답안 #978798

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
978798	2024-05-09T17:21:46 Z	LOLOLO	K개의 묶음 (IZhO14_blocks)	C++17	100 / 100	848 ms	19724 KB

blocks

#include <bits/stdc++.h>
#define ll long long
using namespace std;
 
#define           f     first
#define           s     second
#define           pb    push_back
#define           ep    emplace
#define           eb    emplace_back
#define           lb    lower_bound
#define           ub    upper_bound
#define       all(x)    x.begin(), x.end()
#define      rall(x)    x.rbegin(), x.rend()
#define   uniquev(v)    sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define     mem(f,x)    memset(f , x , sizeof(f))
#define        sz(x)    (int)(x).size()
#define  __lcm(a, b)    (1ll * ((a) / __gcd((a), (b))) * (b))
#define          mxx    *max_element
#define          mnn    *min_element
#define    cntbit(x)    __builtin_popcountll(x)
#define       len(x)    (int)(x.length())
 
const int N = 1e5 + 10;
ll f[N], a[N];
ll sp[N][20], n, k;
int lg[N];

void build(int id) {
    for (int i = 0; i <= n; i++) {
        sp[i][0] = f[i];
    }

    for (int j = 1; j < 20; j++) {
        for (int i = 0; i + (1 << j) <= n + 1; i++) {
            sp[i][j] = min(sp[i][j - 1], sp[i + (1 << (j - 1))][j - 1]);
        }
    }
}

ll range(int l, int r, int id) {
    if (l > r)
        return 1e16;

    int t = lg[r - l + 1];
    return min(sp[l][t], sp[r - (1 << t) + 1][t]);
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    for (int i = 2; i < N; i++)
        lg[i] = lg[i / 2] + 1;

    mem(f, 0x3f);
    cin >> n >> k;

    f[0] = 0;
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
    }

    for (int j = 1; j <= k; j++) {
        build(j - 1);
        stack <int> st;
        vector <ll> pr;

        for (int i = 0; i <= n; i++) {
            while (sz(st) && a[i] >= a[st.top()]) {
                st.pop();
                pr.pop_back();
            }

            int lst = sz(st) ? st.top() : 0;
            ll nxt = range(lst, i - 1, j - 1) + a[i];
            if (sz(pr))
                nxt = min(nxt, pr.back());

            f[i] = nxt;
            st.push(i);
            ll v = sz(pr) ? pr.back() : 1e18;
            pr.pb(min(v, range(lst, i - 1, j - 1) + a[i])); 
        }
    }

    cout << f[n] << '\n';
} 

// 2 2
// 1 2

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	5464 KB	Output is correct
2	Correct	1 ms	5468 KB	Output is correct
3	Correct	1 ms	5468 KB	Output is correct
4	Correct	1 ms	5468 KB	Output is correct
5	Correct	1 ms	5468 KB	Output is correct
6	Correct	1 ms	5468 KB	Output is correct
7	Correct	1 ms	5468 KB	Output is correct
8	Correct	1 ms	5468 KB	Output is correct
9	Correct	1 ms	5468 KB	Output is correct
10	Correct	1 ms	5468 KB	Output is correct
11	Correct	1 ms	5464 KB	Output is correct
12	Correct	1 ms	5468 KB	Output is correct
13	Correct	1 ms	5468 KB	Output is correct
14	Correct	1 ms	5468 KB	Output is correct
15	Correct	1 ms	5468 KB	Output is correct
16	Correct	1 ms	5468 KB	Output is correct
17	Correct	1 ms	5468 KB	Output is correct
18	Correct	1 ms	5468 KB	Output is correct

Subtask #2
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	5468 KB	Output is correct
2	Correct	1 ms	5468 KB	Output is correct
3	Correct	1 ms	5500 KB	Output is correct
4	Correct	1 ms	5468 KB	Output is correct
5	Correct	1 ms	5468 KB	Output is correct
6	Correct	1 ms	5468 KB	Output is correct
7	Correct	1 ms	5468 KB	Output is correct
8	Correct	1 ms	5468 KB	Output is correct
9	Correct	1 ms	5468 KB	Output is correct
10	Correct	1 ms	5468 KB	Output is correct
11	Correct	1 ms	5468 KB	Output is correct
12	Correct	1 ms	5468 KB	Output is correct
13	Correct	1 ms	5468 KB	Output is correct
14	Correct	1 ms	5468 KB	Output is correct
15	Correct	1 ms	5464 KB	Output is correct
16	Correct	1 ms	5468 KB	Output is correct
17	Correct	1 ms	5468 KB	Output is correct
18	Correct	1 ms	5468 KB	Output is correct
19	Correct	1 ms	5468 KB	Output is correct
20	Correct	1 ms	5336 KB	Output is correct

