oj.uz

Submission #638342

# Submission time Handle Problem Language Result Execution time Memory
638342 2022-09-05T14:01:15 Z nguyentunglam K blocks (IZhO14_blocks) C++14
100 / 100
 196 ms 44832 KB 
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define forin(i, a, b) for(int i = a; i <= b; i++)
#define forde(i, a, b) for(int i = a; i >= b; i--)
#define forv(a, b) for(auto & a : b)
#define fi first
#define se second
#define ii pair<int, int>
#define endl "\n"
using namespace std;
const int N = 1e5 + 10;
int a[N], f[N][110];
int main() {
    #define task ""
    cin.tie(0) -> sync_with_stdio(0);
    if (fopen ("task.inp", "r")) {
        freopen ("task.inp", "r", stdin);
        freopen ("task.out", "w", stdout);
    }
    if (fopen (task".inp", "r")) {
        freopen (task".inp", "r", stdin);
        freopen (task".out", "w", stdout);
    }
    int n, k; cin >> n >> k;
    for(int i = 1; i <= n; i++) cin >> a[i];
    memset(f, 127, sizeof(f));
    f[0][0] = 0;
    for(int j = 1; j <= k; j++) {
        stack<pair<int, int>> s;
        for(int i = 1; i <= n; i++) {
            int g = f[i - 1][j - 1];
            while (!s.empty() && a[s.top().fi] <= a[i]) {
                g = min(g, s.top().se);
                s.pop();
            }
            f[i][j] = g + a[i];
            if (!s.empty()) f[i][j] = min(f[i][j], f[s.top().fi][j]);
            s.push({i, g});
        }
    }
    cout << f[n][k];
}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:17:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |         freopen ("task.inp", "r", stdin);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
blocks.cpp:18:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |         freopen ("task.out", "w", stdout);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
blocks.cpp:21:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |         freopen (task".inp", "r", stdin);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
blocks.cpp:22:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |         freopen (task".out", "w", stdout);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 43348 KB Output is correct
2 Correct 17 ms 43324 KB Output is correct
3 Correct 18 ms 43340 KB Output is correct
4 Correct 18 ms 43348 KB Output is correct
5 Correct 20 ms 43316 KB Output is correct
6 Correct 17 ms 43348 KB Output is correct
7 Correct 17 ms 43308 KB Output is correct
8 Correct 17 ms 43340 KB Output is correct
9 Correct 19 ms 43348 KB Output is correct
10 Correct 20 ms 43260 KB Output is correct
11 Correct 20 ms 43344 KB Output is correct
12 Correct 19 ms 43340 KB Output is correct
13 Correct 17 ms 43276 KB Output is correct
14 Correct 17 ms 43300 KB Output is correct
15 Correct 17 ms 43348 KB Output is correct
16 Correct 18 ms 43268 KB Output is correct
17 Correct 17 ms 43348 KB Output is correct
18 Correct 19 ms 43348 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 43348 KB Output is correct
2 Correct 17 ms 43348 KB Output is correct
3 Correct 17 ms 43312 KB Output is correct
4 Correct 19 ms 43356 KB Output is correct
5 Correct 18 ms 43388 KB Output is correct
6 Correct 17 ms 43348 KB Output is correct
7 Correct 20 ms 43372 KB Output is correct
8 Correct 18 ms 43336 KB Output is correct
9 Correct 18 ms 43384 KB Output is correct
10 Correct 18 ms 43356 KB Output is correct
11 Correct 18 ms 43348 KB Output is correct
12 Correct 18 ms 43348 KB Output is correct
13 Correct 20 ms 43348 KB Output is correct
14 Correct 19 ms 43300 KB Output is correct
15 Correct 18 ms 43300 KB Output is correct
