oj.uz

Submission #1105096

# Submission time Handle Problem Language Result Execution time Memory
1105096 2024-10-25T10:50:36 Z manhlinh1501 K blocks (IZhO14_blocks) C++17
100 / 100
 366 ms 50464 KB 
#include<bits/stdc++.h>
using namespace std;
using i64 = long long;
const int MAXN = 1e5 + 5;
const int MAXK = 105;
const int LOGN = 19;
const int oo32 = 1e9 + 5;
#define left ___left
int N, K;
int a[MAXN];
int RMQ[MAXN][LOGN];
int dp[MAXN][MAXK];
int left[MAXN];

int get_min(int l, int r) {
    int k = __lg(r - l + 1);
    return min(RMQ[l][k], RMQ[r - (1 << k) + 1][k]);
}

namespace solver {
    void solution() {
        dp[0][0] = 0;
        stack<int> S;
        int maxx = 0;
        for(int i = 1; i <= N; i++)
            dp[i][1] = (maxx = max(maxx, a[i]));

        for(int j = 2; j <= K; j++) {

            for(int i = 1; i <= N; i++)
                RMQ[i][0] = dp[i][j - 1];

            for(int j = 1; j < LOGN; j++) {
                for(int i = 1; i + (1 << j) - 1 <= N; i++)
                    RMQ[i][j] = min(RMQ[i][j - 1], RMQ[i + (1 << (j - 1))][j - 1]);
            }

            for(int i = 1; i <= N; i++) {
                if(left[i] < i)
                    dp[i][j] = min(dp[i][j], get_min(left[i], i - 1) + a[i]);

                dp[i][j] = min(dp[i][j], min(dp[left[i] - 1][j], dp[left[i] - 1][j - 1] + a[i]));
            }
        }

//        for(int i = 1; i <= N; i++) {
//            for(int j = 1; j <= K; j++)
//                cerr << i << " " << j << " " << dp[i][j] << "\n";
//        }
        cout << dp[N][K];
    }
}

