#include <bits/stdc++.h>
using namespace std;
long long n, a [500005], b [500005];
int main (){
ios::sync_with_stdio (false);
cin.tie (0);
cin >> n;
for (int i = 1; i <= n; i ++){
cin >> a [i];
a [i] += a [i - 1];
}
for (int i = 1; i <= n; i ++){
b [i] = max (b [i - 1], b [i]);
long long x = a [i] - a [b [i]];
int idx = lower_bound (a, a + n + 1, a [i] + x) - a;
b [idx] = i;
}
int ans = 0;
for (int i = n; i > 0; i = b [i]) ans ++;
cout << ans << '\n';
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
1 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
0 ms |
376 KB |
Output is correct |
10 |
Correct |
3 ms |
376 KB |
Output is correct |
11 |
Correct |
3 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
1 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
0 ms |
376 KB |
Output is correct |
10 |
Correct |
3 ms |
376 KB |
Output is correct |
11 |
Correct |
3 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
504 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
424 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
1 ms |
376 KB |
Output is correct |
27 |
Correct |
1 ms |
376 KB |
Output is correct |
28 |
Correct |
12 ms |
380 KB |
Output is correct |
29 |
Correct |
1 ms |
376 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
1 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
0 ms |
376 KB |
Output is correct |
10 |
Correct |
3 ms |
376 KB |
Output is correct |
11 |
Correct |
3 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
504 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
424 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
1 ms |
376 KB |
Output is correct |
27 |
Correct |
1 ms |
376 KB |
Output is correct |
28 |
Correct |
12 ms |
380 KB |
Output is correct |
29 |
Correct |
1 ms |
376 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
504 KB |
Output is correct |
33 |
Correct |
3 ms |
372 KB |
Output is correct |
34 |
Correct |
1 ms |
504 KB |
Output is correct |
35 |
Correct |
3 ms |
376 KB |
Output is correct |
36 |
Correct |
3 ms |
376 KB |
Output is correct |
37 |
Correct |
3 ms |
376 KB |
Output is correct |
38 |
Correct |
1 ms |
376 KB |
Output is correct |
39 |
Correct |
2 ms |
376 KB |
Output is correct |
40 |
Correct |
3 ms |
376 KB |
Output is correct |
41 |
Correct |
2 ms |
376 KB |
Output is correct |
42 |
Correct |
2 ms |
400 KB |
Output is correct |
43 |
Correct |
3 ms |
376 KB |
Output is correct |
44 |
Correct |
3 ms |
504 KB |
Output is correct |
45 |
Correct |
3 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
1 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
0 ms |
376 KB |
Output is correct |
10 |
Correct |
3 ms |
376 KB |
Output is correct |
11 |
Correct |
3 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
504 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
424 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
1 ms |
376 KB |
Output is correct |
27 |
Correct |
1 ms |
376 KB |
Output is correct |
28 |
Correct |
12 ms |
380 KB |
Output is correct |
29 |
Correct |
1 ms |
376 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
504 KB |
Output is correct |
33 |
Correct |
3 ms |
372 KB |
Output is correct |
34 |
Correct |
1 ms |
504 KB |
Output is correct |
35 |
Correct |
3 ms |
376 KB |
Output is correct |
36 |
Correct |
3 ms |
376 KB |
Output is correct |
37 |
Correct |
3 ms |
376 KB |
Output is correct |
38 |
Correct |
1 ms |
376 KB |
Output is correct |
39 |
Correct |
2 ms |
376 KB |
Output is correct |
40 |
Correct |
3 ms |
376 KB |
Output is correct |
41 |
Correct |
2 ms |
376 KB |
Output is correct |
42 |
Correct |
2 ms |
400 KB |
Output is correct |
43 |
Correct |
3 ms |
376 KB |
Output is correct |
44 |
Correct |
3 ms |
504 KB |
Output is correct |
