oj.uz

Submission #471398

# Submission time Handle Problem Language Result Execution time Memory
471398 2021-09-09T00:25:43 Z xhuy8248 K blocks (IZhO14_blocks) C++14
100 / 100
 183 ms 40696 KB 
#include <bits/stdc++.h>
using namespace std;
#define FOR(i, a, b) for (int i = a; i <= b; i++)
#define ii pair <int, int>
#define ST first
#define ND second
#define TASK "XHUY"

const int N = 1e5 + 5;

int n, k, a[N], dP[105][N];

int main()
{
    if (fopen(TASK".INP", "r"))
    {
        freopen(TASK".INP", "r", stdin);
        freopen(TASK".OUT", "w", stdout);
    }
    ios_base::sync_with_stdio(false); cin.tie(NULL);
    cin >> n >> k;
    FOR(i, 1, n)
        cin >> a[i], dP[1][i] = max(dP[1][i - 1], a[i]);
    FOR(i, 2, k)
    {
        stack <ii> st;
        FOR(j, i, n)
        {
            int M = dP[i - 1][j - 1];
            while (!st.empty() && a[st.top().ND] <= a[j])
            {
                M = min(M, st.top().ST);
                st.pop();
            }
            dP[i][j] = M + a[j];
            if (!st.empty())
                dP[i][j] = min(dP[i][j], dP[i][st.top().ND]);
            st.push({M, j});
        }
    }
    cout << dP[k][n];
    return 0;
}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:17:16: 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:18:16: 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);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 352 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 324 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 312 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 352 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 352 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 320 KB Output is correct
20 Correct 1 ms 332 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 352 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 324 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 312 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 352 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 320 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 352 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 316 KB Output is correct
37 Correct 1 ms 320 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 588 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 320 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 1 ms 332 KB Output is correct
47 Correct 1 ms 328 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 1 ms 332 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 1 ms 460 KB Output is correct
52 Correct 1 ms 460 KB Output is correct
53 Correct 1 ms 716 KB Output is correct
54 Correct 1 ms 832 KB Output is correct
55 Correct 1 ms 588 KB Output is correct
56 Correct 1 ms 716 KB Output is correct
57 Correct 1 ms 716 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 352 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 324 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 312 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 352 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 320 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 352 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 316 KB Output is correct
37 Correct 1 ms 320 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 588 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 320 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 1 ms 332 KB Output is correct
47 Correct 1 ms 328 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 1 ms 332 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 1 ms 460 KB Output is correct
52 Correct 1 ms 460 KB Output is correct
53 Correct 1 ms 716 KB Output is correct
54 Correct 1 ms 832 KB Output is correct
55 Correct 1 ms 588 KB Output is correct
56 Correct 1 ms 716 KB Output is correct
57 Correct 1 ms 716 KB Output is correct
58 Correct 5 ms 1484 KB Output is correct
59 Correct 6 ms 972 KB Output is correct
60 Correct 9 ms 1996 KB Output is correct
61 Correct 49 ms 14332 KB Output is correct
62 Correct 146 ms 40408 KB Output is correct
63 Correct 14 ms 2532 KB Output is correct
64 Correct 69 ms 18880 KB Output is correct
65 Correct 1 ms 460 KB Output is correct
66 Correct 1 ms 588 KB Output is correct
67 Correct 1 ms 588 KB Output is correct
68 Correct 1 ms 588 KB Output is correct
69 Correct 1 ms 332 KB Output is correct
70 Correct 1 ms 332 KB Output is correct
71 Correct 19 ms 4684 KB Output is correct
72 Correct 2 ms 460 KB Output is correct
73 Correct 6 ms 1484 KB Output is correct
74 Correct 5 ms 972 KB Output is correct
75 Correct 10 ms 1996 KB Output is correct
76 Correct 63 ms 14316 KB Output is correct
77 Correct 181 ms 40516 KB Output is correct
78 Correct 15 ms 2560 KB Output is correct
79 Correct 88 ms 18968 KB Output is correct
80 Correct 11 ms 1740 KB Output is correct
81 Correct 29 ms 5260 KB Output is correct
82 Correct 183 ms 40520 KB Output is correct
83 Correct 1 ms 332 KB Output is correct
84 Correct 1 ms 332 KB Output is correct
85 Correct 16 ms 4792 KB Output is correct
86 Correct 2 ms 460 KB Output is correct
87 Correct 5 ms 1484 KB Output is correct
88 Correct 5 ms 972 KB Output is correct
89 Correct 9 ms 2124 KB Output is correct
90 Correct 54 ms 14404 KB Output is correct
91 Correct 160 ms 40696 KB Output is correct
92 Correct 15 ms 2740 KB Output is correct
93 Correct 81 ms 19232 KB Output is correct
94 Correct 2 ms 460 KB Output is correct
95 Correct 15 ms 4684 KB Output is correct
96 Correct 1 ms 332 KB Output is correct
97 Correct 1 ms 332 KB Output is correct
98 Correct 1 ms 332 KB Output is correct
99 Correct 1 ms 332 KB Output is correct