signed main() {
#define task "code"
    if(fopen(task".inp", "r")) {
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> N >> K;
    for(int i = 1; i <= N; i++) cin >> a[i];
    for(int i = 1; i <= N; i++) {
        left[i] = i - 1;
        while(left[i] > 0 and a[left[i]] <= a[i])
            left[i] = left[left[i]];
    }
    for(int i = 1; i <= N; i++) left[i]++;
    memset(dp, 0x3f, sizeof dp);
    solver::solution();
    return (0 ^ 0);
}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:57:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   57 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
blocks.cpp:58:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   58 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 43344 KB Output is correct
2 Correct 7 ms 43344 KB Output is correct
3 Correct 6 ms 43512 KB Output is correct
4 Correct 6 ms 43344 KB Output is correct
5 Correct 5 ms 43344 KB Output is correct
6 Correct 7 ms 43344 KB Output is correct
7 Correct 6 ms 43344 KB Output is correct
8 Correct 6 ms 43344 KB Output is correct
9 Correct 7 ms 43344 KB Output is correct
10 Correct 6 ms 43488 KB Output is correct
11 Correct 7 ms 43508 KB Output is correct
12 Correct 6 ms 43344 KB Output is correct
13 Correct 6 ms 43344 KB Output is correct
14 Correct 6 ms 43344 KB Output is correct
15 Correct 7 ms 43344 KB Output is correct
16 Correct 6 ms 43344 KB Output is correct
17 Correct 7 ms 43344 KB Output is correct
18 Correct 7 ms 43344 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 43516 KB Output is correct
2 Correct 5 ms 43344 KB Output is correct
3 Correct 5 ms 43344 KB Output is correct
4 Correct 6 ms 43344 KB Output is correct
5 Correct 5 ms 43344 KB Output is correct
6 Correct 6 ms 43344 KB Output is correct
7 Correct 6 ms 43512 KB Output is correct
8 Correct 6 ms 43344 KB Output is correct
9 Correct 6 ms 43344 KB Output is correct
10 Correct 7 ms 43344 KB Output is correct
11 Correct 7 ms 43344 KB Output is correct
12 Correct 6 ms 43344 KB Output is correct
13 Correct 6 ms 43344 KB Output is correct
14 Correct 6 ms 43344 KB Output is correct
15 Correct 8 ms 43344 KB Output is correct
16 Correct 6 ms 43344 KB Output is correct
17 Correct 7 ms 43360 KB Output is correct
18 Correct 6 ms 43344 KB Output is correct
19 Correct 6 ms 43344 KB Output is correct
20 Correct 6 ms 43344 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 43344 KB Output is correct
2 Correct 7 ms 43344 KB Output is correct
3 Correct 6 ms 43512 KB Output is correct
4 Correct 6 ms 43344 KB Output is correct
5 Correct 5 ms 43344 KB Output is correct
6 Correct 7 ms 43344 KB Output is correct
7 Correct 6 ms 43344 KB Output is correct
8 Correct 6 ms 43344 KB Output is correct
9 Correct 7 ms 43344 KB Output is correct
10 Correct 6 ms 43488 KB Output is correct
11 Correct 7 ms 43508 KB Output is correct
12 Correct 6 ms 43344 KB Output is correct
13 Correct 6 ms 43344 KB Output is correct
14 Correct 6 ms 43344 KB Output is correct
15 Correct 7 ms 43344 KB Output is correct
16 Correct 6 ms 43344 KB Output is correct
17 Correct 7 ms 43344 KB Output is correct
18 Correct 7 ms 43344 KB Output is correct
19 Correct 6 ms 43516 KB Output is correct
20 Correct 5 ms 43344 KB Output is correct
21 Correct 5 ms 43344 KB Output is correct
22 Correct 6 ms 43344 KB Output is correct
23 Correct 5 ms 43344 KB Output is correct
24 Correct 6 ms 43344 KB Output is correct
25 Correct 6 ms 43512 KB Output is correct
26 Correct 6 ms 43344 KB Output is correct
27 Correct 6 ms 43344 KB Output is correct
28 Correct 7 ms 43344 KB Output is correct
29 Correct 7 ms 43344 KB Output is correct
30 Correct 6 ms 43344 KB Output is correct
31 Correct 6 ms 43344 KB Output is correct
32 Correct 6 ms 43344 KB Output is correct
33 Correct 8 ms 43344 KB Output is correct
34 Correct 6 ms 43344 KB Output is correct
35 Correct 7 ms 43360 KB Output is correct
36 Correct 6 ms 43344 KB Output is correct
37 Correct 6 ms 43344 KB Output is correct
38 Correct 6 ms 43344 KB Output is correct
39 Correct 6 ms 43344 KB Output is correct
40 Correct 6 ms 43552 KB Output is correct
41 Correct 7 ms 43344 KB Output is correct
42 Correct 6 ms 43552 KB Output is correct
43 Correct 6 ms 43344 KB Output is correct
44 Correct 7 ms 43344 KB Output is correct
45 Correct 6 ms 43344 KB Output is correct
46 Correct 7 ms 43344 KB Output is correct
47 Correct 5 ms 43344 KB Output is correct
48 Correct 6 ms 43344 KB Output is correct
49 Correct 5 ms 43344 KB Output is correct
50 Correct 5 ms 43344 KB Output is correct
51 Correct 5 ms 43512 KB Output is correct
