oj.uz

Submission #996792

# Submission time Handle Problem Language Result Execution time Memory
996792 2024-06-11T08:22:46 Z daffuwu Bigger segments (IZhO19_segments) C++14
37 / 100
 554 ms 83492 KB 
#include <bits/stdc++.h>
using namespace std;
#define fr first
#define sc second
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

int dp[3069][3069], n, a, mx;
long long ps[500069];

int main() 
{
    int i, j, idx;
    scanf("%d", &n);
    for (i=1; i<=n; i++)
    {
        scanf("%d", &a);
        ps[i] = ps[i-1]+a;
    }
    ps[n+1] = 1e17;
    for (i=1; i<=n; i++)
    {
        mx = -1e9;
        for (idx=i+1, j=i-1; idx<=n+1; idx++)
        {
            for (; j>=0 && ps[idx]-ps[i]>=ps[i]-ps[j]; j--)
            {
                mx = max(mx, 1+dp[j][i]);
            }
            dp[i][idx] = mx;
            // printf("dp[%d][%d] = %d\n", i, idx, dp[i][idx]);
        }
        // printf("\n");
    }
    printf("%d\n", dp[n][n+1]);    
}

Compilation message

segments.cpp: In function 'int main()':
segments.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
segments.cpp:16:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |         scanf("%d", &a);
      |         ~~~~~^~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 1 ms 8540 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8540 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct
22 Correct 1 ms 8540 KB Output is correct
23 Correct 1 ms 6492 KB Output is correct
24 Correct 2 ms 8540 KB Output is correct
25 Correct 1 ms 8540 KB Output is correct
26 Correct 1 ms 8540 KB Output is correct
27 Correct 1 ms 8540 KB Output is correct
28 Correct 1 ms 8540 KB Output is correct
29 Correct 1 ms 8540 KB Output is correct
30 Correct 1 ms 8652 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 1 ms 8540 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8540 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct
22 Correct 1 ms 8540 KB Output is correct
23 Correct 1 ms 6492 KB Output is correct
24 Correct 2 ms 8540 KB Output is correct
25 Correct 1 ms 8540 KB Output is correct
26 Correct 1 ms 8540 KB Output is correct
27 Correct 1 ms 8540 KB Output is correct
28 Correct 1 ms 8540 KB Output is correct
29 Correct 1 ms 8540 KB Output is correct
30 Correct 1 ms 8652 KB Output is correct
31 Correct 18 ms 37640 KB Output is correct
32 Correct 17 ms 37456 KB Output is correct
33 Correct 23 ms 37464 KB Output is correct
34 Correct 17 ms 37468 KB Output is correct
35 Correct 18 ms 37644 KB Output is correct
36 Correct 35 ms 37460 KB Output is correct
37 Correct 19 ms 33104 KB Output is correct
38 Correct 12 ms 26972 KB Output is correct
39 Correct 31 ms 37468 KB Output is correct
40 Correct 15 ms 37468 KB Output is correct
41 Correct 16 ms 37468 KB Output is correct
42 Correct 16 ms 37464 KB Output is correct
43 Correct 17 ms 37468 KB Output is correct
44 Correct 19 ms 37464 KB Output is correct
45 Correct 20 ms 37468 KB Output is correct

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 1 ms 8540 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8540 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct
22 Correct 1 ms 8540 KB Output is correct
23 Correct 1 ms 6492 KB Output is correct
24 Correct 2 ms 8540 KB Output is correct
25 Correct 1 ms 8540 KB Output is correct
26 Correct 1 ms 8540 KB Output is correct
27 Correct 1 ms 8540 KB Output is correct
28 Correct 1 ms 8540 KB Output is correct
29 Correct 1 ms 8540 KB Output is correct
30 Correct 1 ms 8652 KB Output is correct
31 Correct 18 ms 37640 KB Output is correct
32 Correct 17 ms 37456 KB Output is correct
33 Correct 23 ms 37464 KB Output is correct
34 Correct 17 ms 37468 KB Output is correct
35 Correct 18 ms 37644 KB Output is correct
36 Correct 35 ms 37460 KB Output is correct
37 Correct 19 ms 33104 KB Output is correct
38 Correct 12 ms 26972 KB Output is correct
39 Correct 31 ms 37468 KB Output is correct
40 Correct 15 ms 37468 KB Output is correct
41 Correct 16 ms 37468 KB Output is correct
42 Correct 16 ms 37464 KB Output is correct
43 Correct 17 ms 37468 KB Output is correct
44 Correct 19 ms 37464 KB Output is correct
45 Correct 20 ms 37468 KB Output is correct
46 Runtime error 554 ms 83492 KB Execution killed with signal 11
47 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 1 ms 8540 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8540 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct
22 Correct 1 ms 8540 KB Output is correct
23 Correct 1 ms 6492 KB Output is correct
24 Correct 2 ms 8540 KB Output is correct
25 Correct 1 ms 8540 KB Output is correct
26 Correct 1 ms 8540 KB Output is correct
27 Correct 1 ms 8540 KB Output is correct
28 Correct 1 ms 8540 KB Output is correct
29 Correct 1 ms 8540 KB Output is correct
30 Correct 1 ms 8652 KB Output is correct
31 Correct 18 ms 37640 KB Output is correct
32 Correct 17 ms 37456 KB Output is correct
33 Correct 23 ms 37464 KB Output is correct
34 Correct 17 ms 37468 KB Output is correct
35 Correct 18 ms 37644 KB Output is correct
36 Correct 35 ms 37460 KB Output is correct
37 Correct 19 ms 33104 KB Output is correct
38 Correct 12 ms 26972 KB Output is correct
39 Correct 31 ms 37468 KB Output is correct
40 Correct 15 ms 37468 KB Output is correct
41 Correct 16 ms 37468 KB Output is correct
42 Correct 16 ms 37464 KB Output is correct
43 Correct 17 ms 37468 KB Output is correct
44 Correct 19 ms 37464 KB Output is correct
45 Correct 20 ms 37468 KB Output is correct
46 Runtime error 554 ms 83492 KB Execution killed with signal 11
47 Halted 0 ms 0 KB -