Subtask #3
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	5464 KB	Output is correct
2	Correct	1 ms	5468 KB	Output is correct
3	Correct	1 ms	5468 KB	Output is correct
4	Correct	1 ms	5468 KB	Output is correct
5	Correct	1 ms	5468 KB	Output is correct
6	Correct	1 ms	5468 KB	Output is correct
7	Correct	1 ms	5468 KB	Output is correct
8	Correct	1 ms	5468 KB	Output is correct
9	Correct	1 ms	5468 KB	Output is correct
10	Correct	1 ms	5468 KB	Output is correct
11	Correct	1 ms	5464 KB	Output is correct
12	Correct	1 ms	5468 KB	Output is correct
13	Correct	1 ms	5468 KB	Output is correct
14	Correct	1 ms	5468 KB	Output is correct
15	Correct	1 ms	5468 KB	Output is correct
16	Correct	1 ms	5468 KB	Output is correct
17	Correct	1 ms	5468 KB	Output is correct
18	Correct	1 ms	5468 KB	Output is correct
19	Correct	1 ms	5468 KB	Output is correct
20	Correct	1 ms	5468 KB	Output is correct
21	Correct	1 ms	5500 KB	Output is correct
22	Correct	1 ms	5468 KB	Output is correct
23	Correct	1 ms	5468 KB	Output is correct
24	Correct	1 ms	5468 KB	Output is correct
25	Correct	1 ms	5468 KB	Output is correct
26	Correct	1 ms	5468 KB	Output is correct
27	Correct	1 ms	5468 KB	Output is correct
28	Correct	1 ms	5468 KB	Output is correct
29	Correct	1 ms	5468 KB	Output is correct
30	Correct	1 ms	5468 KB	Output is correct
31	Correct	1 ms	5468 KB	Output is correct
32	Correct	1 ms	5468 KB	Output is correct
33	Correct	1 ms	5464 KB	Output is correct
34	Correct	1 ms	5468 KB	Output is correct
35	Correct	1 ms	5468 KB	Output is correct
36	Correct	1 ms	5468 KB	Output is correct
37	Correct	1 ms	5468 KB	Output is correct
38	Correct	1 ms	5336 KB	Output is correct
39	Correct	2 ms	5468 KB	Output is correct
40	Correct	1 ms	5468 KB	Output is correct
41	Correct	1 ms	5468 KB	Output is correct
42	Correct	1 ms	5468 KB	Output is correct
43	Correct	1 ms	5720 KB	Output is correct
44	Correct	1 ms	5464 KB	Output is correct
45	Correct	1 ms	5468 KB	Output is correct
46	Correct	1 ms	5468 KB	Output is correct
47	Correct	1 ms	5468 KB	Output is correct
48	Correct	1 ms	5468 KB	Output is correct
49	Correct	1 ms	5468 KB	Output is correct
50	Correct	1 ms	5468 KB	Output is correct
51	Correct	1 ms	5468 KB	Output is correct
52	Correct	1 ms	5464 KB	Output is correct
53	Correct	1 ms	5468 KB	Output is correct
54	Correct	2 ms	5464 KB	Output is correct
55	Correct	1 ms	5468 KB	Output is correct
56	Correct	2 ms	5720 KB	Output is correct
57	Correct	1 ms	5468 KB	Output is correct

