oj.uz

Submission #290817

# Submission time Handle Problem Language Result Execution time Memory
290817 2020-09-04T13:18:08 Z PeppaPig Bigger segments (IZhO19_segments) C++14
100 / 100
 308 ms 41592 KB 
#include <bits/stdc++.h>

#define long long long
#define pii pair<long, long>
#define x first
#define y second

using namespace std;

const int N = 5e5 + 5;

int n, dp[N];
long A[N], pref[N];

int main() {
	scanf("%d", &n);
	for(int i = 1; i <= n; i++) {
		scanf("%lld", A + i);
		pref[i] = pref[i - 1] + A[i];
	}
	
	set<pii, greater<pii> > S;
	S.emplace(0, 0);
	for(int i = 1; i <= n; i++) {
		auto it = S.lower_bound(pii(pref[i], 1e9));

		dp[i] = dp[it->y] + 1;
		long val = 2ll * pref[i] - pref[it->y];
		auto now = S.begin();
		while(now != S.end()) {
			if(now->x >= val) now = S.erase(now);
			else break;
		}
		S.emplace(val, i);
	}
	printf("%d\n", dp[n]);

	return 0;

}

Compilation message

segments.cpp: In function 'int main()':
segments.cpp:16:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   16 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
segments.cpp:18:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   18 |   scanf("%lld", A + i);
      |   ~~~~~^~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 404 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 404 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 768 KB Output is correct
32 Correct 1 ms 512 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 2 ms 512 KB Output is correct
35 Correct 2 ms 640 KB Output is correct
36 Correct 3 ms 544 KB Output is correct
37 Correct 1 ms 512 KB Output is correct
38 Correct 2 ms 512 KB Output is correct
39 Correct 1 ms 512 KB Output is correct
40 Correct 2 ms 512 KB Output is correct
41 Correct 2 ms 640 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 1 ms 512 KB Output is correct
44 Correct 1 ms 640 KB Output is correct
45 Correct 2 ms 512 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 404 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 768 KB Output is correct
32 Correct 1 ms 512 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 2 ms 512 KB Output is correct
35 Correct 2 ms 640 KB Output is correct
36 Correct 3 ms 544 KB Output is correct
37 Correct 1 ms 512 KB Output is correct
38 Correct 2 ms 512 KB Output is correct
39 Correct 1 ms 512 KB Output is correct
40 Correct 2 ms 512 KB Output is correct
41 Correct 2 ms 640 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 1 ms 512 KB Output is correct
44 Correct 1 ms 640 KB Output is correct
45 Correct 2 ms 512 KB Output is correct
46 Correct 41 ms 8568 KB Output is correct
47 Correct 43 ms 6520 KB Output is correct
48 Correct 39 ms 2680 KB Output is correct
49 Correct 55 ms 5752 KB Output is correct
50 Correct 53 ms 8568 KB Output is correct
51 Correct 58 ms 7240 KB Output is correct
52 Correct 26 ms 3832 KB Output is correct
53 Correct 15 ms 2432 KB Output is correct
54 Correct 45 ms 6904 KB Output is correct
55 Correct 54 ms 7960 KB Output is correct
56 Correct 49 ms 8568 KB Output is correct
57 Correct 47 ms 8056 KB Output is correct
58 Correct 47 ms 7928 KB Output is correct
59 Correct 50 ms 8568 KB Output is correct
60 Correct 52 ms 8568 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 404 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 768 KB Output is correct
32 Correct 1 ms 512 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 2 ms 512 KB Output is correct
35 Correct 2 ms 640 KB Output is correct
36 Correct 3 ms 544 KB Output is correct
37 Correct 1 ms 512 KB Output is correct
38 Correct 2 ms 512 KB Output is correct
39 Correct 1 ms 512 KB Output is correct
40 Correct 2 ms 512 KB Output is correct
41 Correct 2 ms 640 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 1 ms 512 KB Output is correct
44 Correct 1 ms 640 KB Output is correct
45 Correct 2 ms 512 KB Output is correct
46 Correct 41 ms 8568 KB Output is correct
47 Correct 43 ms 6520 KB Output is correct
48 Correct 39 ms 2680 KB Output is correct
49 Correct 55 ms 5752 KB Output is correct
50 Correct 53 ms 8568 KB Output is correct
51 Correct 58 ms 7240 KB Output is correct
52 Correct 26 ms 3832 KB Output is correct
53 Correct 15 ms 2432 KB Output is correct
54 Correct 45 ms 6904 KB Output is correct
55 Correct 54 ms 7960 KB Output is correct
56 Correct 49 ms 8568 KB Output is correct
57 Correct 47 ms 8056 KB Output is correct
58 Correct 47 ms 7928 KB Output is correct
59 Correct 50 ms 8568 KB Output is correct
60 Correct 52 ms 8568 KB Output is correct
61 Correct 245 ms 41440 KB Output is correct
62 Correct 240 ms 41376 KB Output is correct
63 Correct 240 ms 33016 KB Output is correct
64 Correct 266 ms 16376 KB Output is correct
65 Correct 308 ms 41464 KB Output is correct
66 Correct 300 ms 35020 KB Output is correct
67 Correct 246 ms 28168 KB Output is correct
68 Correct 115 ms 14200 KB Output is correct
69 Correct 257 ms 32956 KB Output is correct
70 Correct 297 ms 39032 KB Output is correct
71 Correct 272 ms 41468 KB Output is correct
72 Correct 252 ms 35192 KB Output is correct
73 Correct 270 ms 36800 KB Output is correct
74 Correct 289 ms 41592 KB Output is correct
75 Correct 281 ms 41592 KB Output is correct