oj.uz

Submission #1078072

# Submission time Handle Problem Language Result Execution time Memory
1078072 2024-08-27T12:13:55 Z Wjsc K blocks (IZhO14_blocks) C++14
100 / 100
 195 ms 84820 KB 
#include<bits/stdc++.h>

using namespace std;

#define int long long
#define pi pair<int, int>
#define fi first
#define se second
#define all(v) v.begin(), v.end()

const int N = 1e5 + 5,
          M = 1e2 + 5;

int n, k;
int a[N];
int f[N][M];

signed main() {
  cin.tie(0)->sync_with_stdio(0);
  if(fopen("task.inp", "r")) {
    freopen("task.inp", "r", stdin);
    freopen("task.out", "w", stdout);
  }

  memset(f, 120, sizeof f);

  cin >> n >> k;
  for(int i = 1; i <= n; ++i) {
    cin >> a[i];
    if(i > 1) f[i][1] = max(f[i - 1][1], a[i]);
    else f[i][1] = a[i];
  }

  for(int j = 2; j <= k; ++j) {
    stack<pi> st;

    for(int i = j; i <= n; ++i) {
      int c = f[i - 1][j - 1];
      while(st.size() && a[st.top().fi] <= a[i]) {
        c = min(c, st.top().se);
        st.pop();
      }

      f[i][j] = c + a[i];
      if(st.size()) f[i][j] = min(f[i][j], f[st.top().fi][j]);
      st.push({i, c});
    }
  }