16 Correct 18 ms 43284 KB Output is correct
17 Correct 22 ms 43348 KB Output is correct
18 Correct 22 ms 43368 KB Output is correct
19 Correct 18 ms 43340 KB Output is correct
20 Correct 18 ms 43336 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 43348 KB Output is correct
2 Correct 17 ms 43324 KB Output is correct
3 Correct 18 ms 43340 KB Output is correct
4 Correct 18 ms 43348 KB Output is correct
5 Correct 20 ms 43316 KB Output is correct
6 Correct 17 ms 43348 KB Output is correct
7 Correct 17 ms 43308 KB Output is correct
8 Correct 17 ms 43340 KB Output is correct
9 Correct 19 ms 43348 KB Output is correct
10 Correct 20 ms 43260 KB Output is correct
11 Correct 20 ms 43344 KB Output is correct
12 Correct 19 ms 43340 KB Output is correct
13 Correct 17 ms 43276 KB Output is correct
14 Correct 17 ms 43300 KB Output is correct
15 Correct 17 ms 43348 KB Output is correct
16 Correct 18 ms 43268 KB Output is correct
17 Correct 17 ms 43348 KB Output is correct
18 Correct 19 ms 43348 KB Output is correct
19 Correct 23 ms 43348 KB Output is correct
20 Correct 17 ms 43348 KB Output is correct
21 Correct 17 ms 43312 KB Output is correct
22 Correct 19 ms 43356 KB Output is correct
23 Correct 18 ms 43388 KB Output is correct
24 Correct 17 ms 43348 KB Output is correct
25 Correct 20 ms 43372 KB Output is correct
26 Correct 18 ms 43336 KB Output is correct
27 Correct 18 ms 43384 KB Output is correct
28 Correct 18 ms 43356 KB Output is correct
29 Correct 18 ms 43348 KB Output is correct
30 Correct 18 ms 43348 KB Output is correct
31 Correct 20 ms 43348 KB Output is correct
32 Correct 19 ms 43300 KB Output is correct
33 Correct 18 ms 43300 KB Output is correct
34 Correct 18 ms 43284 KB Output is correct
35 Correct 22 ms 43348 KB Output is correct
36 Correct 22 ms 43368 KB Output is correct
37 Correct 18 ms 43340 KB Output is correct
38 Correct 18 ms 43336 KB Output is correct
39 Correct 18 ms 43348 KB Output is correct
40 Correct 17 ms 43280 KB Output is correct
41 Correct 17 ms 43276 KB Output is correct
42 Correct 19 ms 43340 KB Output is correct
43 Correct 18 ms 43344 KB Output is correct
44 Correct 18 ms 43332 KB Output is correct
45 Correct 18 ms 43292 KB Output is correct
46 Correct 19 ms 43376 KB Output is correct
47 Correct 18 ms 43344 KB Output is correct
48 Correct 18 ms 43340 KB Output is correct
49 Correct 19 ms 43340 KB Output is correct
50 Correct 19 ms 43384 KB Output is correct
51 Correct 22 ms 43344 KB Output is correct
52 Correct 19 ms 43336 KB Output is correct
53 Correct 17 ms 43348 KB Output is correct
54 Correct 17 ms 43280 KB Output is correct
55 Correct 18 ms 43344 KB Output is correct
56 Correct 17 ms 43348 KB Output is correct
57 Correct 18 ms 43348 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 43348 KB Output is correct
2 Correct 17 ms 43324 KB Output is correct
3 Correct 18 ms 43340 KB Output is correct
4 Correct 18 ms 43348 KB Output is correct
5 Correct 20 ms 43316 KB Output is correct
6 Correct 17 ms 43348 KB Output is correct
7 Correct 17 ms 43308 KB Output is correct
8 Correct 17 ms 43340 KB Output is correct
9 Correct 19 ms 43348 KB Output is correct
10 Correct 20 ms 43260 KB Output is correct
11 Correct 20 ms 43344 KB Output is correct
12 Correct 19 ms 43340 KB Output is correct
13 Correct 17 ms 43276 KB Output is correct
14 Correct 17 ms 43300 KB Output is correct
15 Correct 17 ms 43348 KB Output is correct
16 Correct 18 ms 43268 KB Output is correct
17 Correct 17 ms 43348 KB Output is correct
18 Correct 19 ms 43348 KB Output is correct
