답안 #558558

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
558558	2022-05-07T14:18:10 Z	stefantaga	Feast (NOI19_feast)	C++14	100 / 100	341 ms	12772 KB

feast

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
int n,i,k;
ll v[300005],din[300005],cnt[300005],sum[300005];
ll suma(int st,int dr)
{
    return sum[dr]-sum[st-1];
}
ll ok (ll mij)
{
    deque <int> st;
    st.push_back(0);
    for (int i=1; i<=n; i++)
    {
        din[i]=din[i-1];
        cnt[i]=cnt[i-1];
        if (din[i]<din[i-1]+mij)
        {
            din[i]=din[i-1]+mij;
            cnt[i]=cnt[i-1]+1;
        }
        if (st.empty())
        {
            if (din[i]<v[i]+din[i-1]+mij)
            {
                din[i]=v[i]+din[i-1]+mij;
                cnt[i]=1+cnt[i-1];
            }
        }
        else
        {
            if (din[i]<din[st.front()]+suma(st.front()+1,i)+mij)
            {
                din[i]=din[st.front()]+suma(st.front()+1,i)+mij;
                cnt[i]=1+cnt[st.front()];
            }
        }
        while (!st.empty()&&din[st.back()]+suma(st.back()+1,i+1)<=v[i+1]+din[i])
        {
            st.pop_back();
        }
        st.push_back(i);
    }
    return cnt[n];
}
ll st,dr,sol;
int main()
{
    ios_base :: sync_with_stdio(false);
    cin.tie(0);
#ifdef HOME
    ifstream cin("date.in");
    ofstream cout("date.out");
#endif // HOME
    cin>>n>>k;
    for (i=1; i<=n; i++)
    {
        cin>>v[i];
        sum[i]=sum[i-1]+v[i];
    }
    st=-1e16;
    dr=1e16;
    while (st<=dr)
    {
        ll mij = (st+dr)/2;
        auto salut = ok(mij);
        if (salut>=k)
        {
            sol=mij;
            dr=mij-1;
        }
        else
        {
            st=mij+1;
        }
    }
    deque <int> st;
    st.push_back(0);
    for (int i=1; i<=n; i++)
    {
        din[i]=din[i-1];
        cnt[i]=cnt[i-1];
        if (din[i]<din[i-1]+sol)
        {
            din[i]=din[i-1]+sol;
            cnt[i]=cnt[i-1]+1;
        }
        if (st.empty())
        {
            if (din[i]<v[i]+din[i-1]+sol)
            {
                din[i]=v[i]+din[i-1]+sol;
                cnt[i]=1+cnt[i-1];
            }
        }
        else
        {
            int poz=st.front();
            if (din[i]<din[poz]+suma(poz+1,i)+sol)
            {
                din[i]=din[poz]+suma(poz+1,i)+sol;
                cnt[i]=1+cnt[poz];
            }
        }
        while (!st.empty()&&din[st.back()]+suma(st.back()+1,i+1)<=v[i+1]+din[i])
        {
            st.pop_back();
        }
        st.push_back(i);
    }
    cout<<din[n]-cnt[n]*sol;
    return 0;
}

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	162 ms	10572 KB	Output is correct
2	Correct	169 ms	10760 KB	Output is correct
3	Correct	173 ms	10828 KB	Output is correct
4	Correct	173 ms	10804 KB	Output is correct
5	Correct	176 ms	10700 KB	Output is correct
6	Correct	168 ms	10572 KB	Output is correct
7	Correct	172 ms	10576 KB	Output is correct
8	Correct	170 ms	10724 KB	Output is correct
9	Correct	170 ms	10564 KB	Output is correct
10	Correct	169 ms	10740 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	170 ms	10116 KB	Output is correct
2	Correct	184 ms	10632 KB	Output is correct
3	Correct	175 ms	10472 KB	Output is correct
4	Correct	167 ms	10504 KB	Output is correct
5	Correct	185 ms	10696 KB	Output is correct
6	Correct	171 ms	10564 KB	Output is correct
7	Correct	168 ms	10764 KB	Output is correct
8	Correct	182 ms	10948 KB	Output is correct
9	Correct	175 ms	10612 KB	Output is correct
10	Correct	166 ms	10400 KB	Output is correct

Subtask #3
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	315 ms	9712 KB	Output is correct
2	Correct	318 ms	12480 KB	Output is correct
3	Correct	322 ms	12576 KB	Output is correct
4	Correct	312 ms	12468 KB	Output is correct
5	Correct	317 ms	12492 KB	Output is correct
6	Correct	316 ms	12688 KB	Output is correct
7	Correct	323 ms	12704 KB	Output is correct
8	Correct	312 ms	12532 KB	Output is correct
9	Correct	326 ms	12736 KB	Output is correct
10	Correct	320 ms	12772 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	328 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	0 ms	328 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct

Subtask #5
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	328 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	0 ms	328 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 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	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct

