oj.uz

Submission #1101470

# Submission time Handle Problem Language Result Execution time Memory
1101470 2024-10-16T08:48:02 Z Anphat K blocks (IZhO14_blocks) C++14
100 / 100
 339 ms 49916 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define f first
#define s second
#define sz(a) (int)(a.size())
#define all(a) a.begin(), a.end()
#define uni(a) sort(all(a)), a.resize(unique(all(a)) - a.begin())

typedef pair <int, int> ii;

const int N = 1e5 + 5;

int n, k, a[N], ans, l[N], r[N], dp[101][N];
stack <int> st;

int mn[N][20];
int *save;

void build() {
    for (int i = 0; i <= n; i++) mn[i][0] = save[i];
    for (int j = 1; (1 << j) <= n; j++) {
        for (int i = 0; i + (1 << j) - 1 <= n; i++) {
            mn[i][j] = min(mn[i][j - 1], mn[i + (1 << j - 1)][j - 1]);
        }
    }
}

int get(int l, int r) {
    if (l > r) return 1e9;
    int lg = __lg(r - l + 1);
    return min(mn[l][lg], mn[r - (1 << lg) + 1][lg]);
}

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

    //freopen("a.inp", "r", stdin);
    //freopen("a.out", "w", stdout);

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

    a[0] = a[n + 1] = 1e9;
    st.push(0);

    for (int i = 1; i <= n; i++) {
        while (a[st.top()] <= a[i]) st.pop();
        l[i] = st.top();
        st.push(i);
    }

    while (sz(st)) st.pop();
    st.push(n + 1);

    for (int i = n; i >= 1; i--) {
        while (a[st.top()] <= a[i]) st.pop();
        r[i] = st.top();
        st.push(i);
    }

    memset(dp, 0x3f, sizeof(dp));
    dp[0][0] = 0; save = dp[0];

    for (int j = 1; j <= k; j++) {
        build();
        for (int i = 1; i <= n; i++) {
            dp[j][i] = get(l[i], i - 1) + a[i];
            dp[j][i] = min(dp[j][i], dp[j][l[i]]);
        }
        save = dp[j];
    }

    cout << dp[k][n] << '\n';

