oj.uz

Submission #201178

# Submission time Handle Problem Language Result Execution time Memory
201178 2020-02-09T15:33:05 Z quocnguyen1012 K blocks (IZhO14_blocks) C++14
100 / 100
 365 ms 43924 KB 
#include <bits/stdc++.h>

#define fi first
#define se second
#define mp make_pair
#define pb push_back

using namespace std;
typedef long long ll;

const int maxn = 1e5 + 5;

int a[maxn], f[maxn][105];
int N, K;

signed main(void)
{
  ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  if (fopen("A.INP", "r")){
    freopen("A.INP", "r", stdin);
    freopen("A.OUT", "w", stdout);
  }
  cin >> N >> K;
  fill_n(&f[0][0], maxn * 105, 1e9 + 5);
  int mx = 0;
  for (int i = 1; i <= N; ++i){
    cin >> a[i];
    mx = max(mx, a[i]);
    f[i][1] = mx;
  }
  for (int j = 2; j <= K; ++j){
    vector<pair<pair<int, int>, int>> vec;
    for (int i = 1; i <= N; ++i){
      int v = f[i - 1][j - 1];
      while (vec.size() && vec.back().fi.fi <= a[i]){
        v = min(v, vec.back().fi.se);
        vec.pop_back();
      }
      int val = v + a[i];
      if (vec.size()){
        val = min(val, vec.back().se);
      }
      f[i][j] = val;
      vec.pb(mp(mp(a[i], v), val));
    }
  }
  cout << f[N][K];
}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:20:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     freopen("A.INP", "r", stdin);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
blocks.cpp:21:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     freopen("A.OUT", "w", stdout);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 41464 KB Output is correct
2 Correct 32 ms 41464 KB Output is correct
3 Correct 30 ms 41464 KB Output is correct
4 Correct 32 ms 41464 KB Output is correct
5 Correct 31 ms 41464 KB Output is correct
6 Correct 31 ms 41464 KB Output is correct
7 Correct 31 ms 41464 KB Output is correct
8 Correct 34 ms 41592 KB Output is correct
9 Correct 30 ms 41464 KB Output is correct
10 Correct 31 ms 41464 KB Output is correct
11 Correct 31 ms 41464 KB Output is correct
12 Correct 31 ms 41464 KB Output is correct
13 Correct 32 ms 41464 KB Output is correct
14 Correct 33 ms 41464 KB Output is correct
15 Correct 31 ms 41464 KB Output is correct
16 Correct 31 ms 41464 KB Output is correct
17 Correct 34 ms 41464 KB Output is correct
18 Correct 31 ms 41464 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 41464 KB Output is correct
2 Correct 31 ms 41464 KB Output is correct
3 Correct 34 ms 41464 KB Output is correct
4 Correct 32 ms 41468 KB Output is correct
5 Correct 31 ms 41464 KB Output is correct
6 Correct 31 ms 41464 KB Output is correct
7 Correct 32 ms 41468 KB Output is correct
8 Correct 31 ms 41464 KB Output is correct
9 Correct 33 ms 41464 KB Output is correct
10 Correct 32 ms 41464 KB Output is correct
11 Correct 31 ms 41464 KB Output is correct
12 Correct 31 ms 41464 KB Output is correct
13 Correct 32 ms 41464 KB Output is correct
14 Correct 31 ms 41440 KB Output is correct
15 Correct 31 ms 41464 KB Output is correct
16 Correct 34 ms 41464 KB Output is correct
17 Correct 31 ms 41464 KB Output is correct
18 Correct 46 ms 41464 KB Output is correct
19 Correct 31 ms 41464 KB Output is correct
20 Correct 32 ms 41464 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 41464 KB Output is correct
2 Correct 35 ms 41464 KB Output is correct
3 Correct 32 ms 41464 KB Output is correct
4 Correct 31 ms 41464 KB Output is correct
5 Correct 32 ms 41464 KB Output is correct
6 Correct 32 ms 41464 KB Output is correct
7 Correct 32 ms 41464 KB Output is correct
8 Correct 39 ms 41464 KB Output is correct
9 Correct 34 ms 41464 KB Output is correct
10 Correct 33 ms 41464 KB Output is correct
11 Correct 32 ms 41464 KB Output is correct
12 Correct 31 ms 41464 KB Output is correct
13 Correct 31 ms 41464 KB Output is correct
14 Correct 34 ms 41464 KB Output is correct
15 Correct 31 ms 41464 KB Output is correct
16 Correct 33 ms 41464 KB Output is correct
17 Correct 32 ms 41464 KB Output is correct
18 Correct 32 ms 41464 KB Output is correct
19 Correct 32 ms 41464 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 41464 KB Output is correct
2 Correct 37 ms 41592 KB Output is correct
3 Correct 42 ms 41592 KB Output is correct
4 Correct 103 ms 41592 KB Output is correct
5 Correct 333 ms 42488 KB Output is correct
6 Correct 57 ms 42616 KB Output is correct
7 Correct 174 ms 42488 KB Output is correct
8 Correct 31 ms 41464 KB Output is correct
9 Correct 31 ms 41464 KB Output is correct
10 Correct 32 ms 41464 KB Output is correct
11 Correct 32 ms 41464 KB Output is correct
12 Correct 32 ms 41464 KB Output is correct
13 Correct 33 ms 41464 KB Output is correct
14 Correct 51 ms 41592 KB Output is correct
15 Correct 35 ms 41592 KB Output is correct
16 Correct 38 ms 41592 KB Output is correct
17 Correct 40 ms 41976 KB Output is correct
18 Correct 43 ms 41976 KB Output is correct
19 Correct 117 ms 41976 KB Output is correct
20 Correct 315 ms 42488 KB Output is correct
21 Correct 49 ms 42488 KB Output is correct
22 Correct 167 ms 42492 KB Output is correct
23 Correct 45 ms 42488 KB Output is correct
24 Correct 70 ms 42492 KB Output is correct
25 Correct 312 ms 42616 KB Output is correct
26 Correct 268 ms 41464 KB Output is correct
27 Correct 31 ms 41464 KB Output is correct
28 Correct 51 ms 41592 KB Output is correct
29 Correct 33 ms 41592 KB Output is correct
30 Correct 38 ms 41592 KB Output is correct
31 Correct 37 ms 41976 KB Output is correct
32 Correct 45 ms 42356 KB Output is correct
33 Correct 119 ms 42360 KB Output is correct
34 Correct 365 ms 43924 KB Output is correct
35 Correct 51 ms 43716 KB Output is correct
36 Correct 191 ms 43852 KB Output is correct
37 Correct 38 ms 41592 KB Output is correct
38 Correct 54 ms 41592 KB Output is correct
39 Correct 34 ms 41464 KB Output is correct
40 Correct 32 ms 41464 KB Output is correct
41 Correct 33 ms 41464 KB Output is correct
42 Correct 32 ms 41468 KB Output is correct