#include <iostream>
#include <vector>
#include <algorithm>
#include <map>
#include <set>
#include <unordered_map>
#include <unordered_set>
#include <stack>
#include <queue>
#include <cmath>
#include <random>
#include <chrono>
using namespace std;
#define int long long
int log_ = 10;
int inf = 1000000000000000000;
int mod = 998244353;
signed main()
{
ios_base::sync_with_stdio();
cin.tie(0);
cout.tie(0);
int n;
cin >> n;
vector <int> a(n);
vector <int> pref(n);
vector <int> dp(n);
vector <int> col(n);
int pr = 0;
for (int i = 0; i < n; i++)
{
cin >> a[i];
pr += a[i];
pref[i] = pr;
dp[i] = pref[i];
col[i] = 1;
}
pref.push_back(inf);
vector <int> syf(n , -1);
vector <int> syf_col(n , 1);
int ans = 0;
for (int i = 0; i < n; i++)
{
int x = pref[i];
if (i > 0)
{
if (syf[i - 1] == syf[i])
syf_col[i] = max(syf_col[i - 1], syf_col[i]);
if (syf[i - 1] > syf[i])
{
syf[i] = syf[i - 1];
syf_col[i] = syf_col[i - 1];
}
}
if (syf[i] != -1)
dp[i] = pref[i] - pref[syf[i]];
else
dp[i] = pref[i];
col[i] = syf_col[i];
ans = max(ans, col[i]);
int ind = lower_bound(pref.begin(), pref.end(), x + dp[i]) - pref.begin();
if (ind == n)
continue;
syf[ind] = i;
syf_col[ind] = col[i]+1;
}
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
500 KB |
Output is correct |
11 |
Correct |
0 ms |
600 KB |
Output is correct |
12 |
Correct |
0 ms |
512 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
500 KB |
Output is correct |
11 |
Correct |
0 ms |
600 KB |
Output is correct |
12 |
Correct |
0 ms |
512 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
604 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
604 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
500 KB |
Output is correct |
11 |
Correct |
0 ms |
600 KB |
Output is correct |
12 |
Correct |
0 ms |
512 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
604 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
604 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
604 KB |
Output is correct |
34 |
Correct |
2 ms |
604 KB |
Output is correct |
35 |
Correct |
2 ms |
604 KB |
Output is correct |
36 |
Correct |
1 ms |
604 KB |
Output is correct |
37 |
Correct |
1 ms |
768 KB |
Output is correct |
38 |
Correct |
1 ms |
604 KB |
Output is correct |
39 |
Correct |
1 ms |
348 KB |
Output is correct |
40 |
Correct |
2 ms |
604 KB |
Output is correct |
41 |
Correct |
2 ms |
344 KB |
Output is correct |
42 |
Correct |
1 ms |
348 KB |
Output is correct |
43 |
Correct |
1 ms |
356 KB |
Output is correct |
44 |
Correct |
1 ms |
756 KB |
Output is correct |
45 |
Correct |
1 ms |
356 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
500 KB |
Output is correct |
11 |
Correct |
0 ms |
600 KB |
Output is correct |
12 |
Correct |
0 ms |
512 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
604 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
604 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
604 KB |
Output is correct |
34 |
Correct |
2 ms |
604 KB |
Output is correct |
35 |
Correct |
2 ms |
604 KB |
Output is correct |
36 |
Correct |
1 ms |
604 KB |
Output is correct |
37 |
Correct |
1 ms |
768 KB |
Output is correct |
38 |
Correct |
1 ms |
604 KB |
Output is correct |
39 |
Correct |
1 ms |
348 KB |
Output is correct |
40 |
Correct |
2 ms |
604 KB |
Output is correct |
41 |
Correct |
2 ms |
344 KB |
Output is correct |
42 |
Correct |
1 ms |
348 KB |
Output is correct |
43 |
Correct |
1 ms |
356 KB |
Output is correct |
44 |
Correct |
