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Submission #524706

# Submission time Handle Problem Language Result Execution time Memory
524706 2022-02-09T20:30:08 Z DragonO_o Bigger segments (IZhO19_segments) C++17
100 / 100
 70 ms 20832 KB 
#include <bits/stdc++.h>

using namespace std;

#define x first
#define y second
#define pb push_back
#define all(a) a.begin(),a.end()
#define int long long

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
typedef pair<int,int>pii;
typedef pair<ll,ll>pll;
typedef vector<ll>vll;
typedef vector<int>vi;
typedef vector<bool>vb;
typedef vector<vi>vvi;
typedef vector<vll>vvll;
typedef vector<pii>vpii;
typedef vector<pll>vpll;

const int N=5e5+55;

int a[N],b[N],dp[N],pref[N];

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin>>n;
    for(int i=1;i<=n;++i){
        cin>>a[i];
        pref[i]=pref[i-1]+a[i];
    }
    for(int i=1;i<=n;++i){
        b[i]=max(b[i],b[i-1]);
        dp[i]=dp[b[i]]+1;
        int l=i+1,r=n+1;
        while(l<r){
            int mid=(l+r)/2;
            if(pref[mid]-pref[i]<pref[i]-pref[b[i]]){
                l=mid+1;
            }
            else{
                r=mid;
            }
        }
        b[l]=i;
    }
    cout<<dp[n];
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 316 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 308 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 324 KB Output is correct
15 Correct 1 ms 332 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 316 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 308 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 324 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 316 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 308 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 324 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 1 ms 324 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 1 ms 456 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 456 KB Output is correct
37 Correct 1 ms 368 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 324 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 316 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 308 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 324 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 1 ms 324 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 1 ms 456 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 456 KB Output is correct
37 Correct 1 ms 368 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 324 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 10 ms 3780 KB Output is correct
47 Correct 12 ms 3908 KB Output is correct
48 Correct 13 ms 4224 KB Output is correct
49 Correct 13 ms 4372 KB Output is correct
50 Correct 12 ms 4420 KB Output is correct
51 Correct 13 ms 4316 KB Output is correct
52 Correct 7 ms 2336 KB Output is correct
53 Correct 4 ms 1532 KB Output is correct
54 Correct 9 ms 3660 KB Output is correct
55 Correct 13 ms 4420 KB Output is correct
56 Correct 9 ms 3840 KB Output is correct
57 Correct 9 ms 3792 KB Output is correct
58 Correct 10 ms 3916 KB Output is correct
59 Correct 10 ms 4044 KB Output is correct
60 Correct 11 ms 4032 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 316 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 308 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 324 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 1 ms 324 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 1 ms 456 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 456 KB Output is correct
37 Correct 1 ms 368 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 324 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 10 ms 3780 KB Output is correct
47 Correct 12 ms 3908 KB Output is correct
48 Correct 13 ms 4224 KB Output is correct
49 Correct 13 ms 4372 KB Output is correct
50 Correct 12 ms 4420 KB Output is correct
51 Correct 13 ms 4316 KB Output is correct
52 Correct 7 ms 2336 KB Output is correct
53 Correct 4 ms 1532 KB Output is correct
54 Correct 9 ms 3660 KB Output is correct
55 Correct 13 ms 4420 KB Output is correct
56 Correct 9 ms 3840 KB Output is correct
57 Correct 9 ms 3792 KB Output is correct
58 Correct 10 ms 3916 KB Output is correct
59 Correct 10 ms 4044 KB Output is correct
60 Correct 11 ms 4032 KB Output is correct
61 Correct 49 ms 17868 KB Output is correct
62 Correct 53 ms 17864 KB Output is correct
63 Correct 59 ms 18288 KB Output is correct
64 Correct 63 ms 20404 KB Output is correct
65 Correct 59 ms 20812 KB Output is correct
66 Correct 70 ms 20832 KB Output is correct
67 Correct 52 ms 16580 KB Output is correct
68 Correct 27 ms 8464 KB Output is correct
69 Correct 44 ms 16944 KB Output is correct
70 Correct 61 ms 20808 KB Output is correct
71 Correct 43 ms 17860 KB Output is correct
72 Correct 49 ms 18272 KB Output is correct
73 Correct 50 ms 18832 KB Output is correct
74 Correct 49 ms 19240 KB Output is correct
75 Correct 50 ms 19388 KB Output is correct