oj.uz

Submission #873028

# Submission time Handle Problem Language Result Execution time Memory
873028 2023-11-14T10:24:03 Z sleepntsheep K blocks (IZhO14_blocks) C++17
100 / 100
 388 ms 4184 KB 
#include <iostream>
#include <stack>
#include <cstring>
#include <vector>
#include <algorithm>
#include <deque>
#include <set>
#include <utility>
#include <array>

using i64 = long long;
using u64 = unsigned long long;
using f64 = double;
using f80 = long double;

using namespace std;
#define ALL(x) x.begin(), x.end()
#define ShinLena cin.tie(nullptr)->sync_with_stdio(false);
#define N 100000

int n, k, a[N];
i64 dp[2][N], t[N<<1];
#pragma GCC optimize("O3")
#pragma GCC target("avx2")

inline __attribute__((always_inline)) i64 qry(int l, int r)
{
    i64 z = 1e18;
    for (l += n, r += n + 1; l < r; l >>= 1, r>>=1)
    {
        if (l&1) z = min(z, t[l++]);
        if (r&1) z = min(t[--r], z);
    }
    return z;
}

int main()
{
    memset(dp, 63, sizeof dp);
    ShinLena;
    cin >> n >> k;
    for (int i = 0, z = a[0]; i < n; ++i) cin >> a[i], z = max(z, a[i]), dp[0][i] = t[i+n] = z;
    for (int i = n; i--;) t[i] = std::min(t[i<<1], t[i<<1|1]);

    for (int j = 1; j < k; ++j)
    {
        stack<int> q;
        for (int i = 0; i < n; ++i)
        {
            while (q.size() && a[q.top()] <= a[i]) q.pop();
            i64 &d = dp[j&1][i];
            d = 1e18;

            if (q.size()) d = min({d, dp[j&1][q.top()], dp[j&1^1][q.top()] + a[i], qry(q.top() + 1, i-1) + a[i]});
            else dp[j&1][i] = qry(0, i-1) + a[i];

            q.push(i);
        }
        for (int i = 0; i < n; ++i) t[i+n] = dp[j&1][i];
        for (int i = n; i--;) t[i] = std::min(t[i<<1], t[i<<1|1]);
    }

    cout << dp[k&1^1][n-1];

