oj.uz

Submission #201389

# Submission time Handle Problem Language Result Execution time Memory
201389 2020-02-10T10:51:27 Z guangxuan Bigger segments (IZhO19_segments) C++14
100 / 100
 162 ms 15324 KB 
#include <bits/stdc++.h>

using namespace std;

int a[500009];
long long rs[500009];

int main(){
	int n;
	scanf("%d",&n);
	for(int i=0;i<n;i++){
		scanf("%d",&a[i]);
		rs[i+1]=rs[i]+a[i];
	}
	pair<int,int> res = {0,0};
	pair<int,long long> dp;
	priority_queue<pair<long long,pair<int,int> >,vector<pair<long long,pair<int,int> > >, greater< pair<long long,pair<int,int> > > > updates;
	for(int i=1;i<=n;i++){
		while(updates.size() && updates.top().first<=rs[i]){
			pair<int,int> cur = updates.top().second;
			updates.pop();
			res = max(res,cur);
		}
		dp = {res.first,rs[res.second] - rs[i]};
		dp.first++;
		updates.push({rs[i]-dp.second,{dp.first,i}});
		//cout << dp[i].first << ' ' << dp[i].second << '\n';
		// cout << res.first << ' ' << res.second.first << ' ' << res.second.second << '\n';
	}
	printf("%d", dp.first);
}

Compilation message

segments.cpp: In function 'int main()':
segments.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
segments.cpp:12:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
   ~~~~~^~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 376 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 5 ms 504 KB Output is correct
32 Correct 6 ms 376 KB Output is correct
33 Correct 6 ms 376 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct
37 Correct 6 ms 376 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 5 ms 376 KB Output is correct
40 Correct 6 ms 376 KB Output is correct
41 Correct 5 ms 376 KB Output is correct
42 Correct 5 ms 376 KB Output is correct
43 Correct 5 ms 376 KB Output is correct
44 Correct 5 ms 376 KB Output is correct
45 Correct 5 ms 376 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 5 ms 504 KB Output is correct
32 Correct 6 ms 376 KB Output is correct
33 Correct 6 ms 376 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct
37 Correct 6 ms 376 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 5 ms 376 KB Output is correct
40 Correct 6 ms 376 KB Output is correct
41 Correct 5 ms 376 KB Output is correct
42 Correct 5 ms 376 KB Output is correct
43 Correct 5 ms 376 KB Output is correct
44 Correct 5 ms 376 KB Output is correct
45 Correct 5 ms 376 KB Output is correct
46 Correct 20 ms 3820 KB Output is correct
47 Correct 29 ms 2168 KB Output is correct
48 Correct 30 ms 2040 KB Output is correct
49 Correct 27 ms 2424 KB Output is correct
50 Correct 23 ms 2044 KB Output is correct
51 Correct 34 ms 2040 KB Output is correct
52 Correct 19 ms 1016 KB Output is correct
53 Correct 13 ms 760 KB Output is correct
54 Correct 25 ms 1656 KB Output is correct
55 Correct 31 ms 2040 KB Output is correct
56 Correct 20 ms 1656 KB Output is correct
57 Correct 23 ms 2800 KB Output is correct
58 Correct 26 ms 2292 KB Output is correct
59 Correct 22 ms 1656 KB Output is correct
60 Correct 26 ms 1656 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 5 ms 504 KB Output is correct
32 Correct 6 ms 376 KB Output is correct
33 Correct 6 ms 376 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct
37 Correct 6 ms 376 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 5 ms 376 KB Output is correct
40 Correct 6 ms 376 KB Output is correct
41 Correct 5 ms 376 KB Output is correct
42 Correct 5 ms 376 KB Output is correct
43 Correct 5 ms 376 KB Output is correct
44 Correct 5 ms 376 KB Output is correct
45 Correct 5 ms 376 KB Output is correct
46 Correct 20 ms 3820 KB Output is correct
47 Correct 29 ms 2168 KB Output is correct
48 Correct 30 ms 2040 KB Output is correct
49 Correct 27 ms 2424 KB Output is correct
50 Correct 23 ms 2044 KB Output is correct
51 Correct 34 ms 2040 KB Output is correct
52 Correct 19 ms 1016 KB Output is correct
53 Correct 13 ms 760 KB Output is correct
54 Correct 25 ms 1656 KB Output is correct
55 Correct 31 ms 2040 KB Output is correct
56 Correct 20 ms 1656 KB Output is correct
57 Correct 23 ms 2800 KB Output is correct
58 Correct 26 ms 2292 KB Output is correct
59 Correct 22 ms 1656 KB Output is correct
60 Correct 26 ms 1656 KB Output is correct
61 Correct 78 ms 15324 KB Output is correct
62 Correct 97 ms 10628 KB Output is correct
63 Correct 123 ms 9192 KB Output is correct
64 Correct 122 ms 10872 KB Output is correct
65 Correct 102 ms 11128 KB Output is correct
66 Correct 162 ms 11004 KB Output is correct
67 Correct 125 ms 8952 KB Output is correct
68 Correct 64 ms 4600 KB Output is correct
69 Correct 110 ms 7288 KB Output is correct
70 Correct 134 ms 11128 KB Output is correct
71 Correct 80 ms 8184 KB Output is correct
72 Correct 103 ms 12772 KB Output is correct
73 Correct 96 ms 11372 KB Output is correct
74 Correct 86 ms 9592 KB Output is correct
75 Correct 91 ms 9592 KB Output is correct