#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#define N 2000001
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
const ll INF = 1e18, MOD = 1e9 + 7, MOD2 = 1e6 + 3;
ll d_m[N], d[N], p[N], a[N], n;
int main () {
cin >> n;
for (int i = 0; i < n; i++) {
cin >> a[i];
p[i] = a[i] + (i ? p[i-1] : 0);
}
memset (d_m, -1, sizeof (d_m));
for (int i = 0; i < n; i++) {
if (i) d_m[i] = max (d_m[i], d_m[i-1]);
d[i] = (d_m[i] >= 0 ? d[d_m[i]] : 0) + 1;
int l = i + 1, r = n;
while (l < r) {
int mid = (l + r) / 2;
if (p[i] - p[d_m[i]] <= p[mid] - p[i]) r = mid;
else l = mid + 1;
}
d_m[l] = max (d_m[l], (ll)i);
}
cout << d[n-1];
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 2 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 3 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 4 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 5 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 6 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 7 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 8 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 9 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 10 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 11 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 12 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 13 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 14 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 15 |
Correct |
13 ms |
15992 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 2 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 3 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 4 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 5 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 6 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 7 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 8 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 9 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 10 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 11 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 12 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 13 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 14 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 15 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 16 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 17 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 18 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 19 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 20 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 21 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 22 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 23 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 24 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 25 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 26 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 27 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 28 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 29 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 30 |
Correct |
13 ms |
15992 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 2 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 3 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 4 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 5 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 6 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 7 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 8 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 9 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 10 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 11 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 12 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 13 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 14 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 15 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 16 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 17 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 18 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 19 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 20 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 21 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 22 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 23 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 24 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 25 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 26 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 27 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 28 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 29 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 30 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 31 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 32 |
Correct |
15 ms |
16120 KB |
Output is correct |
| 33 |
Correct |
15 ms |
16120 KB |
Output is correct |
| 34 |
Correct |
15 ms |
16120 KB |
Output is correct |
| 35 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 36 |
Correct |
15 ms |
16120 KB |
Output is correct |
| 37 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 38 |
Correct |
15 ms |
15992 KB |
Output is correct |
| 39 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 40 |
Correct |
15 ms |
16124 KB |
Output is correct |
| 41 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 42 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 43 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 44 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 45 |
Correct |
14 ms |
16120 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 2 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 3 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 4 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 5 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 6 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 7 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 8 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 9 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 10 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 11 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 12 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 13 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 14 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 15 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 16 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 17 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 18 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 19 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 20 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 21 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 22 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 23 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 24 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 25 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 26 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 27 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 28 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 29 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 30 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 31 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 32 |