52 Correct 5 ms 43344 KB Output is correct
53 Correct 5 ms 43492 KB Output is correct
54 Correct 5 ms 43344 KB Output is correct
55 Correct 5 ms 43344 KB Output is correct
56 Correct 5 ms 43564 KB Output is correct
57 Correct 5 ms 43344 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 43344 KB Output is correct
2 Correct 7 ms 43344 KB Output is correct
3 Correct 6 ms 43512 KB Output is correct
4 Correct 6 ms 43344 KB Output is correct
5 Correct 5 ms 43344 KB Output is correct
6 Correct 7 ms 43344 KB Output is correct
7 Correct 6 ms 43344 KB Output is correct
8 Correct 6 ms 43344 KB Output is correct
9 Correct 7 ms 43344 KB Output is correct
10 Correct 6 ms 43488 KB Output is correct
11 Correct 7 ms 43508 KB Output is correct
12 Correct 6 ms 43344 KB Output is correct
13 Correct 6 ms 43344 KB Output is correct
14 Correct 6 ms 43344 KB Output is correct
15 Correct 7 ms 43344 KB Output is correct
16 Correct 6 ms 43344 KB Output is correct
17 Correct 7 ms 43344 KB Output is correct
18 Correct 7 ms 43344 KB Output is correct
19 Correct 6 ms 43516 KB Output is correct
20 Correct 5 ms 43344 KB Output is correct
21 Correct 5 ms 43344 KB Output is correct
22 Correct 6 ms 43344 KB Output is correct
23 Correct 5 ms 43344 KB Output is correct
24 Correct 6 ms 43344 KB Output is correct
25 Correct 6 ms 43512 KB Output is correct
26 Correct 6 ms 43344 KB Output is correct
27 Correct 6 ms 43344 KB Output is correct
28 Correct 7 ms 43344 KB Output is correct
29 Correct 7 ms 43344 KB Output is correct
30 Correct 6 ms 43344 KB Output is correct
31 Correct 6 ms 43344 KB Output is correct
32 Correct 6 ms 43344 KB Output is correct
33 Correct 8 ms 43344 KB Output is correct
34 Correct 6 ms 43344 KB Output is correct
35 Correct 7 ms 43360 KB Output is correct
36 Correct 6 ms 43344 KB Output is correct
37 Correct 6 ms 43344 KB Output is correct
38 Correct 6 ms 43344 KB Output is correct
39 Correct 6 ms 43344 KB Output is correct
40 Correct 6 ms 43552 KB Output is correct
41 Correct 7 ms 43344 KB Output is correct
42 Correct 6 ms 43552 KB Output is correct
43 Correct 6 ms 43344 KB Output is correct
44 Correct 7 ms 43344 KB Output is correct
45 Correct 6 ms 43344 KB Output is correct
46 Correct 7 ms 43344 KB Output is correct
47 Correct 5 ms 43344 KB Output is correct
48 Correct 6 ms 43344 KB Output is correct
49 Correct 5 ms 43344 KB Output is correct
50 Correct 5 ms 43344 KB Output is correct
51 Correct 5 ms 43512 KB Output is correct
52 Correct 5 ms 43344 KB Output is correct
53 Correct 5 ms 43492 KB Output is correct
54 Correct 5 ms 43344 KB Output is correct
55 Correct 5 ms 43344 KB Output is correct
56 Correct 5 ms 43564 KB Output is correct
57 Correct 5 ms 43344 KB Output is correct
58 Correct 13 ms 43600 KB Output is correct
59 Correct 9 ms 44112 KB Output is correct
60 Correct 19 ms 46232 KB Output is correct
61 Correct 112 ms 46160 KB Output is correct
62 Correct 297 ms 50256 KB Output is correct
63 Correct 20 ms 50256 KB Output is correct
64 Correct 163 ms 50256 KB Output is correct
65 Correct 5 ms 43344 KB Output is correct
66 Correct 6 ms 43536 KB Output is correct
67 Correct 5 ms 43480 KB Output is correct
68 Correct 6 ms 43516 KB Output is correct
69 Correct 6 ms 43344 KB Output is correct
70 Correct 6 ms 43580 KB Output is correct
71 Correct 29 ms 43764 KB Output is correct
72 Correct 6 ms 43600 KB Output is correct
73 Correct 12 ms 43712 KB Output is correct
74 Correct 10 ms 44112 KB Output is correct
75 Correct 19 ms 46264 KB Output is correct
76 Correct 120 ms 46256 KB Output is correct
77 Correct 366 ms 50256 KB Output is correct
78 Correct 23 ms 50256 KB Output is correct
79 Correct 176 ms 50256 KB Output is correct
80 Correct 16 ms 44624 KB Output is correct
81 Correct 51 ms 50464 KB Output is correct
82 Correct 336 ms 50364 KB Output is correct
83 Correct 6 ms 43344 KB Output is correct
84 Correct 6 ms 43344 KB Output is correct
85 Correct 31 ms 43704 KB Output is correct
86 Correct 7 ms 43600 KB Output is correct
87 Correct 16 ms 43600 KB Output is correct
88 Correct 10 ms 44144 KB Output is correct
89 Correct 21 ms 46160 KB Output is correct
90 Correct 104 ms 46160 KB Output is correct
91 Correct 366 ms 50448 KB Output is correct
92 Correct 22 ms 50256 KB Output is correct
93 Correct 152 ms 50256 KB Output is correct
94 Correct 8 ms 43600 KB Output is correct
95 Correct 30 ms 43584 KB Output is correct
96 Correct 7 ms 43344 KB Output is correct
97 Correct 6 ms 43344 KB Output is correct
98 Correct 7 ms 43344 KB Output is correct
99 Correct 7 ms 43344 KB Output is correct