#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
#define FOR(i,a) for (int i=0;i<(a);++i)
#define FORD(i,a) for (int i=(a)-1;i>=0;i--)
#define FORT(i,a,b) for (int i=(a);i<=(b);++i)
#define FORTD(i,b,a) for (int i=(b);i>=(a);--i)
#define trav(i,v) for (auto i : v)
#define all(v) v.begin(),v.end()
#define ad push_back
#define fr first
#define sc second
#define mpr(a,b) make_pair(a,b)
#define pir pair<int,int>
#define make_unique(v) v.erase(unique(all(v)),v.end())
#define fastio ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define srng mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
#define y1 EsiHancagorcRepa
const int N=1e6+6;
const ll MOD=998244353;
ll dp1[N],dp2[N],a[N],pr[N],dn[N];
int main() {
fastio;
#ifdef ALEXPC
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
#endif
int n;
cin>>n;
FORT(i,1,n){
cin>>a[i];
pr[i]=pr[i-1]+a[i];
}
ll tv=0;
FORT(i,1,n){
if (dn[i])tv=max(tv,dn[i]);
dp1[i]=dp1[tv]+1;
dp2[i]=pr[i]-pr[tv];
dn[lower_bound(pr,pr+n+1,pr[i]+dp2[i])-pr]=i;
}
cout<<dp1[n]<<endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
380 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
380 KB |
Output is correct |
5 |
Correct |
2 ms |
372 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
380 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 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 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
380 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
380 KB |
Output is correct |
5 |
Correct |
2 ms |
372 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
380 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 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 |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 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 |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
380 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
380 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
380 KB |
Output is correct |
5 |
Correct |
2 ms |
372 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
380 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 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 |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 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 |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
380 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
504 KB |
Output is correct |
32 |
Correct |
2 ms |
504 KB |
Output is correct |
33 |
Correct |
3 ms |
504 KB |
Output is correct |
34 |
Correct |
2 ms |
504 KB |
Output is correct |
35 |
Correct |
3 ms |
632 KB |
Output is correct |
36 |
Correct |
3 ms |
504 KB |
Output is correct |
37 |
Correct |
2 ms |
504 KB |
Output is correct |
38 |
Correct |
2 ms |
504 KB |
Output is correct |
39 |
Correct |
2 ms |
504 KB |
Output is correct |
40 |
Correct |
3 ms |
504 KB |
Output is correct |
41 |
Correct |
2 ms |
504 KB |
Output is correct |
42 |
Correct |
2 ms |
504 KB |
Output is correct |
43 |
Correct |
2 ms |
504 KB |
Output is correct |
44 |
Correct |
2 ms |
504 KB |
Output is correct |
45 |
Correct |
2 ms |
508 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
380 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
380 KB |
Output is correct |
5 |
Correct |
2 ms |
372 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
380 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 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 |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 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 |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
380 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
504 KB |
Output is correct |
32 |
Correct |
2 ms |
504 KB |
Output is correct |
33 |
Correct |
3 ms |
504 KB |
Output is correct |
34 |
Correct |
2 ms |
504 KB |
Output is correct |
35 |
Correct |
3 ms |
632 KB |
Output is correct |
36 |
Correct |
3 ms |
504 KB |
Output is correct |
37 |
Correct |
2 ms |
504 KB |
Output is correct |
38 |
Correct |
2 ms |
504 KB |
