oj.uz

답안 #147807

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
147807 2019-08-30T17:38:04 Z Bodo171 3단 점프 (JOI19_jumps) C++14
100 / 100
 1214 ms 101608 KB 
#include <bits/stdc++.h>

using namespace std;

const int nmax=500005;
vector< pair<int,int> > l[nmax],qr[nmax];
int v[nmax],st[nmax],an[nmax];
int n,i,j,u,q,L,R;
struct node
{
    int L,R,LR;
}arb[4*nmax],ans;
void add(int x,int y)
{
    if(2*y-x<=n)
     l[x].push_back({2*y-x,v[x]+v[y]});
}
void mrg(node &A,node B,node C)
{
    A.L=max(B.L,C.L);
    A.R=max(B.R,C.R);
    A.LR=max(B.LR,C.LR);
    A.LR=max(A.LR,B.L+C.R);
}
void update(int nod,int l,int r,int poz,int val,int tip)
{
    if(l==r)
    {
        if(tip) arb[nod].R=max(arb[nod].R,val);
        else arb[nod].L=max(arb[nod].L,val);
        arb[nod].LR=arb[nod].L+arb[nod].R;
        return;
    }
    int m=(l+r)/2;
    if(poz<=m) update(2*nod,l,m,poz,val,tip);
    else update(2*nod+1,m+1,r,poz,val,tip);
    mrg(arb[nod],arb[2*nod],arb[2*nod+1]);
}
void query(int nod,int l,int r,int st,int dr)
{
    if(st<=l&&r<=dr)
    {
        mrg(ans,ans,arb[nod]);
        return;
    }
    int m=(l+r)/2;
    if(st<=m) query(2*nod,l,m,st,dr);
    if(m<dr)  query(2*nod+1,m+1,r,st,dr);
}
int Q(int S,int D)
{
    ans={-(1<<29),-(1<<29),-(1<<29)};
    query(1,1,n,S,D);
    return ans.LR;
}
int main()
{
    //freopen("data.in","r",stdin);
    ios_base::sync_with_stdio(false);
    cin>>n;
    for(i=1;i<=n;i++)
    {
        cin>>v[i];
        while(u>0&&v[i]>v[st[u]])
        {
            add(st[u],i);
            u--;
        }
        if(u) add(st[u],i);
        st[++u]=i;
    }
    cin>>q;
    for(i=1;i<=q;i++)
    {
        cin>>L>>R;
        qr[L].push_back({R,i});
    }
    for(i=1;i<=4*n;i++)
    {
        arb[i].L=arb[i].R=arb[i].LR=-(1<<29);
    }
    for(i=n;i>=1;i--)
    {
        update(1,1,n,i,v[i],1);
        for(auto it: l[i])
            update(1,1,n,it.first,it.second,0);
        for(auto it: qr[i])
            an[it.second]=Q(i,it.first);
    }
    for(i=1;i<=q;i++)
        cout<<an[i]<<'\n';
    return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 23800 KB Output is correct
2 Correct 24 ms 23928 KB Output is correct
3 Correct 24 ms 24056 KB Output is correct
4 Correct 23 ms 23800 KB Output is correct
5 Correct 23 ms 23928 KB Output is correct
6 Correct 24 ms 23928 KB Output is correct
7 Correct 24 ms 23928 KB Output is correct
8 Correct 23 ms 23800 KB Output is correct
9 Correct 23 ms 24060 KB Output is correct
10 Correct 24 ms 23928 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 23800 KB Output is correct
2 Correct 24 ms 23928 KB Output is correct
3 Correct 24 ms 24056 KB Output is correct
4 Correct 23 ms 23800 KB Output is correct
5 Correct 23 ms 23928 KB Output is correct
6 Correct 24 ms 23928 KB Output is correct
7 Correct 24 ms 23928 KB Output is correct
8 Correct 23 ms 23800 KB Output is correct
9 Correct 23 ms 24060 KB Output is correct
10 Correct 24 ms 23928 KB Output is correct
11 Correct 311 ms 42364 KB Output is correct
12 Correct 339 ms 42496 KB Output is correct
13 Correct 339 ms 42360 KB Output is correct
14 Correct 324 ms 42488 KB Output is correct
15 Correct 322 ms 42380 KB Output is correct
16 Correct 331 ms 41724 KB Output is correct
17 Correct 317 ms 41692 KB Output is correct
18 Correct 326 ms 41720 KB Output is correct
19 Correct 321 ms 42212 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 211 ms 43256 KB Output is correct
2 Correct 151 ms 42076 KB Output is correct
3 Correct 151 ms 42844 KB Output is correct
4 Correct 212 ms 43384 KB Output is correct
5 Correct 211 ms 43256 KB Output is correct
6 Correct 204 ms 42540 KB Output is correct
7 Correct 204 ms 42616 KB Output is correct
8 Correct 204 ms 42656 KB Output is correct
9 Correct 212 ms 42964 KB Output is correct