    return 0;
}

Compilation message

blocks.cpp: In function 'void build()':
blocks.cpp:25:57: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   25 |             mn[i][j] = min(mn[i][j - 1], mn[i + (1 << j - 1)][j - 1]);
      |                                                       ~~^~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 41296 KB Output is correct
2 Correct 6 ms 41296 KB Output is correct
3 Correct 5 ms 41296 KB Output is correct
4 Correct 6 ms 41296 KB Output is correct
5 Correct 7 ms 41396 KB Output is correct
6 Correct 7 ms 41296 KB Output is correct
7 Correct 7 ms 41296 KB Output is correct
8 Correct 5 ms 41296 KB Output is correct
9 Correct 6 ms 41296 KB Output is correct
10 Correct 6 ms 41492 KB Output is correct
11 Correct 6 ms 41460 KB Output is correct
12 Correct 5 ms 41468 KB Output is correct
13 Correct 7 ms 41296 KB Output is correct
14 Correct 6 ms 41296 KB Output is correct
15 Correct 5 ms 41512 KB Output is correct
16 Correct 5 ms 41296 KB Output is correct
17 Correct 6 ms 41296 KB Output is correct
18 Correct 7 ms 41296 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 41476 KB Output is correct
2 Correct 6 ms 41296 KB Output is correct
3 Correct 6 ms 41456 KB Output is correct
4 Correct 7 ms 41296 KB Output is correct
5 Correct 6 ms 41296 KB Output is correct
6 Correct 5 ms 41296 KB Output is correct
7 Correct 6 ms 41308 KB Output is correct
8 Correct 6 ms 41296 KB Output is correct
9 Correct 6 ms 41296 KB Output is correct
10 Correct 5 ms 41296 KB Output is correct
11 Correct 6 ms 41296 KB Output is correct
12 Correct 6 ms 41464 KB Output is correct
13 Correct 5 ms 41296 KB Output is correct
14 Correct 7 ms 41296 KB Output is correct
15 Correct 6 ms 41296 KB Output is correct
16 Correct 7 ms 41296 KB Output is correct
17 Correct 6 ms 41464 KB Output is correct
18 Correct 6 ms 41296 KB Output is correct
19 Correct 6 ms 41464 KB Output is correct
20 Correct 5 ms 41296 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 41296 KB Output is correct
2 Correct 6 ms 41296 KB Output is correct
3 Correct 5 ms 41296 KB Output is correct
4 Correct 6 ms 41296 KB Output is correct
5 Correct 7 ms 41396 KB Output is correct
6 Correct 7 ms 41296 KB Output is correct
7 Correct 7 ms 41296 KB Output is correct
8 Correct 5 ms 41296 KB Output is correct
9 Correct 6 ms 41296 KB Output is correct
10 Correct 6 ms 41492 KB Output is correct
11 Correct 6 ms 41460 KB Output is correct
12 Correct 5 ms 41468 KB Output is correct
13 Correct 7 ms 41296 KB Output is correct
14 Correct 6 ms 41296 KB Output is correct
15 Correct 5 ms 41512 KB Output is correct
16 Correct 5 ms 41296 KB Output is correct
17 Correct 6 ms 41296 KB Output is correct
18 Correct 7 ms 41296 KB Output is correct
19 Correct 7 ms 41476 KB Output is correct
20 Correct 6 ms 41296 KB Output is correct
21 Correct 6 ms 41456 KB Output is correct
22 Correct 7 ms 41296 KB Output is correct
23 Correct 6 ms 41296 KB Output is correct
24 Correct 5 ms 41296 KB Output is correct
25 Correct 6 ms 41308 KB Output is correct
26 Correct 6 ms 41296 KB Output is correct
27 Correct 6 ms 41296 KB Output is correct
28 Correct 5 ms 41296 KB Output is correct
29 Correct 6 ms 41296 KB Output is correct
30 Correct 6 ms 41464 KB Output is correct
31 Correct 5 ms 41296 KB Output is correct
32 Correct 7 ms 41296 KB Output is correct
33 Correct 6 ms 41296 KB Output is correct
34 Correct 7 ms 41296 KB Output is correct
35 Correct 6 ms 41464 KB Output is correct
36 Correct 6 ms 41296 KB Output is correct
37 Correct 6 ms 41464 KB Output is correct
38 Correct 5 ms 41296 KB Output is correct
39 Correct 5 ms 41296 KB Output is correct
40 Correct 6 ms 41296 KB Output is correct
41 Correct 6 ms 41464 KB Output is correct
42 Correct 6 ms 41296 KB Output is correct
43 Correct 6 ms 41296 KB Output is correct
44 Correct 6 ms 41296 KB Output is correct
45 Correct 6 ms 41296 KB Output is correct
46 Correct 5 ms 41296 KB Output is correct
47 Correct 6 ms 41296 KB Output is correct
48 Correct 6 ms 41296 KB Output is correct
49 Correct 6 ms 41296 KB Output is correct
50 Correct 5 ms 41444 KB Output is correct
51 Correct 5 ms 41296 KB Output is correct
52 Correct 5 ms 41484 KB Output is correct
53 Correct 7 ms 41552 KB Output is correct
54 Correct 6 ms 41296 KB Output is correct
55 Correct 6 ms 41296 KB Output is correct
56 Correct 6 ms 41296 KB Output is correct
