oj.uz

Submission #867959

# Submission time Handle Problem Language Result Execution time Memory
867959 2023-10-30T01:54:12 Z mgl_diamond K blocks (IZhO14_blocks) C++17
100 / 100
 131 ms 4420 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ii = pair<int, int>;

#define foru(i, l, r) for(int i=(l); i<=(r); ++i)
#define ford(i, l, r) for(int i=(l); i>=(r); --i)
#define fore(x, v) for(auto &x : v)
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
#define fi first
#define se second
#define file "input"

void setIO() {
  ios::sync_with_stdio(0);
  cin.tie(0); cout.tie(0);
  if (fopen(file".inp", "r")) {
    freopen(file".inp", "r", stdin);
    freopen(file".out", "w", stdout);
  }
}

const ll INF = 1e18;
const int N = 1e5+5, K = 1e2+2;

int n, k;
ll a[N], prv[N], cur[N], f[N];

int main() {
  setIO();

  memset(prv, 0x3f, sizeof(prv));
  cin >> n >> k;
  foru(i, 1, n) {
    cin >> a[i];
    prv[i] = a[i];
    if (i > 1 && prv[i] < prv[i-1]) prv[i] = prv[i-1];
  }

  foru(i, 2, k) {
    stack<int> st;
    memset(f, 0x3f, sizeof(f));
    memset(cur, 0x3f, sizeof(cur));

    foru(j, 1, n) {
      f[j] = prv[j-1];
      while (!st.empty() && a[st.top()] <= a[j]) {
        f[j] = min(f[j], f[st.top()]);
        st.pop();
      }

      if (f[j] < INF) cur[j] = min(cur[j], f[j] + a[j]);
      if (!st.empty()) cur[j] = min(cur[j], cur[st.top()]);

      st.push(j);
    }

//    foru(j, 1, n) {
//      cout << cur[j] << " ";
//    }
//    cout << "\n";