Correct |
15 ms |
16120 KB |
Output is correct |
| 33 |
Correct |
15 ms |
16120 KB |
Output is correct |
| 34 |
Correct |
15 ms |
16120 KB |
Output is correct |
| 35 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 36 |
Correct |
15 ms |
16120 KB |
Output is correct |
| 37 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 38 |
Correct |
15 ms |
15992 KB |
Output is correct |
| 39 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 40 |
Correct |
15 ms |
16124 KB |
Output is correct |
| 41 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 42 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 43 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 44 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 45 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 46 |
Correct |
49 ms |
18680 KB |
Output is correct |
| 47 |
Correct |
56 ms |
18808 KB |
Output is correct |
| 48 |
Correct |
69 ms |
19192 KB |
Output is correct |
| 49 |
Correct |
72 ms |
19320 KB |
Output is correct |
| 50 |
Correct |
74 ms |
19320 KB |
Output is correct |
| 51 |
Correct |
77 ms |
19320 KB |
Output is correct |
| 52 |
Correct |
46 ms |
17656 KB |
Output is correct |
| 53 |
Correct |
33 ms |
17144 KB |
Output is correct |
| 54 |
Correct |
39 ms |
18552 KB |
Output is correct |
| 55 |
Correct |
76 ms |
19296 KB |
Output is correct |
| 56 |
Correct |
50 ms |
18808 KB |
Output is correct |
| 57 |
Correct |
49 ms |
18696 KB |
Output is correct |
| 58 |
Correct |
53 ms |
18808 KB |
Output is correct |
| 59 |
Correct |
57 ms |
19064 KB |
Output is correct |
| 60 |
Correct |
56 ms |
18936 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 2 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 3 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 4 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 5 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 6 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 7 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 8 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 9 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 10 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 11 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 12 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 13 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 14 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 15 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 16 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 17 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 18 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 19 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 20 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 21 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 22 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 23 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 24 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 25 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 26 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 27 |
Correct |
13 ms |
15996 KB |
Output is correct |
| 28 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 29 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 30 |
Correct |
13 ms |
15992 KB |
Output is correct |
| 31 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 32 |
Correct |
15 ms |
16120 KB |
Output is correct |
| 33 |
Correct |
15 ms |
16120 KB |
Output is correct |
| 34 |
Correct |
15 ms |
16120 KB |
Output is correct |
| 35 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 36 |
Correct |
15 ms |
16120 KB |
Output is correct |
| 37 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 38 |
Correct |
15 ms |
15992 KB |
Output is correct |
| 39 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 40 |
Correct |
15 ms |
16124 KB |
Output is correct |
| 41 |
Correct |
14 ms |
15992 KB |
Output is correct |
| 42 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 43 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 44 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 45 |
Correct |
14 ms |
16120 KB |
Output is correct |
| 46 |
Correct |
49 ms |
18680 KB |
Output is correct |
| 47 |
Correct |
56 ms |
18808 KB |
Output is correct |
| 48 |
Correct |
69 ms |
19192 KB |
Output is correct |
| 49 |
Correct |
72 ms |
19320 KB |
Output is correct |
| 50 |
Correct |
74 ms |
19320 KB |
Output is correct |
| 51 |
Correct |
77 ms |
19320 KB |
Output is correct |
| 52 |
Correct |
46 ms |
17656 KB |
Output is correct |
| 53 |
Correct |
33 ms |
17144 KB |
Output is correct |
| 54 |
Correct |
39 ms |
18552 KB |
Output is correct |
| 55 |
Correct |
76 ms |
19296 KB |
Output is correct |
| 56 |
Correct |
50 ms |
18808 KB |
Output is correct |
| 57 |
Correct |
49 ms |
18696 KB |
Output is correct |
| 58 |
Correct |
53 ms |
18808 KB |
Output is correct |
| 59 |
Correct |
57 ms |
19064 KB |
Output is correct |
| 60 |
Correct |
56 ms |
18936 KB |
Output is correct |
| 61 |
Correct |
192 ms |
29688 KB |
Output is correct |
| 62 |
Correct |
199 ms |
29696 KB |
Output is correct |
| 63 |
Correct |
217 ms |
30072 KB |
Output is correct |
| 64 |
Correct |
320 ms |
32360 KB |
Output is correct |
| 65 |
Correct |
332 ms |
32632 KB |
Output is correct |
| 66 |
Correct |
331 ms |
32504 KB |
Output is correct |
| 67 |
Correct |
267 ms |
29304 KB |
Output is correct |
| 68 |
Correct |
139 ms |
22648 KB |
Output is correct |
| 69 |
Correct |
140 ms |
28792 KB |
Output is correct |
| 70 |
Correct |
335 ms |
32632 KB |
Output is correct |
| 71 |
Correct |
179 ms |
29688 KB |
Output is correct |
| 72 |
Correct |
209 ms |
30048 KB |
Output is correct |
| 73 |
Correct |
232 ms |
30712 KB |
Output is correct |
| 74 |
Correct |
254 ms |
31096 KB |
Output is correct |
| 75 |
Correct |
250 ms |
31096 KB |
Output is correct |