57 Correct 6 ms 41296 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 41296 KB Output is correct
2 Correct 6 ms 41296 KB Output is correct
3 Correct 5 ms 41296 KB Output is correct
4 Correct 6 ms 41296 KB Output is correct
5 Correct 7 ms 41396 KB Output is correct
6 Correct 7 ms 41296 KB Output is correct
7 Correct 7 ms 41296 KB Output is correct
8 Correct 5 ms 41296 KB Output is correct
9 Correct 6 ms 41296 KB Output is correct
10 Correct 6 ms 41492 KB Output is correct
11 Correct 6 ms 41460 KB Output is correct
12 Correct 5 ms 41468 KB Output is correct
13 Correct 7 ms 41296 KB Output is correct
14 Correct 6 ms 41296 KB Output is correct
15 Correct 5 ms 41512 KB Output is correct
16 Correct 5 ms 41296 KB Output is correct
17 Correct 6 ms 41296 KB Output is correct
18 Correct 7 ms 41296 KB Output is correct
19 Correct 7 ms 41476 KB Output is correct
20 Correct 6 ms 41296 KB Output is correct
21 Correct 6 ms 41456 KB Output is correct
22 Correct 7 ms 41296 KB Output is correct
23 Correct 6 ms 41296 KB Output is correct
24 Correct 5 ms 41296 KB Output is correct
25 Correct 6 ms 41308 KB Output is correct
26 Correct 6 ms 41296 KB Output is correct
27 Correct 6 ms 41296 KB Output is correct
28 Correct 5 ms 41296 KB Output is correct
29 Correct 6 ms 41296 KB Output is correct
30 Correct 6 ms 41464 KB Output is correct
31 Correct 5 ms 41296 KB Output is correct
32 Correct 7 ms 41296 KB Output is correct
33 Correct 6 ms 41296 KB Output is correct
34 Correct 7 ms 41296 KB Output is correct
35 Correct 6 ms 41464 KB Output is correct
36 Correct 6 ms 41296 KB Output is correct
37 Correct 6 ms 41464 KB Output is correct
38 Correct 5 ms 41296 KB Output is correct
39 Correct 5 ms 41296 KB Output is correct
40 Correct 6 ms 41296 KB Output is correct
41 Correct 6 ms 41464 KB Output is correct
42 Correct 6 ms 41296 KB Output is correct
43 Correct 6 ms 41296 KB Output is correct
44 Correct 6 ms 41296 KB Output is correct
45 Correct 6 ms 41296 KB Output is correct
46 Correct 5 ms 41296 KB Output is correct
47 Correct 6 ms 41296 KB Output is correct
48 Correct 6 ms 41296 KB Output is correct
49 Correct 6 ms 41296 KB Output is correct
50 Correct 5 ms 41444 KB Output is correct
51 Correct 5 ms 41296 KB Output is correct
52 Correct 5 ms 41484 KB Output is correct
53 Correct 7 ms 41552 KB Output is correct
54 Correct 6 ms 41296 KB Output is correct
55 Correct 6 ms 41296 KB Output is correct
56 Correct 6 ms 41296 KB Output is correct
57 Correct 6 ms 41296 KB Output is correct
58 Correct 13 ms 43856 KB Output is correct
59 Correct 11 ms 46160 KB Output is correct
60 Correct 22 ms 46160 KB Output is correct
61 Correct 87 ms 46120 KB Output is correct
62 Correct 333 ms 48976 KB Output is correct
63 Correct 24 ms 49748 KB Output is correct
64 Correct 182 ms 49740 KB Output is correct
65 Correct 6 ms 41300 KB Output is correct
66 Correct 5 ms 41300 KB Output is correct
67 Correct 6 ms 41300 KB Output is correct
68 Correct 6 ms 41300 KB Output is correct
69 Correct 6 ms 41720 KB Output is correct
70 Correct 6 ms 41556 KB Output is correct
71 Correct 27 ms 43860 KB Output is correct
72 Correct 7 ms 43860 KB Output is correct
73 Correct 13 ms 43860 KB Output is correct
74 Correct 12 ms 46420 KB Output is correct
75 Correct 19 ms 46364 KB Output is correct
76 Correct 103 ms 46612 KB Output is correct
77 Correct 339 ms 49664 KB Output is correct
78 Correct 30 ms 49492 KB Output is correct
79 Correct 126 ms 49492 KB Output is correct
80 Correct 20 ms 49504 KB Output is correct
81 Correct 46 ms 49492 KB Output is correct
82 Correct 280 ms 49500 KB Output is correct
83 Correct 6 ms 41556 KB Output is correct
84 Correct 7 ms 41556 KB Output is correct
85 Correct 27 ms 43860 KB Output is correct
86 Correct 7 ms 43860 KB Output is correct
87 Correct 13 ms 43860 KB Output is correct
88 Correct 11 ms 46420 KB Output is correct
89 Correct 20 ms 46420 KB Output is correct
90 Correct 120 ms 46420 KB Output is correct
91 Correct 266 ms 49916 KB Output is correct
92 Correct 24 ms 49748 KB Output is correct
93 Correct 148 ms 49748 KB Output is correct
94 Correct 8 ms 43860 KB Output is correct
95 Correct 32 ms 43860 KB Output is correct
96 Correct 7 ms 41556 KB Output is correct
97 Correct 6 ms 41556 KB Output is correct
98 Correct 6 ms 41300 KB Output is correct
99 Correct 6 ms 41308 KB Output is correct