    foru(j, 1, n) {
      prv[j] = cur[j];
    }
  }

  cout << prv[n];
}

Compilation message

blocks.cpp: In function 'void setIO()':
blocks.cpp:19:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |     freopen(file".inp", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
blocks.cpp:20:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |     freopen(file".out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2648 KB Output is correct
6 Correct 0 ms 2424 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 2904 KB Output is correct
12 Correct 1 ms 2424 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2652 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2648 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 2652 KB Output is correct
12 Correct 1 ms 2648 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2640 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 1 ms 2648 KB Output is correct
18 Correct 1 ms 2652 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 1 ms 2652 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2648 KB Output is correct
6 Correct 0 ms 2424 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 2904 KB Output is correct
12 Correct 1 ms 2424 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2652 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 0 ms 2396 KB Output is correct
21 Correct 0 ms 2396 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 1 ms 2652 KB Output is correct
24 Correct 1 ms 2648 KB Output is correct
25 Correct 1 ms 2652 KB Output is correct
26 Correct 1 ms 2652 KB Output is correct
27 Correct 1 ms 2652 KB Output is correct
28 Correct 1 ms 2652 KB Output is correct
29 Correct 1 ms 2652 KB Output is correct
30 Correct 1 ms 2648 KB Output is correct
31 Correct 1 ms 2652 KB Output is correct
32 Correct 1 ms 2652 KB Output is correct
33 Correct 1 ms 2640 KB Output is correct
34 Correct 1 ms 2652 KB Output is correct
35 Correct 1 ms 2648 KB Output is correct
36 Correct 1 ms 2652 KB Output is correct
37 Correct 1 ms 2652 KB Output is correct
38 Correct 1 ms 2652 KB Output is correct
39 Correct 2 ms 2652 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 0 ms 2396 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 1 ms 2652 KB Output is correct
44 Correct 1 ms 2652 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2640 KB Output is correct
47 Correct 1 ms 2656 KB Output is correct
48 Correct 1 ms 2656 KB Output is correct
49 Correct 1 ms 2656 KB Output is correct
50 Correct 1 ms 2656 KB Output is correct
51 Correct 1 ms 2640 KB Output is correct
52 Correct 1 ms 2656 KB Output is correct
53 Correct 3 ms 2816 KB Output is correct
54 Correct 3 ms 2656 KB Output is correct
55 Correct 2 ms 2656 KB Output is correct
56 Correct 3 ms 2656 KB Output is correct
57 Correct 4 ms 2912 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2648 KB Output is correct
6 Correct 0 ms 2424 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 2904 KB Output is correct
12 Correct 1 ms 2424 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2652 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 0 ms 2396 KB Output is correct
21 Correct 0 ms 2396 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 1 ms 2652 KB Output is correct
24 Correct 1 ms 2648 KB Output is correct
25 Correct 1 ms 2652 KB Output is correct
26 Correct 1 ms 2652 KB Output is correct
27 Correct 1 ms 2652 KB Output is correct
28 Correct 1 ms 2652 KB Output is correct
29 Correct 1 ms 2652 KB Output is correct
30 Correct 1 ms 2648 KB Output is correct
31 Correct 1 ms 2652 KB Output is correct
32 Correct 1 ms 2652 KB Output is correct
33 Correct 1 ms 2640 KB Output is correct
34 Correct 1 ms 2652 KB Output is correct
35 Correct 1 ms 2648 KB Output is correct
36 Correct 1 ms 2652 KB Output is correct
37 Correct 1 ms 2652 KB Output is correct
38 Correct 1 ms 2652 KB Output is correct
39 Correct 2 ms 2652 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 0 ms 2396 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 1 ms 2652 KB Output is correct
44 Correct 1 ms 2652 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2640 KB Output is correct
47 Correct 1 ms 2656 KB Output is correct
48 Correct 1 ms 2656 KB Output is correct
49 Correct 1 ms 2656 KB Output is correct
50 Correct 1 ms 2656 KB Output is correct
51 Correct 1 ms 2640 KB Output is correct
52 Correct 1 ms 2656 KB Output is correct
53 Correct 3 ms 2816 KB Output is correct
54 Correct 3 ms 2656 KB Output is correct
55 Correct 2 ms 2656 KB Output is correct
56 Correct 3 ms 2656 KB Output is correct
57 Correct 4 ms 2912 KB Output is correct
58 Correct 4 ms 3096 KB Output is correct
59 Correct 3 ms 3164 KB Output is correct
60 Correct 6 ms 3420 KB Output is correct
61 Correct 36 ms 3468 KB Output is correct
62 Correct 97 ms 4252 KB Output is correct
63 Correct 9 ms 4184 KB Output is correct
64 Correct 47 ms 4048 KB Output is correct
65 Correct 2 ms 2648 KB Output is correct
66 Correct 2 ms 2804 KB Output is correct
67 Correct 2 ms 2816 KB Output is correct
68 Correct 2 ms 2904 KB Output is correct
69 Correct 1 ms 2652 KB Output is correct
70 Correct 1 ms 2652 KB Output is correct
71 Correct 15 ms 2956 KB Output is correct
72 Correct 2 ms 2908 KB Output is correct
73 Correct 5 ms 2908 KB Output is correct
74 Correct 3 ms 3164 KB Output is correct
75 Correct 8 ms 3420 KB Output is correct
76 Correct 46 ms 3420 KB Output is correct
77 Correct 129 ms 4188 KB Output is correct
78 Correct 10 ms 4188 KB Output is correct
79 Correct 62 ms 4184 KB Output is correct
80 Correct 7 ms 3928 KB Output is correct
81 Correct 19 ms 4276 KB Output is correct
82 Correct 131 ms 4188 KB Output is correct
83 Correct 1 ms 2648 KB Output is correct
84 Correct 1 ms 2652 KB Output is correct
85 Correct 13 ms 2984 KB Output is correct
86 Correct 2 ms 2912 KB Output is correct
87 Correct 4 ms 2908 KB Output is correct
88 Correct 3 ms 3164 KB Output is correct
89 Correct 7 ms 3416 KB Output is correct
90 Correct 48 ms 3416 KB Output is correct
91 Correct 110 ms 4400 KB Output is correct
92 Correct 9 ms 4188 KB Output is correct
93 Correct 61 ms 4420 KB Output is correct
94 Correct 2 ms 2904 KB Output is correct
95 Correct 12 ms 3160 KB Output is correct
96 Correct 1 ms 2652 KB Output is correct
97 Correct 1 ms 2652 KB Output is correct
98 Correct 1 ms 2652 KB Output is correct
99 Correct 1 ms 2652 KB Output is correct