    return 0;
}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:54:61: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
   54 |             if (q.size()) d = min({d, dp[j&1][q.top()], dp[j&1^1][q.top()] + a[i], qry(q.top() + 1, i-1) + a[i]});
      |                                                            ~^~
blocks.cpp:63:17: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
   63 |     cout << dp[k&1^1][n-1];
      |                ~^~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3160 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 1 ms 3404 KB Output is correct
4 Correct 1 ms 3164 KB Output is correct
5 Correct 1 ms 3164 KB Output is correct
6 Correct 1 ms 3164 KB Output is correct
7 Correct 1 ms 3164 KB Output is correct
8 Correct 1 ms 3164 KB Output is correct
9 Correct 1 ms 3164 KB Output is correct
10 Correct 1 ms 3164 KB Output is correct
11 Correct 1 ms 3164 KB Output is correct
12 Correct 1 ms 3164 KB Output is correct
13 Correct 1 ms 3164 KB Output is correct
14 Correct 1 ms 3416 KB Output is correct
15 Correct 1 ms 3164 KB Output is correct
16 Correct 1 ms 3416 KB Output is correct
17 Correct 1 ms 3164 KB Output is correct
18 Correct 1 ms 3164 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3164 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 1 ms 3164 KB Output is correct
4 Correct 1 ms 3164 KB Output is correct
5 Correct 1 ms 3164 KB Output is correct
6 Correct 1 ms 3160 KB Output is correct
7 Correct 1 ms 3164 KB Output is correct
8 Correct 1 ms 3164 KB Output is correct
9 Correct 1 ms 3164 KB Output is correct
10 Correct 1 ms 3164 KB Output is correct
11 Correct 1 ms 3164 KB Output is correct
12 Correct 1 ms 3164 KB Output is correct
13 Correct 1 ms 3164 KB Output is correct
14 Correct 1 ms 3164 KB Output is correct
15 Correct 1 ms 3160 KB Output is correct
16 Correct 1 ms 3164 KB Output is correct
17 Correct 1 ms 3164 KB Output is correct
18 Correct 1 ms 3164 KB Output is correct
19 Correct 1 ms 3164 KB Output is correct
20 Correct 1 ms 3164 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3160 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 1 ms 3404 KB Output is correct
4 Correct 1 ms 3164 KB Output is correct
5 Correct 1 ms 3164 KB Output is correct
6 Correct 1 ms 3164 KB Output is correct
7 Correct 1 ms 3164 KB Output is correct
8 Correct 1 ms 3164 KB Output is correct
9 Correct 1 ms 3164 KB Output is correct
10 Correct 1 ms 3164 KB Output is correct
11 Correct 1 ms 3164 KB Output is correct
12 Correct 1 ms 3164 KB Output is correct
13 Correct 1 ms 3164 KB Output is correct
14 Correct 1 ms 3416 KB Output is correct
15 Correct 1 ms 3164 KB Output is correct
16 Correct 1 ms 3416 KB Output is correct
17 Correct 1 ms 3164 KB Output is correct
18 Correct 1 ms 3164 KB Output is correct
19 Correct 1 ms 3164 KB Output is correct
20 Correct 1 ms 3164 KB Output is correct
21 Correct 1 ms 3164 KB Output is correct
22 Correct 1 ms 3164 KB Output is correct
23 Correct 1 ms 3164 KB Output is correct
24 Correct 1 ms 3160 KB Output is correct
25 Correct 1 ms 3164 KB Output is correct
26 Correct 1 ms 3164 KB Output is correct
27 Correct 1 ms 3164 KB Output is correct
28 Correct 1 ms 3164 KB Output is correct
29 Correct 1 ms 3164 KB Output is correct
30 Correct 1 ms 3164 KB Output is correct
31 Correct 1 ms 3164 KB Output is correct
32 Correct 1 ms 3164 KB Output is correct
33 Correct 1 ms 3160 KB Output is correct
34 Correct 1 ms 3164 KB Output is correct
35 Correct 1 ms 3164 KB Output is correct
36 Correct 1 ms 3164 KB Output is correct
37 Correct 1 ms 3164 KB Output is correct
38 Correct 1 ms 3164 KB Output is correct
39 Correct 1 ms 3164 KB Output is correct
40 Correct 1 ms 3164 KB Output is correct
41 Correct 1 ms 3164 KB Output is correct
42 Correct 1 ms 3164 KB Output is correct
43 Correct 1 ms 3164 KB Output is correct
44 Correct 1 ms 3164 KB Output is correct
45 Correct 1 ms 3164 KB Output is correct
46 Correct 1 ms 3164 KB Output is correct
47 Correct 1 ms 3164 KB Output is correct
48 Correct 1 ms 3164 KB Output is correct
49 Correct 1 ms 3164 KB Output is correct
50 Correct 1 ms 3160 KB Output is correct
51 Correct 1 ms 3416 KB Output is correct
52 Correct 1 ms 3164 KB Output is correct
53 Correct 1 ms 3164 KB Output is correct
54 Correct 1 ms 3164 KB Output is correct