1 ms |
756 KB |
Output is correct |
45 |
Correct |
1 ms |
356 KB |
Output is correct |
46 |
Correct |
17 ms |
5460 KB |
Output is correct |
47 |
Correct |
28 ms |
5452 KB |
Output is correct |
48 |
Correct |
29 ms |
5964 KB |
Output is correct |
49 |
Correct |
34 ms |
5980 KB |
Output is correct |
50 |
Correct |
42 ms |
6564 KB |
Output is correct |
51 |
Correct |
33 ms |
6228 KB |
Output is correct |
52 |
Correct |
21 ms |
3016 KB |
Output is correct |
53 |
Correct |
11 ms |
1904 KB |
Output is correct |
54 |
Correct |
17 ms |
5196 KB |
Output is correct |
55 |
Correct |
46 ms |
6092 KB |
Output is correct |
56 |
Correct |
24 ms |
5468 KB |
Output is correct |
57 |
Correct |
29 ms |
5512 KB |
Output is correct |
58 |
Correct |
28 ms |
5700 KB |
Output is correct |
59 |
Correct |
29 ms |
5676 KB |
Output is correct |
60 |
Correct |
25 ms |
5700 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
500 KB |
Output is correct |
11 |
Correct |
0 ms |
600 KB |
Output is correct |
12 |
Correct |
0 ms |
512 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
604 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
604 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
604 KB |
Output is correct |
34 |
Correct |
2 ms |
604 KB |
Output is correct |
35 |
Correct |
2 ms |
604 KB |
Output is correct |
36 |
Correct |
1 ms |
604 KB |
Output is correct |
37 |
Correct |
1 ms |
768 KB |
Output is correct |
38 |
Correct |
1 ms |
604 KB |
Output is correct |
39 |
Correct |
1 ms |
348 KB |
Output is correct |
40 |
Correct |
2 ms |
604 KB |
Output is correct |
41 |
Correct |
2 ms |
344 KB |
Output is correct |
42 |
Correct |
1 ms |
348 KB |
Output is correct |
43 |
Correct |
1 ms |
356 KB |
Output is correct |
44 |
Correct |
1 ms |
756 KB |
Output is correct |
45 |
Correct |
1 ms |
356 KB |
Output is correct |
46 |
Correct |
17 ms |
5460 KB |
Output is correct |
47 |
Correct |
28 ms |
5452 KB |
Output is correct |
48 |
Correct |
29 ms |
5964 KB |
Output is correct |
49 |
Correct |
34 ms |
5980 KB |
Output is correct |
50 |
Correct |
42 ms |
6564 KB |
Output is correct |
51 |
Correct |
33 ms |
6228 KB |
Output is correct |
52 |
Correct |
21 ms |
3016 KB |
Output is correct |
53 |
Correct |
11 ms |
1904 KB |
Output is correct |
54 |
Correct |
17 ms |
5196 KB |
Output is correct |
55 |
Correct |
46 ms |
6092 KB |
Output is correct |
56 |
Correct |
24 ms |
5468 KB |
Output is correct |
57 |
Correct |
29 ms |
5512 KB |
Output is correct |
58 |
Correct |
28 ms |
5700 KB |
Output is correct |
59 |
Correct |
29 ms |
5676 KB |
Output is correct |
60 |
Correct |
25 ms |
5700 KB |
Output is correct |
61 |
Correct |
87 ms |
27480 KB |
Output is correct |
62 |
Correct |
96 ms |
26080 KB |
Output is correct |
63 |
Correct |
119 ms |
26228 KB |
Output is correct |
64 |
Correct |
162 ms |
28264 KB |
Output is correct |
65 |
Correct |
163 ms |
29516 KB |
Output is correct |
66 |
Correct |
162 ms |
28664 KB |
Output is correct |
67 |
Correct |
151 ms |
22548 KB |
Output is correct |
68 |
Correct |
67 ms |
12804 KB |
Output is correct |
69 |
Correct |
92 ms |
25196 KB |
Output is correct |
70 |
Correct |
187 ms |
29568 KB |
Output is correct |
71 |
Correct |
119 ms |
27404 KB |
Output is correct |
72 |
Correct |
104 ms |
26728 KB |
Output is correct |
73 |
Correct |
118 ms |
27932 KB |
Output is correct |
74 |
Correct |
134 ms |
27920 KB |
Output is correct |
75 |
Correct |
133 ms |
26908 KB |
Output is correct |