Subtask #6
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	328 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	0 ms	328 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 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	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	2 ms	340 KB	Output is correct
22	Correct	3 ms	340 KB	Output is correct
23	Correct	3 ms	340 KB	Output is correct
24	Correct	2 ms	340 KB	Output is correct
25	Correct	3 ms	336 KB	Output is correct
26	Correct	3 ms	340 KB	Output is correct
27	Correct	3 ms	364 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	340 KB	Output is correct
30	Correct	3 ms	340 KB	Output is correct

Subtask #7
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	162 ms	10572 KB	Output is correct
2	Correct	169 ms	10760 KB	Output is correct
3	Correct	173 ms	10828 KB	Output is correct
4	Correct	173 ms	10804 KB	Output is correct
5	Correct	176 ms	10700 KB	Output is correct
6	Correct	168 ms	10572 KB	Output is correct
7	Correct	172 ms	10576 KB	Output is correct
8	Correct	170 ms	10724 KB	Output is correct
9	Correct	170 ms	10564 KB	Output is correct
10	Correct	169 ms	10740 KB	Output is correct
11	Correct	170 ms	10116 KB	Output is correct
12	Correct	184 ms	10632 KB	Output is correct
13	Correct	175 ms	10472 KB	Output is correct
14	Correct	167 ms	10504 KB	Output is correct
15	Correct	185 ms	10696 KB	Output is correct
16	Correct	171 ms	10564 KB	Output is correct
17	Correct	168 ms	10764 KB	Output is correct
18	Correct	182 ms	10948 KB	Output is correct
19	Correct	175 ms	10612 KB	Output is correct
20	Correct	166 ms	10400 KB	Output is correct
21	Correct	315 ms	9712 KB	Output is correct
22	Correct	318 ms	12480 KB	Output is correct
23	Correct	322 ms	12576 KB	Output is correct
24	Correct	312 ms	12468 KB	Output is correct
25	Correct	317 ms	12492 KB	Output is correct
26	Correct	316 ms	12688 KB	Output is correct
27	Correct	323 ms	12704 KB	Output is correct
28	Correct	312 ms	12532 KB	Output is correct
29	Correct	326 ms	12736 KB	Output is correct
30	Correct	320 ms	12772 KB	Output is correct
31	Correct	0 ms	340 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	1 ms	328 KB	Output is correct
34	Correct	1 ms	332 KB	Output is correct
35	Correct	1 ms	340 KB	Output is correct
36	Correct	1 ms	340 KB	Output is correct
37	Correct	0 ms	328 KB	Output is correct
38	Correct	1 ms	340 KB	Output is correct
39	Correct	1 ms	340 KB	Output is correct
40	Correct	0 ms	340 KB	Output is correct
41	Correct	1 ms	340 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	340 KB	Output is correct
44	Correct	1 ms	340 KB	Output is correct
45	Correct	1 ms	340 KB	Output is correct
46	Correct	1 ms	340 KB	Output is correct
47	Correct	1 ms	340 KB	Output is correct
48	Correct	1 ms	340 KB	Output is correct
49	Correct	1 ms	340 KB	Output is correct
50	Correct	1 ms	340 KB	Output is correct
51	Correct	2 ms	340 KB	Output is correct
52	Correct	3 ms	340 KB	Output is correct
53	Correct	3 ms	340 KB	Output is correct
54	Correct	2 ms	340 KB	Output is correct
55	Correct	3 ms	336 KB	Output is correct
56	Correct	3 ms	340 KB	Output is correct
57	Correct	3 ms	364 KB	Output is correct
58	Correct	2 ms	376 KB	Output is correct
59	Correct	2 ms	340 KB	Output is correct
60	Correct	3 ms	340 KB	Output is correct
61	Correct	291 ms	12464 KB	Output is correct
62	Correct	293 ms	12752 KB	Output is correct
63	Correct	316 ms	12380 KB	Output is correct
64	Correct	309 ms	12648 KB	Output is correct
65	Correct	315 ms	12648 KB	Output is correct
66	Correct	307 ms	12620 KB	Output is correct
67	Correct	315 ms	12428 KB	Output is correct
68	Correct	341 ms	12668 KB	Output is correct
69	Correct	313 ms	12360 KB	Output is correct
70	Correct	316 ms	12364 KB	Output is correct

답안 #558558

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 8.0 / 8.0

Subtask #3 18.0 / 18.0

Subtask #4 10.0 / 10.0

Subtask #5 11.0 / 11.0

Subtask #6 20.0 / 20.0

Subtask #7 29.0 / 29.0

Subtask #1
4.0 / 4.0

Subtask #2
8.0 / 8.0

Subtask #3
18.0 / 18.0

Subtask #4
10.0 / 10.0

Subtask #5
11.0 / 11.0

Subtask #6
20.0 / 20.0

Subtask #7
29.0 / 29.0