Output is correct
28 Correct 19 ms 8708 KB Output is correct
29 Correct 19 ms 8640 KB Output is correct
30 Correct 18 ms 8652 KB Output is correct
31 Correct 19 ms 8584 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 102 ms 10688 KB Output is correct
39 Correct 109 ms 10808 KB Output is correct
40 Correct 102 ms 10664 KB Output is correct
41 Correct 102 ms 10604 KB Output is correct
42 Correct 102 ms 10688 KB Output is correct
43 Correct 103 ms 10624 KB Output is correct
44 Correct 31 ms 4144 KB Output is correct
45 Correct 30 ms 1540 KB Output is correct
46 Correct 95 ms 11724 KB Output is correct
47 Correct 95 ms 11740 KB Output is correct
48 Correct 95 ms 11716 KB Output is correct
49 Correct 33 ms 4172 KB Output is correct
50 Correct 199 ms 12804 KB Output is correct
51 Correct 194 ms 12892 KB Output is correct
52 Correct 174 ms 12772 KB Output is correct
53 Correct 148 ms 12748 KB Output is correct
54 Correct 154 ms 12988 KB Output is correct
55 Correct 148 ms 12748 KB Output is correct
56 Correct 85 ms 12696 KB Output is correct
57 Correct 84 ms 12836 KB Output is correct
58 Correct 85 ms 12640 KB Output is correct