oj.uz

Submission #1116995

# Submission time Handle Problem Language Result Execution time Memory
1116995 2024-11-22T17:59:49 Z whoknow K blocks (IZhO14_blocks) C++17
100 / 100
 130 ms 3540 KB 
#include <bits/stdc++.h>
#define ll long long
#define int long long
#define F first
#define S second
#define MAXN 100005
#define ii pair<int,int>
#define bit(i,j) ((i>>j)&1)
#define sz(i) (int)i.size()
#define endl '\n'
using namespace std;
const ll INF = 1e18;
int n, K;
int a[MAXN];
namespace sub1
{
ll dp[2][MAXN];
void solve()
{
    for(int i = 1; i <= n; i++)
        dp[0][i] = max(dp[0][i - 1], a[i]);
    for(int j = 2; j <= K; j++)
    {
        stack<ii>st;
        for(int i = j; i <= n; i++)
        {
            int tmp = dp[0][i - 1];
            while(sz(st) && st.top().S < a[i])
            {
                tmp = min(tmp, st.top().F);
                st.pop();
            }
            if(sz(st) == 0 || tmp + a[i] <= st.top().F + st.top().S)
                st.push({tmp,a[i]});
            dp[1][i] = st.top().F + st.top().S;
        }
        for(int i = 1; i <= n; i++)
            dp[0][i] = dp[1][i];
    }
    cout << dp[0][n];
}
}
main()
{
    if(fopen("TEST.inp", "r"))
    {
        freopen("TEST.inp", "r", stdin);
        freopen("TEST.out", "w", stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> K;
    for(int i = 1; i <= n; i++)
        cin >> a[i];
    sub1::solve();
}