Output is correct |
39 |
Correct |
2 ms |
504 KB |
Output is correct |
40 |
Correct |
3 ms |
504 KB |
Output is correct |
41 |
Correct |
2 ms |
504 KB |
Output is correct |
42 |
Correct |
2 ms |
504 KB |
Output is correct |
43 |
Correct |
2 ms |
504 KB |
Output is correct |
44 |
Correct |
2 ms |
504 KB |
Output is correct |
45 |
Correct |
2 ms |
508 KB |
Output is correct |
46 |
Correct |
16 ms |
3960 KB |
Output is correct |
47 |
Correct |
19 ms |
4600 KB |
Output is correct |
48 |
Correct |
24 ms |
5112 KB |
Output is correct |
49 |
Correct |
25 ms |
5112 KB |
Output is correct |
50 |
Correct |
25 ms |
5304 KB |
Output is correct |
51 |
Correct |
26 ms |
5244 KB |
Output is correct |
52 |
Correct |
14 ms |
2808 KB |
Output is correct |
53 |
Correct |
9 ms |
1912 KB |
Output is correct |
54 |
Correct |
18 ms |
4472 KB |
Output is correct |
55 |
Correct |
26 ms |
5240 KB |
Output is correct |
56 |
Correct |
21 ms |
4736 KB |
Output is correct |
57 |
Correct |
18 ms |
4472 KB |
Output is correct |
58 |
Correct |
19 ms |
4600 KB |
Output is correct |
59 |
Correct |
22 ms |
4856 KB |
Output is correct |
60 |
Correct |
22 ms |
4856 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
380 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
380 KB |
Output is correct |
5 |
Correct |
2 ms |
372 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
380 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 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 |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 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 |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
380 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
504 KB |
Output is correct |
32 |
Correct |
2 ms |
504 KB |
Output is correct |
33 |
Correct |
3 ms |
504 KB |
Output is correct |
34 |
Correct |
2 ms |
504 KB |
Output is correct |
35 |
Correct |
3 ms |
632 KB |
Output is correct |
36 |
Correct |
3 ms |
504 KB |
Output is correct |
37 |
Correct |
2 ms |
504 KB |
Output is correct |
38 |
Correct |
2 ms |
504 KB |
Output is correct |
39 |
Correct |
2 ms |
504 KB |
Output is correct |
40 |
Correct |
3 ms |
504 KB |
Output is correct |
41 |
Correct |
2 ms |
504 KB |
Output is correct |
42 |
Correct |
2 ms |
504 KB |
Output is correct |
43 |
Correct |
2 ms |
504 KB |
Output is correct |
44 |
Correct |
2 ms |
504 KB |
Output is correct |
45 |
Correct |
2 ms |
508 KB |
Output is correct |
46 |
Correct |
16 ms |
3960 KB |
Output is correct |
47 |
Correct |
19 ms |
4600 KB |
Output is correct |
48 |
Correct |
24 ms |
5112 KB |
Output is correct |
49 |
Correct |
25 ms |
5112 KB |
Output is correct |
50 |
Correct |
25 ms |
5304 KB |
Output is correct |
51 |
Correct |
26 ms |
5244 KB |
Output is correct |
52 |
Correct |
14 ms |
2808 KB |
Output is correct |
53 |
Correct |
9 ms |
1912 KB |
Output is correct |
54 |
Correct |
18 ms |
4472 KB |
Output is correct |
55 |
Correct |
26 ms |
5240 KB |
Output is correct |
56 |
Correct |
21 ms |
4736 KB |
Output is correct |
57 |
Correct |
18 ms |
4472 KB |
Output is correct |
58 |
Correct |
19 ms |
4600 KB |
Output is correct |
59 |
Correct |
22 ms |
4856 KB |
Output is correct |
60 |
Correct |
22 ms |
4856 KB |
Output is correct |
61 |
Correct |
73 ms |
18040 KB |
Output is correct |
62 |
Correct |
75 ms |
19960 KB |
Output is correct |
63 |
Correct |
92 ms |
21112 KB |
Output is correct |
64 |
Correct |
123 ms |
24540 KB |
Output is correct |
65 |
Correct |
122 ms |
24824 KB |
Output is correct |
66 |
Correct |
123 ms |
24696 KB |
Output is correct |
67 |
Correct |
99 ms |
19916 KB |
Output is correct |
68 |
Correct |
50 ms |
10104 KB |
Output is correct |
69 |
Correct |
86 ms |
20984 KB |
Output is correct |
70 |
Correct |
124 ms |
24864 KB |
Output is correct |
71 |
Correct |
95 ms |
21904 KB |
Output is correct |
72 |
Correct |
90 ms |
20748 KB |
Output is correct |
73 |
Correct |
101 ms |
22264 KB |
Output is correct |
74 |
Correct |
108 ms |
23260 KB |
Output is correct |
75 |
Correct |
111 ms |
23288 KB |
Output is correct |