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Submission #199425

# Submission time Handle Problem Language Result Execution time Memory
199425 2020-02-01T11:41:58 Z semiauto Bigger segments (IZhO19_segments) C++14
100 / 100
 145 ms 18936 KB 
#include <bits/stdc++.h>
using namespace std;
long long sum[500002];
int dp[500002];
pair <long long,int> hey[500002];
int main() {
    int n;
    scanf("%d",&n);
    int s=1;
    for (int i=1;i<=n;i++) {
        int x;
        scanf("%d",&x);
        sum[i]=sum[i-1]+x;
        int pos=1;
        for (int j=18;j>=0;j--)
            if (pos+(1<<j)<=s && hey[pos+(1<<j)].first<=sum[i])
                pos+=(1<<j);
        dp[i]=dp[hey[pos].second]+1;
        for (;s>=0;s--)
            if (hey[s].first<2*sum[i]-sum[hey[pos].second])
                break;
        hey[++s]={2*sum[i]-sum[hey[pos].second],i};
    }
    printf("%d\n",dp[n]);
}

Compilation message

segments.cpp: In function 'int main()':
segments.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
segments.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&x);
         ~~~~~^~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 248 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 380 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 380 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 380 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 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 248 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 380 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 380 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 380 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 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 380 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 6 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 6 ms 376 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 248 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 380 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 380 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 380 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 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 380 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 6 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 6 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 6 ms 376 KB Output is correct
34 Correct 6 ms 376 KB Output is correct
35 Correct 6 ms 376 KB Output is correct
36 Correct 6 ms 376 KB Output is correct
37 Correct 5 ms 376 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 6 ms 376 KB Output is correct
40 Correct 5 ms 376 KB Output is correct
41 Correct 5 ms 376 KB Output is correct
42 Correct 6 ms 376 KB Output is correct
43 Correct 6 ms 376 KB Output is correct
44 Correct 6 ms 376 KB Output is correct
45 Correct 6 ms 376 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 248 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 380 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 380 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 380 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 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 380 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 6 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 6 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 6 ms 376 KB Output is correct
34 Correct 6 ms 376 KB Output is correct
35 Correct 6 ms 376 KB Output is correct
36 Correct 6 ms 376 KB Output is correct
37 Correct 5 ms 376 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 6 ms 376 KB Output is correct
40 Correct 5 ms 376 KB Output is correct
41 Correct 5 ms 376 KB Output is correct
42 Correct 6 ms 376 KB Output is correct
43 Correct 6 ms 376 KB Output is correct
44 Correct 6 ms 376 KB Output is correct
45 Correct 6 ms 376 KB Output is correct
46 Correct 26 ms 3064 KB Output is correct
47 Correct 26 ms 2552 KB Output is correct
48 Correct 36 ms 1656 KB Output is correct
49 Correct 34 ms 2296 KB Output is correct
50 Correct 29 ms 3064 KB Output is correct
51 Correct 33 ms 2680 KB Output is correct
52 Correct 18 ms 1528 KB Output is correct
53 Correct 13 ms 1016 KB Output is correct
54 Correct 24 ms 2680 KB Output is correct
55 Correct 30 ms 2936 KB Output is correct
56 Correct 28 ms 3064 KB Output is correct
57 Correct 27 ms 2936 KB Output is correct
58 Correct 26 ms 2808 KB Output is correct
59 Correct 27 ms 3064 KB Output is correct
60 Correct 26 ms 3064 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 248 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 380 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 380 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 380 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 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 380 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 6 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 6 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 6 ms 376 KB Output is correct
34 Correct 6 ms 376 KB Output is correct
35 Correct 6 ms 376 KB Output is correct
36 Correct 6 ms 376 KB Output is correct
37 Correct 5 ms 376 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 6 ms 376 KB Output is correct
40 Correct 5 ms 376 KB Output is correct
41 Correct 5 ms 376 KB Output is correct
42 Correct 6 ms 376 KB Output is correct
43 Correct 6 ms 376 KB Output is correct
44 Correct 6 ms 376 KB Output is correct
45 Correct 6 ms 376 KB Output is correct
46 Correct 26 ms 3064 KB Output is correct
47 Correct 26 ms 2552 KB Output is correct
48 Correct 36 ms 1656 KB Output is correct
49 Correct 34 ms 2296 KB Output is correct
50 Correct 29 ms 3064 KB Output is correct
51 Correct 33 ms 2680 KB Output is correct
52 Correct 18 ms 1528 KB Output is correct
53 Correct 13 ms 1016 KB Output is correct
54 Correct 24 ms 2680 KB Output is correct
55 Correct 30 ms 2936 KB Output is correct
56 Correct 28 ms 3064 KB Output is correct
57 Correct 27 ms 2936 KB Output is correct
58 Correct 26 ms 2808 KB Output is correct
59 Correct 27 ms 3064 KB Output is correct
60 Correct 26 ms 3064 KB Output is correct
61 Correct 128 ms 14072 KB Output is correct
62 Correct 125 ms 13944 KB Output is correct
63 Correct 133 ms 14200 KB Output is correct
64 Correct 131 ms 12284 KB Output is correct
65 Correct 130 ms 18936 KB Output is correct
66 Correct 145 ms 17272 KB Output is correct
67 Correct 119 ms 14140 KB Output is correct
68 Correct 62 ms 7160 KB Output is correct
69 Correct 99 ms 12920 KB Output is correct
70 Correct 134 ms 18424 KB Output is correct
71 Correct 114 ms 16200 KB Output is correct
72 Correct 118 ms 14840 KB Output is correct
73 Correct 121 ms 15736 KB Output is correct
74 Correct 120 ms 17276 KB Output is correct
75 Correct 119 ms 17400 KB Output is correct