45 |
Correct |
3 ms |
376 KB |
Output is correct |
46 |
Correct |
14 ms |
2424 KB |
Output is correct |
47 |
Correct |
18 ms |
2396 KB |
Output is correct |
48 |
Correct |
23 ms |
2684 KB |
Output is correct |
49 |
Correct |
24 ms |
2808 KB |
Output is correct |
50 |
Correct |
25 ms |
2936 KB |
Output is correct |
51 |
Correct |
24 ms |
2936 KB |
Output is correct |
52 |
Correct |
13 ms |
1656 KB |
Output is correct |
53 |
Correct |
9 ms |
1144 KB |
Output is correct |
54 |
Correct |
17 ms |
2168 KB |
Output is correct |
55 |
Correct |
24 ms |
2936 KB |
Output is correct |
56 |
Correct |
20 ms |
2424 KB |
Output is correct |
57 |
Correct |
16 ms |
2296 KB |
Output is correct |
58 |
Correct |
18 ms |
2424 KB |
Output is correct |
59 |
Correct |
22 ms |
2552 KB |
Output is correct |
60 |
Correct |
20 ms |
2552 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
1 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
0 ms |
376 KB |
Output is correct |
10 |
Correct |
3 ms |
376 KB |
Output is correct |
11 |
Correct |
3 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
504 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
424 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
1 ms |
376 KB |
Output is correct |
27 |
Correct |
1 ms |
376 KB |
Output is correct |
28 |
Correct |
12 ms |
380 KB |
Output is correct |
29 |
Correct |
1 ms |
376 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
504 KB |
Output is correct |
33 |
Correct |
3 ms |
372 KB |
Output is correct |
34 |
Correct |
1 ms |
504 KB |
Output is correct |
35 |
Correct |
3 ms |
376 KB |
Output is correct |
36 |
Correct |
3 ms |
376 KB |
Output is correct |
37 |
Correct |
3 ms |
376 KB |
Output is correct |
38 |
Correct |
1 ms |
376 KB |
Output is correct |
39 |
Correct |
2 ms |
376 KB |
Output is correct |
40 |
Correct |
3 ms |
376 KB |
Output is correct |
41 |
Correct |
2 ms |
376 KB |
Output is correct |
42 |
Correct |
2 ms |
400 KB |
Output is correct |
43 |
Correct |
3 ms |
376 KB |
Output is correct |
44 |
Correct |
3 ms |
504 KB |
Output is correct |
45 |
Correct |
3 ms |
376 KB |
Output is correct |
46 |
Correct |
14 ms |
2424 KB |
Output is correct |
47 |
Correct |
18 ms |
2396 KB |
Output is correct |
48 |
Correct |
23 ms |
2684 KB |
Output is correct |
49 |
Correct |
24 ms |
2808 KB |
Output is correct |
50 |
Correct |
25 ms |
2936 KB |
Output is correct |
51 |
Correct |
24 ms |
2936 KB |
Output is correct |
52 |
Correct |
13 ms |
1656 KB |
Output is correct |
53 |
Correct |
9 ms |
1144 KB |
Output is correct |
54 |
Correct |
17 ms |
2168 KB |
Output is correct |
55 |
Correct |
24 ms |
2936 KB |
Output is correct |
56 |
Correct |
20 ms |
2424 KB |
Output is correct |
57 |
Correct |
16 ms |
2296 KB |
Output is correct |
58 |
Correct |
18 ms |
2424 KB |
Output is correct |
59 |
Correct |
22 ms |
2552 KB |
Output is correct |
60 |
Correct |
20 ms |
2552 KB |
Output is correct |
61 |
Correct |
67 ms |
10096 KB |
Output is correct |
62 |
Correct |
70 ms |
10180 KB |
Output is correct |
63 |
Correct |
88 ms |
10744 KB |
Output is correct |
64 |
Correct |
116 ms |
12740 KB |
Output is correct |
65 |
Correct |
117 ms |
13048 KB |
Output is correct |
66 |
Correct |
116 ms |
13048 KB |
Output is correct |
67 |
Correct |
93 ms |
10492 KB |
Output is correct |
68 |
Correct |
48 ms |
5368 KB |
Output is correct |
69 |
Correct |
78 ms |
9268 KB |
Output is correct |
70 |
Correct |
124 ms |
13176 KB |
Output is correct |
71 |
Correct |
91 ms |
10232 KB |
Output is correct |
72 |
Correct |
89 ms |
10488 KB |
Output is correct |
73 |
Correct |
96 ms |
11128 KB |
Output is correct |
74 |
Correct |
102 ms |
11512 KB |
Output is correct |
75 |
Correct |
105 ms |
11628 KB |
Output is correct |