Subtask #4
47.0 / 47.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	5464 KB	Output is correct
2	Correct	1 ms	5468 KB	Output is correct
3	Correct	1 ms	5468 KB	Output is correct
4	Correct	1 ms	5468 KB	Output is correct
5	Correct	1 ms	5468 KB	Output is correct
6	Correct	1 ms	5468 KB	Output is correct
7	Correct	1 ms	5468 KB	Output is correct
8	Correct	1 ms	5468 KB	Output is correct
9	Correct	1 ms	5468 KB	Output is correct
10	Correct	1 ms	5468 KB	Output is correct
11	Correct	1 ms	5464 KB	Output is correct
12	Correct	1 ms	5468 KB	Output is correct
13	Correct	1 ms	5468 KB	Output is correct
14	Correct	1 ms	5468 KB	Output is correct
15	Correct	1 ms	5468 KB	Output is correct
16	Correct	1 ms	5468 KB	Output is correct
17	Correct	1 ms	5468 KB	Output is correct
18	Correct	1 ms	5468 KB	Output is correct
19	Correct	1 ms	5468 KB	Output is correct
20	Correct	1 ms	5468 KB	Output is correct
21	Correct	1 ms	5500 KB	Output is correct
22	Correct	1 ms	5468 KB	Output is correct
23	Correct	1 ms	5468 KB	Output is correct
24	Correct	1 ms	5468 KB	Output is correct
25	Correct	1 ms	5468 KB	Output is correct
26	Correct	1 ms	5468 KB	Output is correct
27	Correct	1 ms	5468 KB	Output is correct
28	Correct	1 ms	5468 KB	Output is correct
29	Correct	1 ms	5468 KB	Output is correct
30	Correct	1 ms	5468 KB	Output is correct
31	Correct	1 ms	5468 KB	Output is correct
32	Correct	1 ms	5468 KB	Output is correct
33	Correct	1 ms	5464 KB	Output is correct
34	Correct	1 ms	5468 KB	Output is correct
35	Correct	1 ms	5468 KB	Output is correct
36	Correct	1 ms	5468 KB	Output is correct
37	Correct	1 ms	5468 KB	Output is correct
38	Correct	1 ms	5336 KB	Output is correct
39	Correct	2 ms	5468 KB	Output is correct
40	Correct	1 ms	5468 KB	Output is correct
41	Correct	1 ms	5468 KB	Output is correct
42	Correct	1 ms	5468 KB	Output is correct
43	Correct	1 ms	5720 KB	Output is correct
44	Correct	1 ms	5464 KB	Output is correct
45	Correct	1 ms	5468 KB	Output is correct
46	Correct	1 ms	5468 KB	Output is correct
47	Correct	1 ms	5468 KB	Output is correct
48	Correct	1 ms	5468 KB	Output is correct
49	Correct	1 ms	5468 KB	Output is correct
50	Correct	1 ms	5468 KB	Output is correct
51	Correct	1 ms	5468 KB	Output is correct
52	Correct	1 ms	5464 KB	Output is correct
53	Correct	1 ms	5468 KB	Output is correct
54	Correct	2 ms	5464 KB	Output is correct
55	Correct	1 ms	5468 KB	Output is correct
56	Correct	2 ms	5720 KB	Output is correct
57	Correct	1 ms	5468 KB	Output is correct
58	Correct	12 ms	5468 KB	Output is correct
59	Correct	6 ms	11612 KB	Output is correct
60	Correct	19 ms	11608 KB	Output is correct
61	Correct	151 ms	11612 KB	Output is correct
62	Correct	825 ms	18048 KB	Output is correct
63	Correct	33 ms	18048 KB	Output is correct
64	Correct	397 ms	18260 KB	Output is correct
65	Correct	1 ms	5468 KB	Output is correct
66	Correct	1 ms	5468 KB	Output is correct
67	Correct	1 ms	5468 KB	Output is correct
68	Correct	1 ms	5468 KB	Output is correct
69	Correct	1 ms	5468 KB	Output is correct
70	Correct	1 ms	5468 KB	Output is correct
71	Correct	43 ms	5468 KB	Output is correct
72	Correct	3 ms	5720 KB	Output is correct
73	Correct	12 ms	5464 KB	Output is correct
74	Correct	7 ms	11612 KB	Output is correct
75	Correct	19 ms	11432 KB	Output is correct
76	Correct	162 ms	11608 KB	Output is correct
77	Correct	791 ms	18008 KB	Output is correct
78	Correct	32 ms	18012 KB	Output is correct
79	Correct	388 ms	18044 KB	Output is correct
80	Correct	16 ms	18008 KB	Output is correct
81	Correct	92 ms	18048 KB	Output is correct
82	Correct	848 ms	18048 KB	Output is correct
83	Correct	1 ms	5464 KB	Output is correct
84	Correct	1 ms	5468 KB	Output is correct
85	Correct	40 ms	5724 KB	Output is correct
86	Correct	3 ms	5464 KB	Output is correct
87	Correct	11 ms	5464 KB	Output is correct
88	Correct	7 ms	11868 KB	Output is correct
89	Correct	18 ms	11952 KB	Output is correct
90	Correct	152 ms	11904 KB	Output is correct
91	Correct	793 ms	18856 KB	Output is correct
92	Correct	32 ms	19488 KB	Output is correct
93	Correct	437 ms	19724 KB	Output is correct
94	Correct	3 ms	5468 KB	Output is correct
95	Correct	41 ms	5468 KB	Output is correct
96	Correct	2 ms	5464 KB	Output is correct
97	Correct	1 ms	5468 KB	Output is correct
98	Correct	1 ms	5468 KB	Output is correct
99	Correct	1 ms	5468 KB	Output is correct

답안 #978798

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 18.0 / 18.0

Subtask #3 21.0 / 21.0

Subtask #4 47.0 / 47.0

Subtask #1
14.0 / 14.0

Subtask #2
18.0 / 18.0

Subtask #3
21.0 / 21.0

Subtask #4
47.0 / 47.0