oj.uz

Submission #873030

# Submission time Handle Problem Language Result Execution time Memory
873030 2023-11-14T10:24:44 Z sleepntsheep K blocks (IZhO14_blocks) C++17
100 / 100
 390 ms 4104 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,unroll-loops")
#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 3160 KB Output is correct
4 Correct 1 ms 3160 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 3160 KB Output is correct
12 Correct 1 ms 3160 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 3160 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 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 3160 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 3160 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 3232 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 3160 KB Output is correct
4 Correct 1 ms 3160 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 3160 KB Output is correct
12 Correct 1 ms 3160 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 3160 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 3164 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 3160 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 3160 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 3232 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 3160 KB Output is correct
44 Correct 1 ms 3160 KB Output is correct
45 Correct 1 ms 3160 KB Output is correct
46 Correct 1 ms 3164 KB Output is correct
47 Correct 1 ms 3348 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 3160 KB Output is correct
52 Correct 1 ms 3160 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 3164 KB Output is correct
56 Correct 1 ms 3164 KB Output is correct
57 Correct 1 ms 3348 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 3160 KB Output is correct
4 Correct 1 ms 3160 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 3160 KB Output is correct
12 Correct 1 ms 3160 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 3160 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 3164 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 3160 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 3160 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 3232 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 3160 KB Output is correct
44 Correct 1 ms 3160 KB Output is correct
45 Correct 1 ms 3160 KB Output is correct
46 Correct 1 ms 3164 KB Output is correct
47 Correct 1 ms 3348 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 3160 KB Output is correct
52 Correct 1 ms 3160 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 3164 KB Output is correct
56 Correct 1 ms 3164 KB Output is correct
57 Correct 1 ms 3348 KB Output is correct
58 Correct 10 ms 3416 KB Output is correct
59 Correct 4 ms 3676 KB Output is correct
60 Correct 14 ms 3676 KB Output is correct
61 Correct 129 ms 3740 KB Output is correct
62 Correct 390 ms 3956 KB Output is correct
63 Correct 14 ms 3804 KB Output is correct
64 Correct 172 ms 3960 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 3164 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 3420 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 3768 KB Output is correct
75 Correct 10 ms 3676 KB Output is correct
76 Correct 79 ms 3748 KB Output is correct
77 Correct 238 ms 3932 KB Output is correct
78 Correct 11 ms 3928 KB Output is correct
79 Correct 104 ms 3956 KB Output is correct
80 Correct 7 ms 3932 KB Output is correct
81 Correct 28 ms 3984 KB Output is correct
82 Correct 223 ms 3932 KB Output is correct
83 Correct 1 ms 3416 KB Output is correct
84 Correct 1 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 3780 KB Output is correct
89 Correct 8 ms 3676 KB Output is correct
90 Correct 53 ms 3812 KB Output is correct
91 Correct 157 ms 4096 KB Output is correct
92 Correct 12 ms 3932 KB Output is correct
93 Correct 77 ms 4104 KB Output is correct
94 Correct 2 ms 3420 KB Output is correct
95 Correct 35 ms 3580 KB Output is correct
96 Correct 1 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