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Submission #290791

# Submission time Handle Problem Language Result Execution time Memory
290791 2020-09-04T12:59:13 Z PKhing Bigger segments (IZhO19_segments) C++14
100 / 100
 372 ms 43516 KB 
#include<bits/stdc++.h>
#define ll long long
#define ii pair<ll,ll>
using namespace std;
ll tab[500005];
ll qs[500005];
ll dp[500005];
ll dp2[500005];
int n;
int main(){
    scanf("%d",&n);
    for(int i=1;i<=n;i++){
        scanf("%lld",&tab[i]);
        qs[i]=tab[i]+qs[i-1];
    }
    set<ii,greater<ii>> s;
    s.insert(make_pair(0,0));
    for(int i=1;i<=n;i++){
        auto x = s.lower_bound(make_pair(qs[i],1e9));
        ll want = 2*qs[i]-qs[x->second];
        dp[i] = dp[x->second]+1;
        queue<ii> del;
        for(auto i:s){
            if(i.first>=want){
                del.emplace(i);
            }
            else break;
        }
        while(!del.empty()){
            s.erase(del.front());
            del.pop();
        }
        s.insert(make_pair(want,i));
    }
    printf("%lld",dp[n]);

}

Compilation message

segments.cpp: In function 'int main()':
segments.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   11 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
segments.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   13 |         scanf("%lld",&tab[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 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 0 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 1 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 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 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 0 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 1 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 416 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 384 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 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 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 0 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 1 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 416 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 384 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 2 ms 640 KB Output is correct
32 Correct 2 ms 512 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 2 ms 640 KB Output is correct
35 Correct 2 ms 640 KB Output is correct
36 Correct 2 ms 512 KB Output is correct
37 Correct 2 ms 512 KB Output is correct
38 Correct 1 ms 512 KB Output is correct
39 Correct 2 ms 512 KB Output is correct
40 Correct 2 ms 640 KB Output is correct
41 Correct 2 ms 640 KB Output is correct
42 Correct 3 ms 640 KB Output is correct
43 Correct 2 ms 640 KB Output is correct
44 Correct 2 ms 640 KB Output is correct
45 Correct 2 ms 640 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 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 0 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 1 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 416 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 384 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 2 ms 640 KB Output is correct
32 Correct 2 ms 512 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 2 ms 640 KB Output is correct
35 Correct 2 ms 640 KB Output is correct
36 Correct 2 ms 512 KB Output is correct
37 Correct 2 ms 512 KB Output is correct
38 Correct 1 ms 512 KB Output is correct
39 Correct 2 ms 512 KB Output is correct
40 Correct 2 ms 640 KB Output is correct
41 Correct 2 ms 640 KB Output is correct
42 Correct 3 ms 640 KB Output is correct
43 Correct 2 ms 640 KB Output is correct
44 Correct 2 ms 640 KB Output is correct
45 Correct 2 ms 640 KB Output is correct
46 Correct 50 ms 8952 KB Output is correct
47 Correct 56 ms 6968 KB Output is correct
48 Correct 56 ms 3224 KB Output is correct
49 Correct 66 ms 6264 KB Output is correct
50 Correct 61 ms 8952 KB Output is correct
51 Correct 67 ms 7672 KB Output is correct
52 Correct 32 ms 3960 KB Output is correct
53 Correct 19 ms 2560 KB Output is correct
54 Correct 60 ms 7288 KB Output is correct
55 Correct 63 ms 8312 KB Output is correct
56 Correct 57 ms 8952 KB Output is correct
57 Correct 60 ms 8952 KB Output is correct
58 Correct 56 ms 8296 KB Output is correct
59 Correct 58 ms 8968 KB Output is correct
60 Correct 59 ms 8976 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 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 0 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 1 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 416 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 384 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 2 ms 640 KB Output is correct
32 Correct 2 ms 512 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 2 ms 640 KB Output is correct
35 Correct 2 ms 640 KB Output is correct
36 Correct 2 ms 512 KB Output is correct
37 Correct 2 ms 512 KB Output is correct
38 Correct 1 ms 512 KB Output is correct
39 Correct 2 ms 512 KB Output is correct
40 Correct 2 ms 640 KB Output is correct
41 Correct 2 ms 640 KB Output is correct
42 Correct 3 ms 640 KB Output is correct
43 Correct 2 ms 640 KB Output is correct
44 Correct 2 ms 640 KB Output is correct
45 Correct 2 ms 640 KB Output is correct
46 Correct 50 ms 8952 KB Output is correct
47 Correct 56 ms 6968 KB Output is correct
48 Correct 56 ms 3224 KB Output is correct
49 Correct 66 ms 6264 KB Output is correct
50 Correct 61 ms 8952 KB Output is correct
51 Correct 67 ms 7672 KB Output is correct
52 Correct 32 ms 3960 KB Output is correct
53 Correct 19 ms 2560 KB Output is correct
54 Correct 60 ms 7288 KB Output is correct
55 Correct 63 ms 8312 KB Output is correct
56 Correct 57 ms 8952 KB Output is correct
57 Correct 60 ms 8952 KB Output is correct
58 Correct 56 ms 8296 KB Output is correct
59 Correct 58 ms 8968 KB Output is correct
60 Correct 59 ms 8976 KB Output is correct
61 Correct 268 ms 43356 KB Output is correct
62 Correct 277 ms 43388 KB Output is correct
63 Correct 309 ms 34852 KB Output is correct
64 Correct 371 ms 18424 KB Output is correct
65 Correct 333 ms 43384 KB Output is correct
66 Correct 372 ms 36872 KB Output is correct
67 Correct 296 ms 29560 KB Output is correct
68 Correct 138 ms 15096 KB Output is correct
69 Correct 333 ms 34936 KB Output is correct
70 Correct 340 ms 40952 KB Output is correct
71 Correct 310 ms 43384 KB Output is correct
72 Correct 325 ms 38008 KB Output is correct
73 Correct 322 ms 38800 KB Output is correct
74 Correct 315 ms 43444 KB Output is correct
75 Correct 328 ms 43516 KB Output is correct