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Submission #486104

# Submission time Handle Problem Language Result Execution time Memory
486104 2021-11-10T14:43:00 Z Duy_e Rabbit Carrot (LMIO19_triusis) C++14
63 / 100
 1000 ms 3820 KB 
#include <bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define pii pair<long long, long long>
#define st first
#define nd second
#define file "test"
using namespace std;
const long long oo = 1e18;
const long long N = 2e5 + 5;

ll n, m, h[N], dp[N];

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    // #ifndef ONLINE_JUDGE
    //     freopen(file".inp","r",stdin); freopen(file".out","w",stdout);
    // #endif
    
    cin >> n >> m;
    for (int i = 1; i <= n; i ++)
        cin >> h[i];

    for (int i = 0; i <= n + 1; i ++)
        dp[i] = oo;

    dp[0] = 0;
    for (int i = 0; i <= n; i ++){
        for (int j = i + 1; j <= n + 1; j ++)
            if (h[j] <= h[i])
                dp[j] = min(dp[j], dp[i] + j - i - 1);
            else
                if (h[i] + (j - i)*m >= h[j])
                    dp[j] = min(dp[j], dp[i] + j - i - 1);
        // cout << dp[i] << ' ';
    }

    cout << dp[n + 1];
    

    return 0;
}    
/**  /\_/\
    (= ._.)
    / >0  \>1 
  ________________________
 / Brainstorming section /
/=======================/
---
===
with two fixed point i, j you are allowed to change every pole between i, j
-> could it be changed so that you can go from i->j
possible case: 
+ a[j] <= a[i]
+ a[j] - a[i] / m <= j - i + 1








===
**/
// Before submit: spot the visible bug by reading the code.

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 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 316 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 316 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 15 ms 332 KB Output is correct
21 Correct 16 ms 412 KB Output is correct
22 Correct 46 ms 332 KB Output is correct
23 Correct 42 ms 332 KB Output is correct
24 Correct 42 ms 460 KB Output is correct
25 Correct 23 ms 332 KB Output is correct
26 Correct 22 ms 332 KB Output is correct
27 Correct 32 ms 408 KB Output is correct
28 Correct 28 ms 424 KB Output is correct
29 Correct 19 ms 332 KB Output is correct
30 Correct 21 ms 332 KB Output is correct
31 Correct 17 ms 368 KB Output is correct
32 Correct 23 ms 424 KB Output is correct
33 Correct 23 ms 424 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 15 ms 332 KB Output is correct
5 Correct 16 ms 412 KB Output is correct
6 Correct 46 ms 332 KB Output is correct
7 Correct 42 ms 332 KB Output is correct
8 Correct 42 ms 460 KB Output is correct
9 Correct 23 ms 332 KB Output is correct
10 Correct 22 ms 332 KB Output is correct
11 Correct 32 ms 408 KB Output is correct
12 Correct 28 ms 424 KB Output is correct
13 Correct 19 ms 332 KB Output is correct
14 Correct 21 ms 332 KB Output is correct
15 Correct 17 ms 368 KB Output is correct
16 Correct 23 ms 424 KB Output is correct
17 Correct 23 ms 424 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 1 ms 316 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 316 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 39 ms 332 KB Output is correct
35 Correct 41 ms 332 KB Output is correct
36 Correct 43 ms 332 KB Output is correct
37 Correct 22 ms 436 KB Output is correct
38 Correct 32 ms 332 KB Output is correct
39 Correct 22 ms 332 KB Output is correct
40 Correct 17 ms 332 KB Output is correct
41 Correct 23 ms 332 KB Output is correct
42 Correct 23 ms 332 KB Output is correct
43 Correct 23 ms 332 KB Output is correct

Subtask #4
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 332 KB Output is correct
2 Correct 41 ms 332 KB Output is correct
3 Correct 43 ms 332 KB Output is correct
4 Correct 22 ms 436 KB Output is correct
5 Correct 32 ms 332 KB Output is correct
6 Correct 22 ms 332 KB Output is correct
7 Correct 17 ms 332 KB Output is correct
8 Correct 23 ms 332 KB Output is correct
9 Correct 23 ms 332 KB Output is correct
10 Correct 23 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 15 ms 332 KB Output is correct
15 Correct 16 ms 412 KB Output is correct
16 Correct 46 ms 332 KB Output is correct
17 Correct 42 ms 332 KB Output is correct
18 Correct 42 ms 460 KB Output is correct
19 Correct 23 ms 332 KB Output is correct
20 Correct 22 ms 332 KB Output is correct
21 Correct 32 ms 408 KB Output is correct
22 Correct 28 ms 424 KB Output is correct
23 Correct 19 ms 332 KB Output is correct
24 Correct 21 ms 332 KB Output is correct
25 Correct 17 ms 368 KB Output is correct
26 Correct 23 ms 424 KB Output is correct
27 Correct 23 ms 424 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 1 ms 316 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 0 ms 204 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 0 ms 316 KB Output is correct
40 Correct 0 ms 204 KB Output is correct
41 Correct 0 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Execution timed out 1082 ms 3820 KB Time limit exceeded
45 Halted 0 ms 0 KB -