  cout << f[n][k];
}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:21:12: 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:22:12: 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 41 ms 82552 KB Output is correct
2 Correct 35 ms 82516 KB Output is correct
3 Correct 37 ms 82512 KB Output is correct
4 Correct 37 ms 82512 KB Output is correct
5 Correct 50 ms 82480 KB Output is correct
6 Correct 48 ms 82520 KB Output is correct
7 Correct 40 ms 82512 KB Output is correct
8 Correct 45 ms 82512 KB Output is correct
9 Correct 40 ms 82552 KB Output is correct
10 Correct 41 ms 82524 KB Output is correct
11 Correct 41 ms 82512 KB Output is correct
12 Correct 52 ms 82520 KB Output is correct
13 Correct 46 ms 82632 KB Output is correct
14 Correct 38 ms 82512 KB Output is correct
15 Correct 38 ms 82516 KB Output is correct
16 Correct 41 ms 82424 KB Output is correct
17 Correct 40 ms 82512 KB Output is correct
18 Correct 36 ms 82528 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 82516 KB Output is correct
2 Correct 41 ms 82520 KB Output is correct
3 Correct 39 ms 82504 KB Output is correct
4 Correct 56 ms 82512 KB Output is correct
5 Correct 40 ms 82516 KB Output is correct
6 Correct 59 ms 82432 KB Output is correct
7 Correct 39 ms 82516 KB Output is correct
8 Correct 37 ms 82628 KB Output is correct
9 Correct 44 ms 82512 KB Output is correct
10 Correct 40 ms 82580 KB Output is correct
11 Correct 40 ms 82512 KB Output is correct
12 Correct 36 ms 82512 KB Output is correct
13 Correct 41 ms 82512 KB Output is correct
14 Correct 38 ms 82516 KB Output is correct
15 Correct 35 ms 82512 KB Output is correct
16 Correct 39 ms 82524 KB Output is correct
17 Correct 39 ms 82592 KB Output is correct
18 Correct 39 ms 82620 KB Output is correct
19 Correct 40 ms 82516 KB Output is correct
20 Correct 39 ms 82516 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 82552 KB Output is correct
2 Correct 35 ms 82516 KB Output is correct
3 Correct 37 ms 82512 KB Output is correct
4 Correct 37 ms 82512 KB Output is correct
5 Correct 50 ms 82480 KB Output is correct
6 Correct 48 ms 82520 KB Output is correct
7 Correct 40 ms 82512 KB Output is correct
8 Correct 45 ms 82512 KB Output is correct
9 Correct 40 ms 82552 KB Output is correct
10 Correct 41 ms 82524 KB Output is correct
11 Correct 41 ms 82512 KB Output is correct
12 Correct 52 ms 82520 KB Output is correct
13 Correct 46 ms 82632 KB Output is correct
14 Correct 38 ms 82512 KB Output is correct
15 Correct 38 ms 82516 KB Output is correct
16 Correct 41 ms 82424 KB Output is correct
17 Correct 40 ms 82512 KB Output is correct
18 Correct 36 ms 82528 KB Output is correct
19 Correct 49 ms 82516 KB Output is correct
20 Correct 41 ms 82520 KB Output is correct
21 Correct 39 ms 82504 KB Output is correct
22 Correct 56 ms 82512 KB Output is correct
23 Correct 40 ms 82516 KB Output is correct
24 Correct 59 ms 82432 KB Output is correct
25 Correct 39 ms 82516 KB Output is correct
26 Correct 37 ms 82628 KB Output is correct
27 Correct 44 ms 82512 KB Output is correct
28 Correct 40 ms 82580 KB Output is correct
29 Correct 40 ms 82512 KB Output is correct
30 Correct 36 ms 82512 KB Output is correct
31 Correct 41 ms 82512 KB Output is correct
32 Correct 38 ms 82516 KB Output is correct
33 Correct 35 ms 82512 KB Output is correct
34 Correct 39 ms 82524 KB Output is correct
35 Correct 39 ms 82592 KB Output is correct
36 Correct 39 ms 82620 KB Output is correct
37 Correct 40 ms 82516 KB Output is correct
38 Correct 39 ms 82516 KB Output is correct
39 Correct 39 ms 82596 KB Output is correct
40 Correct 42 ms 82516 KB Output is correct
41 Correct 39 ms 82516 KB Output is correct
42 Correct 35 ms 82516 KB Output is correct
43 Correct 44 ms 82524 KB Output is correct
44 Correct 42 ms 82516 KB Output is correct
45 Correct 41 ms 82516 KB Output is correct
46 Correct 48 ms 82768 KB Output is correct
47 Correct 42 ms 82512 KB Output is correct
48 Correct 42 ms 82632 KB Output is correct
49 Correct 41 ms 82620 KB Output is correct
50 Correct 40 ms 82520 KB Output is correct
51 Correct 40 ms 82404 KB Output is correct
52 Correct 40 ms 82516 KB Output is correct
53 Correct 43 ms 82772 KB Output is correct
54 Correct 41 ms 82516 KB Output is correct
55 Correct 40 ms 82396 KB Output is correct
56 Correct 41 ms 82512 KB Output is correct