Compilation message

blocks.cpp:43:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   43 | main()
      | ^~~~
blocks.cpp: In function 'int main()':
blocks.cpp:47:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |         freopen("TEST.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
blocks.cpp:48:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |         freopen("TEST.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2552 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2552 KB Output is correct
8 Correct 2 ms 2552 KB Output is correct
9 Correct 1 ms 2384 KB Output is correct
10 Correct 2 ms 2384 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 1 ms 2384 KB Output is correct
13 Correct 1 ms 2384 KB Output is correct
14 Correct 1 ms 2384 KB Output is correct
15 Correct 1 ms 2384 KB Output is correct
16 Correct 1 ms 2384 KB Output is correct
17 Correct 1 ms 2384 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2552 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2384 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 2 ms 2384 KB Output is correct
12 Correct 1 ms 2384 KB Output is correct
13 Correct 1 ms 2384 KB Output is correct
14 Correct 1 ms 2384 KB Output is correct
15 Correct 1 ms 2384 KB Output is correct
16 Correct 1 ms 2384 KB Output is correct
17 Correct 1 ms 2384 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct
19 Correct 1 ms 2384 KB Output is correct
20 Correct 1 ms 2384 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2552 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2552 KB Output is correct
8 Correct 2 ms 2552 KB Output is correct
9 Correct 1 ms 2384 KB Output is correct
10 Correct 2 ms 2384 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 1 ms 2384 KB Output is correct
13 Correct 1 ms 2384 KB Output is correct
14 Correct 1 ms 2384 KB Output is correct
15 Correct 1 ms 2384 KB Output is correct
16 Correct 1 ms 2384 KB Output is correct
17 Correct 1 ms 2384 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct
19 Correct 1 ms 2384 KB Output is correct
20 Correct 1 ms 2552 KB Output is correct
21 Correct 1 ms 2384 KB Output is correct
22 Correct 1 ms 2384 KB Output is correct
23 Correct 1 ms 2384 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 1 ms 2384 KB Output is correct
26 Correct 1 ms 2384 KB Output is correct
27 Correct 1 ms 2384 KB Output is correct
28 Correct 1 ms 2384 KB Output is correct
29 Correct 2 ms 2384 KB Output is correct
30 Correct 1 ms 2384 KB Output is correct
31 Correct 1 ms 2384 KB Output is correct
32 Correct 1 ms 2384 KB Output is correct
33 Correct 1 ms 2384 KB Output is correct
34 Correct 1 ms 2384 KB Output is correct
35 Correct 1 ms 2384 KB Output is correct
36 Correct 1 ms 2384 KB Output is correct
37 Correct 1 ms 2384 KB Output is correct
38 Correct 1 ms 2384 KB Output is correct
39 Correct 1 ms 2384 KB Output is correct
40 Correct 1 ms 2384 KB Output is correct
41 Correct 1 ms 2384 KB Output is correct
42 Correct 1 ms 2384 KB Output is correct
43 Correct 2 ms 2384 KB Output is correct
44 Correct 2 ms 2384 KB Output is correct
45 Correct 2 ms 2384 KB Output is correct
46 Correct 1 ms 2384 KB Output is correct
47 Correct 1 ms 2384 KB Output is correct
48 Correct 1 ms 2384 KB Output is correct
49 Correct 2 ms 2556 KB Output is correct
50 Correct 1 ms 2384 KB Output is correct
51 Correct 1 ms 2384 KB Output is correct
52 Correct 1 ms 2384 KB Output is correct
53 Correct 1 ms 2384 KB Output is correct
54 Correct 1 ms 2384 KB Output is correct
55 Correct 1 ms 2384 KB Output is correct
56 Correct 1 ms 2384 KB Output is correct
57 Correct 1 ms 2384 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2552 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2552 KB Output is correct
8 Correct 2 ms 2552 KB Output is correct
9 Correct 1 ms 2384 KB Output is correct
10 Correct 2 ms 2384 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 1 ms 2384 KB Output is correct
13 Correct 1 ms 2384 KB Output is correct
14 Correct 1 ms 2384 KB Output is correct
15 Correct 1 ms 2384 KB Output is correct
16 Correct 1 ms 2384 KB Output is correct
17 Correct 1 ms 2384 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct
19 Correct 1 ms 2384 KB Output is correct
20 Correct 1 ms 2552 KB Output is correct
21 Correct 1 ms 2384 KB Output is correct
22 Correct 1 ms 2384 KB Output is correct
23 Correct 1 ms 2384 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 1 ms 2384 KB Output is correct
26 Correct 1 ms 2384 KB Output is correct
27 Correct 1 ms 2384 KB Output is correct
28 Correct 1 ms 2384 KB Output is correct
29 Correct 2 ms 2384 KB Output is correct
30 Correct 1 ms 2384 KB Output is correct
31 Correct 1 ms 2384 KB Output is correct
32 Correct 1 ms 2384 KB Output is correct
33 Correct 1 ms 2384 KB Output is correct
34 Correct 1 ms 2384 KB Output is correct
35 Correct 1 ms 2384 KB Output is correct
36 Correct 1 ms 2384 KB Output is correct
37 Correct 1 ms 2384 KB Output is correct
38 Correct 1 ms 2384 KB Output is correct
39 Correct 1 ms 2384 KB Output is correct
40 Correct 1 ms 2384 KB Output is correct
41 Correct 1 ms 2384 KB Output is correct
42 Correct 1 ms 2384 KB Output is correct
43 Correct 2 ms 2384 KB Output is correct
44 Correct 2 ms 2384 KB Output is correct
45 Correct 2 ms 2384 KB Output is correct
46 Correct 1 ms 2384 KB Output is correct
47 Correct 1 ms 2384 KB Output is correct
48 Correct 1 ms 2384 KB Output is correct
49 Correct 2 ms 2556 KB Output is correct
50 Correct 1 ms 2384 KB Output is correct
51 Correct 1 ms 2384 KB Output is correct
52 Correct 1 ms 2384 KB Output is correct
53 Correct 1 ms 2384 KB Output is correct
54 Correct 1 ms 2384 KB Output is correct
55 Correct 1 ms 2384 KB Output is correct
56 Correct 1 ms 2384 KB Output is correct
57 Correct 1 ms 2384 KB Output is correct
58 Correct 3 ms 2384 KB Output is correct
59 Correct 3 ms 2520 KB Output is correct
60 Correct 7 ms 2640 KB Output is correct
61 Correct 25 ms 2640 KB Output is correct
62 Correct 80 ms 2640 KB Output is correct
63 Correct 8 ms 2640 KB Output is correct
64 Correct 36 ms 2808 KB Output is correct
65 Correct 1 ms 2384 KB Output is correct
66 Correct 1 ms 2384 KB Output is correct
67 Correct 1 ms 2384 KB Output is correct
68 Correct 1 ms 2384 KB Output is correct
69 Correct 1 ms 2384 KB Output is correct
70 Correct 1 ms 2552 KB Output is correct
71 Correct 8 ms 2384 KB Output is correct
72 Correct 2 ms 2384 KB Output is correct
73 Correct 3 ms 2384 KB Output is correct
74 Correct 3 ms 2640 KB Output is correct
75 Correct 5 ms 2640 KB Output is correct
76 Correct 32 ms 2640 KB Output is correct
77 Correct 68 ms 2640 KB Output is correct
78 Correct 8 ms 2640 KB Output is correct
79 Correct 34 ms 2812 KB Output is correct
80 Correct 6 ms 2776 KB Output is correct
81 Correct 12 ms 2640 KB Output is correct
82 Correct 71 ms 2640 KB Output is correct
83 Correct 1 ms 2384 KB Output is correct
84 Correct 1 ms 2384 KB Output is correct
85 Correct 14 ms 2640 KB Output is correct
86 Correct 2 ms 2640 KB Output is correct
87 Correct 4 ms 2640 KB Output is correct
88 Correct 3 ms 2640 KB Output is correct
89 Correct 7 ms 2984 KB Output is correct
90 Correct 42 ms 3040 KB Output is correct
91 Correct 130 ms 3536 KB Output is correct
92 Correct 10 ms 3408 KB Output is correct
93 Correct 61 ms 3540 KB Output is correct
94 Correct 2 ms 2384 KB Output is correct
95 Correct 6 ms 2604 KB Output is correct
96 Correct 1 ms 2384 KB Output is correct
97 Correct 1 ms 2384 KB Output is correct
98 Correct 1 ms 2384 KB Output is correct
99 Correct 1 ms 2384 KB Output is correct