oj.uz

Submission #671808

# Submission time Handle Problem Language Result Execution time Memory
671808 2022-12-14T02:49:44 Z Alihan_8 K blocks (IZhO14_blocks) C++17
100 / 100
 290 ms 160932 KB 
#include <bits/stdc++.h>
// include <ext/pb_ds/assoc_container.hpp>
// include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
using namespace std;
#define all(x) x.begin(), x.end()
#define pb push_back
// define ordered_set tree<int,null_type,less_equal<int>,rb_tree_tag,tree_order_statistics_node_update>
#define mpr make_pair
#define ln '\n'
void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
#define int long long
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n, k; cin >> n >> k;
    const int inf = 1e15;
    vector <int> p(n+1, inf);
    for ( int i = 1; i <= n; i++ ) cin >> p[i];
    vector <vector<int>> dp(k+1, vector <int> (n+1, inf)), f(k+1, vector <int> (n+1, inf));
    dp[0][0] = 0;
    auto chmin = [&](int &l, int r){l = min(l, r);};
    for ( int i = 1; i <= k; i++ ){
        stack <int> st;
        st.push(0);
        int Mx = -inf;
        for ( int j = 1; j <= n; j++ ){
            Mx = max(Mx, p[j]);
            if ( i == 1 ) dp[i][j] = f[i][j] = Mx;
            while ( p[st.top()] <= p[j] ){
                int last = st.top(); st.pop();
                chmin(f[i-1][st.top()], f[i-1][last]);
            }
            chmin(dp[i][j], dp[i][st.top()]);
            chmin(dp[i][j], f[i-1][st.top()]+p[j]);
            f[i][j] = dp[i][j];
            st.push(j);
        }
    }
    cout << dp[k].back();

    cout << '\n';
}

Compilation message

blocks.cpp: In function 'void IO(std::string)':
blocks.cpp:11:29: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
blocks.cpp:11:70: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                                                               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 312 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 324 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 320 KB Output is correct
20 Correct 0 ms 212 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 312 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 324 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 324 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 0 ms 320 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 0 ms 316 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 324 KB Output is correct
44 Correct 1 ms 324 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 468 KB Output is correct
54 Correct 1 ms 468 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 448 KB Output is correct
57 Correct 1 ms 468 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 312 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 324 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 324 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 0 ms 320 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 0 ms 316 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 324 KB Output is correct
44 Correct 1 ms 324 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 468 KB Output is correct
54 Correct 1 ms 468 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 448 KB Output is correct
57 Correct 1 ms 468 KB Output is correct
58 Correct 8 ms 4564 KB Output is correct
59 Correct 6 ms 2688 KB Output is correct
60 Correct 14 ms 6896 KB Output is correct
61 Correct 92 ms 55032 KB Output is correct
62 Correct 264 ms 160928 KB Output is correct
63 Correct 19 ms 8772 KB Output is correct
64 Correct 125 ms 74552 KB Output is correct
65 Correct 1 ms 316 KB Output is correct
66 Correct 1 ms 340 KB Output is correct
67 Correct 1 ms 340 KB Output is correct
68 Correct 1 ms 324 KB Output is correct
69 Correct 1 ms 328 KB Output is correct
70 Correct 1 ms 468 KB Output is correct
71 Correct 30 ms 16340 KB Output is correct
72 Correct 2 ms 980 KB Output is correct
73 Correct 8 ms 4564 KB Output is correct
74 Correct 6 ms 2712 KB Output is correct
75 Correct 14 ms 6776 KB Output is correct
76 Correct 101 ms 54884 KB Output is correct
77 Correct 287 ms 160828 KB Output is correct
78 Correct 18 ms 8760 KB Output is correct
79 Correct 139 ms 74656 KB Output is correct
80 Correct 13 ms 5572 KB Output is correct
81 Correct 42 ms 19776 KB Output is correct
82 Correct 290 ms 160828 KB Output is correct
83 Correct 1 ms 340 KB Output is correct
84 Correct 1 ms 468 KB Output is correct
85 Correct 27 ms 16340 KB Output is correct
86 Correct 2 ms 980 KB Output is correct
87 Correct 8 ms 4560 KB Output is correct
88 Correct 6 ms 2680 KB Output is correct
89 Correct 13 ms 6896 KB Output is correct
90 Correct 90 ms 54960 KB Output is correct
91 Correct 257 ms 160932 KB Output is correct
92 Correct 18 ms 8768 KB Output is correct
93 Correct 125 ms 74668 KB Output is correct
94 Correct 2 ms 980 KB Output is correct
95 Correct 27 ms 16328 KB Output is correct
96 Correct 1 ms 468 KB Output is correct
97 Correct 1 ms 340 KB Output is correct
98 Correct 0 ms 212 KB Output is correct
99 Correct 1 ms 212 KB Output is correct