57 Correct 40 ms 82516 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 82552 KB Output is correct
2 Correct 35 ms 82516 KB Output is correct
3 Correct 37 ms 82512 KB Output is correct
4 Correct 37 ms 82512 KB Output is correct
5 Correct 50 ms 82480 KB Output is correct
6 Correct 48 ms 82520 KB Output is correct
7 Correct 40 ms 82512 KB Output is correct
8 Correct 45 ms 82512 KB Output is correct
9 Correct 40 ms 82552 KB Output is correct
10 Correct 41 ms 82524 KB Output is correct
11 Correct 41 ms 82512 KB Output is correct
12 Correct 52 ms 82520 KB Output is correct
13 Correct 46 ms 82632 KB Output is correct
14 Correct 38 ms 82512 KB Output is correct
15 Correct 38 ms 82516 KB Output is correct
16 Correct 41 ms 82424 KB Output is correct
17 Correct 40 ms 82512 KB Output is correct
18 Correct 36 ms 82528 KB Output is correct
19 Correct 49 ms 82516 KB Output is correct
20 Correct 41 ms 82520 KB Output is correct
21 Correct 39 ms 82504 KB Output is correct
22 Correct 56 ms 82512 KB Output is correct
23 Correct 40 ms 82516 KB Output is correct
24 Correct 59 ms 82432 KB Output is correct
25 Correct 39 ms 82516 KB Output is correct
26 Correct 37 ms 82628 KB Output is correct
27 Correct 44 ms 82512 KB Output is correct
28 Correct 40 ms 82580 KB Output is correct
29 Correct 40 ms 82512 KB Output is correct
30 Correct 36 ms 82512 KB Output is correct
31 Correct 41 ms 82512 KB Output is correct
32 Correct 38 ms 82516 KB Output is correct
33 Correct 35 ms 82512 KB Output is correct
34 Correct 39 ms 82524 KB Output is correct
35 Correct 39 ms 82592 KB Output is correct
36 Correct 39 ms 82620 KB Output is correct
37 Correct 40 ms 82516 KB Output is correct
38 Correct 39 ms 82516 KB Output is correct
39 Correct 39 ms 82596 KB Output is correct
40 Correct 42 ms 82516 KB Output is correct
41 Correct 39 ms 82516 KB Output is correct
42 Correct 35 ms 82516 KB Output is correct
43 Correct 44 ms 82524 KB Output is correct
44 Correct 42 ms 82516 KB Output is correct
45 Correct 41 ms 82516 KB Output is correct
46 Correct 48 ms 82768 KB Output is correct
47 Correct 42 ms 82512 KB Output is correct
48 Correct 42 ms 82632 KB Output is correct
49 Correct 41 ms 82620 KB Output is correct
50 Correct 40 ms 82520 KB Output is correct
51 Correct 40 ms 82404 KB Output is correct
52 Correct 40 ms 82516 KB Output is correct
53 Correct 43 ms 82772 KB Output is correct
54 Correct 41 ms 82516 KB Output is correct
55 Correct 40 ms 82396 KB Output is correct
56 Correct 41 ms 82512 KB Output is correct
57 Correct 40 ms 82516 KB Output is correct
58 Correct 45 ms 82772 KB Output is correct
59 Correct 44 ms 83252 KB Output is correct
60 Correct 46 ms 83284 KB Output is correct
61 Correct 80 ms 83280 KB Output is correct
62 Correct 180 ms 84048 KB Output is correct
63 Correct 49 ms 83952 KB Output is correct
64 Correct 116 ms 84092 KB Output is correct
65 Correct 41 ms 82512 KB Output is correct
66 Correct 40 ms 82524 KB Output is correct
67 Correct 35 ms 82516 KB Output is correct
68 Correct 39 ms 82544 KB Output is correct
69 Correct 41 ms 82516 KB Output is correct
70 Correct 42 ms 82516 KB Output is correct
71 Correct 52 ms 82768 KB Output is correct
72 Correct 38 ms 82612 KB Output is correct
73 Correct 41 ms 82772 KB Output is correct
74 Correct 42 ms 83060 KB Output is correct
75 Correct 44 ms 83180 KB Output is correct
76 Correct 89 ms 83280 KB Output is correct
77 Correct 183 ms 84048 KB Output is correct
78 Correct 48 ms 84048 KB Output is correct
79 Correct 115 ms 84052 KB Output is correct
80 Correct 46 ms 84052 KB Output is correct
81 Correct 59 ms 84064 KB Output is correct
82 Correct 185 ms 84052 KB Output is correct
83 Correct 38 ms 82516 KB Output is correct
84 Correct 38 ms 82548 KB Output is correct
85 Correct 55 ms 82776 KB Output is correct
86 Correct 41 ms 82824 KB Output is correct
87 Correct 44 ms 82772 KB Output is correct
88 Correct 44 ms 83284 KB Output is correct
89 Correct 44 ms 83536 KB Output is correct
90 Correct 88 ms 83544 KB Output is correct
91 Correct 195 ms 84676 KB Output is correct
92 Correct 62 ms 84820 KB Output is correct
93 Correct 115 ms 84672 KB Output is correct
94 Correct 54 ms 82768 KB Output is correct
95 Correct 52 ms 82772 KB Output is correct
96 Correct 40 ms 82512 KB Output is correct
97 Correct 35 ms 82512 KB Output is correct
98 Correct 40 ms 82516 KB Output is correct
99 Correct 40 ms 82472 KB Output is correct