19 Correct 23 ms 43348 KB Output is correct
20 Correct 17 ms 43348 KB Output is correct
21 Correct 17 ms 43312 KB Output is correct
22 Correct 19 ms 43356 KB Output is correct
23 Correct 18 ms 43388 KB Output is correct
24 Correct 17 ms 43348 KB Output is correct
25 Correct 20 ms 43372 KB Output is correct
26 Correct 18 ms 43336 KB Output is correct
27 Correct 18 ms 43384 KB Output is correct
28 Correct 18 ms 43356 KB Output is correct
29 Correct 18 ms 43348 KB Output is correct
30 Correct 18 ms 43348 KB Output is correct
31 Correct 20 ms 43348 KB Output is correct
32 Correct 19 ms 43300 KB Output is correct
33 Correct 18 ms 43300 KB Output is correct
34 Correct 18 ms 43284 KB Output is correct
35 Correct 22 ms 43348 KB Output is correct
36 Correct 22 ms 43368 KB Output is correct
37 Correct 18 ms 43340 KB Output is correct
38 Correct 18 ms 43336 KB Output is correct
39 Correct 18 ms 43348 KB Output is correct
40 Correct 17 ms 43280 KB Output is correct
41 Correct 17 ms 43276 KB Output is correct
42 Correct 19 ms 43340 KB Output is correct
43 Correct 18 ms 43344 KB Output is correct
44 Correct 18 ms 43332 KB Output is correct
45 Correct 18 ms 43292 KB Output is correct
46 Correct 19 ms 43376 KB Output is correct
47 Correct 18 ms 43344 KB Output is correct
48 Correct 18 ms 43340 KB Output is correct
49 Correct 19 ms 43340 KB Output is correct
50 Correct 19 ms 43384 KB Output is correct
51 Correct 22 ms 43344 KB Output is correct
52 Correct 19 ms 43336 KB Output is correct
53 Correct 17 ms 43348 KB Output is correct
54 Correct 17 ms 43280 KB Output is correct
55 Correct 18 ms 43344 KB Output is correct
56 Correct 17 ms 43348 KB Output is correct
57 Correct 18 ms 43348 KB Output is correct
58 Correct 22 ms 43460 KB Output is correct
59 Correct 22 ms 43836 KB Output is correct
60 Correct 26 ms 43828 KB Output is correct
61 Correct 64 ms 43844 KB Output is correct
62 Correct 188 ms 44444 KB Output is correct
63 Correct 31 ms 44364 KB Output is correct
64 Correct 107 ms 44576 KB Output is correct
65 Correct 18 ms 43340 KB Output is correct
66 Correct 18 ms 43308 KB Output is correct
67 Correct 18 ms 43348 KB Output is correct
68 Correct 17 ms 43336 KB Output is correct
69 Correct 18 ms 43348 KB Output is correct
70 Correct 20 ms 43348 KB Output is correct
71 Correct 32 ms 43476 KB Output is correct
72 Correct 19 ms 43400 KB Output is correct
73 Correct 23 ms 43452 KB Output is correct
74 Correct 22 ms 43860 KB Output is correct
75 Correct 26 ms 43852 KB Output is correct
76 Correct 71 ms 43840 KB Output is correct
77 Correct 196 ms 44440 KB Output is correct
78 Correct 30 ms 44364 KB Output is correct
79 Correct 100 ms 44436 KB Output is correct
80 Correct 28 ms 44340 KB Output is correct
81 Correct 45 ms 44364 KB Output is correct
82 Correct 190 ms 44404 KB Output is correct
83 Correct 18 ms 43376 KB Output is correct
84 Correct 18 ms 43288 KB Output is correct
85 Correct 31 ms 43476 KB Output is correct
86 Correct 18 ms 43476 KB Output is correct
87 Correct 21 ms 43476 KB Output is correct
88 Correct 22 ms 43916 KB Output is correct
89 Correct 25 ms 43992 KB Output is correct
90 Correct 66 ms 44020 KB Output is correct
91 Correct 177 ms 44732 KB Output is correct
92 Correct 30 ms 44724 KB Output is correct
93 Correct 96 ms 44832 KB Output is correct
94 Correct 20 ms 43408 KB Output is correct
95 Correct 29 ms 43476 KB Output is correct
96 Correct 18 ms 43344 KB Output is correct
97 Correct 18 ms 43344 KB Output is correct
98 Correct 18 ms 43348 KB Output is correct
99 Correct 18 ms 43244 KB Output is correct