Subtask #4
54.0 / 54.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 23800 KB Output is correct
2 Correct 24 ms 23928 KB Output is correct
3 Correct 24 ms 24056 KB Output is correct
4 Correct 23 ms 23800 KB Output is correct
5 Correct 23 ms 23928 KB Output is correct
6 Correct 24 ms 23928 KB Output is correct
7 Correct 24 ms 23928 KB Output is correct
8 Correct 23 ms 23800 KB Output is correct
9 Correct 23 ms 24060 KB Output is correct
10 Correct 24 ms 23928 KB Output is correct
11 Correct 311 ms 42364 KB Output is correct
12 Correct 339 ms 42496 KB Output is correct
13 Correct 339 ms 42360 KB Output is correct
14 Correct 324 ms 42488 KB Output is correct
15 Correct 322 ms 42380 KB Output is correct
16 Correct 331 ms 41724 KB Output is correct
17 Correct 317 ms 41692 KB Output is correct
18 Correct 326 ms 41720 KB Output is correct
19 Correct 321 ms 42212 KB Output is correct
20 Correct 211 ms 43256 KB Output is correct
21 Correct 151 ms 42076 KB Output is correct
22 Correct 151 ms 42844 KB Output is correct
23 Correct 212 ms 43384 KB Output is correct
24 Correct 211 ms 43256 KB Output is correct
25 Correct 204 ms 42540 KB Output is correct
26 Correct 204 ms 42616 KB Output is correct
27 Correct 204 ms 42656 KB Output is correct
28 Correct 212 ms 42964 KB Output is correct
29 Correct 1152 ms 96064 KB Output is correct
30 Correct 1020 ms 92860 KB Output is correct
31 Correct 997 ms 94584 KB Output is correct
32 Correct 1214 ms 96120 KB Output is correct
33 Correct 1171 ms 96036 KB Output is correct
34 Correct 1148 ms 93632 KB Output is correct
35 Correct 1135 ms 93268 KB Output is correct
36 Correct 1138 ms 93188 KB Output is correct
37 Correct 1127 ms 94668 KB Output is correct
38 Correct 844 ms 101608 KB Output is correct
39 Correct 846 ms 101604 KB Output is correct
40 Correct 819 ms 98228 KB Output is correct
41 Correct 835 ms 97856 KB Output is correct
42 Correct 814 ms 97780 KB Output is correct
43 Correct 826 ms 99408 KB Output is correct
44 Correct 895 ms 100984 KB Output is correct
45 Correct 907 ms 100948 KB Output is correct
46 Correct 878 ms 97940 KB Output is correct
47 Correct 860 ms 97496 KB Output is correct
48 Correct 868 ms 97340 KB Output is correct
49 Correct 881 ms 99528 KB Output is correct
50 Correct 1000 ms 99132 KB Output is correct
51 Correct 962 ms 99044 KB Output is correct
52 Correct 951 ms 96704 KB Output is correct
53 Correct 966 ms 96244 KB Output is correct
54 Correct 985 ms 96260 KB Output is correct
55 Correct 959 ms 97924 KB Output is correct