55 Correct 1 ms 3416 KB Output is correct
56 Correct 1 ms 3164 KB Output is correct
57 Correct 1 ms 3164 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3160 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 1 ms 3404 KB Output is correct
4 Correct 1 ms 3164 KB Output is correct
5 Correct 1 ms 3164 KB Output is correct
6 Correct 1 ms 3164 KB Output is correct
7 Correct 1 ms 3164 KB Output is correct
8 Correct 1 ms 3164 KB Output is correct
9 Correct 1 ms 3164 KB Output is correct
10 Correct 1 ms 3164 KB Output is correct
11 Correct 1 ms 3164 KB Output is correct
12 Correct 1 ms 3164 KB Output is correct
13 Correct 1 ms 3164 KB Output is correct
14 Correct 1 ms 3416 KB Output is correct
15 Correct 1 ms 3164 KB Output is correct
16 Correct 1 ms 3416 KB Output is correct
17 Correct 1 ms 3164 KB Output is correct
18 Correct 1 ms 3164 KB Output is correct
19 Correct 1 ms 3164 KB Output is correct
20 Correct 1 ms 3164 KB Output is correct
21 Correct 1 ms 3164 KB Output is correct
22 Correct 1 ms 3164 KB Output is correct
23 Correct 1 ms 3164 KB Output is correct
24 Correct 1 ms 3160 KB Output is correct
25 Correct 1 ms 3164 KB Output is correct
26 Correct 1 ms 3164 KB Output is correct
27 Correct 1 ms 3164 KB Output is correct
28 Correct 1 ms 3164 KB Output is correct
29 Correct 1 ms 3164 KB Output is correct
30 Correct 1 ms 3164 KB Output is correct
31 Correct 1 ms 3164 KB Output is correct
32 Correct 1 ms 3164 KB Output is correct
33 Correct 1 ms 3160 KB Output is correct
34 Correct 1 ms 3164 KB Output is correct
35 Correct 1 ms 3164 KB Output is correct
36 Correct 1 ms 3164 KB Output is correct
37 Correct 1 ms 3164 KB Output is correct
38 Correct 1 ms 3164 KB Output is correct
39 Correct 1 ms 3164 KB Output is correct
40 Correct 1 ms 3164 KB Output is correct
41 Correct 1 ms 3164 KB Output is correct
42 Correct 1 ms 3164 KB Output is correct
43 Correct 1 ms 3164 KB Output is correct
44 Correct 1 ms 3164 KB Output is correct
45 Correct 1 ms 3164 KB Output is correct
46 Correct 1 ms 3164 KB Output is correct
47 Correct 1 ms 3164 KB Output is correct
48 Correct 1 ms 3164 KB Output is correct
49 Correct 1 ms 3164 KB Output is correct
50 Correct 1 ms 3160 KB Output is correct
51 Correct 1 ms 3416 KB Output is correct
52 Correct 1 ms 3164 KB Output is correct
53 Correct 1 ms 3164 KB Output is correct
54 Correct 1 ms 3164 KB Output is correct
55 Correct 1 ms 3416 KB Output is correct
56 Correct 1 ms 3164 KB Output is correct
57 Correct 1 ms 3164 KB Output is correct
58 Correct 10 ms 3608 KB Output is correct
59 Correct 4 ms 3676 KB Output is correct
60 Correct 14 ms 3676 KB Output is correct
61 Correct 128 ms 3676 KB Output is correct
62 Correct 388 ms 3972 KB Output is correct
63 Correct 15 ms 3932 KB Output is correct
64 Correct 175 ms 3932 KB Output is correct
65 Correct 1 ms 3164 KB Output is correct
66 Correct 1 ms 3164 KB Output is correct
67 Correct 1 ms 3164 KB Output is correct
68 Correct 1 ms 3160 KB Output is correct
69 Correct 1 ms 3420 KB Output is correct
70 Correct 1 ms 3420 KB Output is correct
71 Correct 23 ms 3448 KB Output is correct
72 Correct 2 ms 3420 KB Output is correct
73 Correct 7 ms 3420 KB Output is correct
74 Correct 4 ms 3676 KB Output is correct
75 Correct 10 ms 3676 KB Output is correct
76 Correct 84 ms 3744 KB Output is correct
77 Correct 239 ms 3956 KB Output is correct
78 Correct 12 ms 3928 KB Output is correct
79 Correct 110 ms 3956 KB Output is correct
80 Correct 7 ms 3928 KB Output is correct
81 Correct 27 ms 3932 KB Output is correct
82 Correct 248 ms 3956 KB Output is correct
83 Correct 1 ms 3420 KB Output is correct
84 Correct 2 ms 3420 KB Output is correct
85 Correct 16 ms 3420 KB Output is correct
86 Correct 2 ms 3420 KB Output is correct
87 Correct 5 ms 3420 KB Output is correct
88 Correct 4 ms 3676 KB Output is correct
89 Correct 11 ms 3676 KB Output is correct
90 Correct 54 ms 3676 KB Output is correct
91 Correct 176 ms 4184 KB Output is correct
92 Correct 13 ms 3932 KB Output is correct
93 Correct 75 ms 4100 KB Output is correct
94 Correct 2 ms 3420 KB Output is correct
95 Correct 36 ms 3580 KB Output is correct
96 Correct 2 ms 3420 KB Output is correct
97 Correct 1 ms 3420 KB Output is correct
98 Correct 1 ms 3164 KB Output is correct
99 Correct 1 ms 3164 KB Output is correct