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Submission #863036

# Submission time Handle Problem Language Result Execution time Memory
863036 2023-10-19T13:30:43 Z Hosen_ba Bigger segments (IZhO19_segments) C++17
100 / 100
 248 ms 24892 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N=5e5;
ll st[4*N+2];
const ll inf=1e18;
void build(int node,int l,int r){
    st[node]=inf;
    if(l==r)
        return;
    int mid=(l+r)/2;
    build(2*node,l,mid);
    build(2*node+1,mid+1,r);
}
void upd(int node,int l,int r,int idx,ll val){
    if(l==r){
        st[node]=val;
        return;
    }
    int mid=(l+r)/2;
    if(idx<=mid){
        upd(2*node,l,mid,idx,val);
    }else{
        upd(2*node+1,mid+1,r,idx,val);
    }
    st[node]=min(st[2*node],st[2*node+1]);
}
int findd(int node,int l,int r,ll val){
    if(l==r){
        return l;
    }
    int mid=(l+r)/2;
    if(st[2*node+1]<=val){
        return findd(2*node+1,mid+1,r,val);
    }else{
        return findd(2*node,l,mid,val);
    }
}
int main(){
    int n;
    cin>>n;
    ll a[n+2];
    a[0]=0;
    for(int i=1;i<=n;i++){
        cin>>a[i];
        a[i]+=a[i-1];
    }
    build(1,0,n);
    upd(1,0,n,0,0);
    pair<int,ll>dp[n+2];
    dp[0]={0,0};
    for(int i=1;i<=n;i++){
        int k=findd(1,0,n,a[i]);
        dp[i].first=dp[k].first+1;
        dp[i].second=a[i]-a[k];
        upd(1,0,n,i,a[i]+dp[i].second);
    }
    cout<<dp[n].first<<endl;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 440 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 448 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 440 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 448 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 376 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 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 0 ms 348 KB Output is correct
24 Correct 0 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 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 440 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 448 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 376 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 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 0 ms 348 KB Output is correct
24 Correct 0 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 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 452 KB Output is correct
32 Correct 2 ms 348 KB Output is correct
33 Correct 2 ms 348 KB Output is correct
34 Correct 1 ms 456 KB Output is correct
35 Correct 1 ms 604 KB Output is correct
36 Correct 2 ms 604 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 2 ms 600 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 456 KB Output is correct
45 Correct 1 ms 348 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 440 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 448 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 376 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 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 0 ms 348 KB Output is correct
24 Correct 0 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 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 452 KB Output is correct
32 Correct 2 ms 348 KB Output is correct
33 Correct 2 ms 348 KB Output is correct
34 Correct 1 ms 456 KB Output is correct
35 Correct 1 ms 604 KB Output is correct
36 Correct 2 ms 604 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 2 ms 600 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 456 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 29 ms 5208 KB Output is correct
47 Correct 31 ms 5268 KB Output is correct
48 Correct 38 ms 5688 KB Output is correct
49 Correct 47 ms 5804 KB Output is correct
50 Correct 46 ms 5768 KB Output is correct
51 Correct 51 ms 5852 KB Output is correct
52 Correct 21 ms 4188 KB Output is correct
53 Correct 13 ms 3420 KB Output is correct
54 Correct 26 ms 5016 KB Output is correct
55 Correct 43 ms 5980 KB Output is correct
56 Correct 33 ms 5304 KB Output is correct
57 Correct 30 ms 5424 KB Output is correct
58 Correct 31 ms 5208 KB Output is correct
59 Correct 35 ms 5572 KB Output is correct
60 Correct 39 ms 5396 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 440 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 448 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 376 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 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 0 ms 348 KB Output is correct
24 Correct 0 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 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 452 KB Output is correct
32 Correct 2 ms 348 KB Output is correct
33 Correct 2 ms 348 KB Output is correct
34 Correct 1 ms 456 KB Output is correct
35 Correct 1 ms 604 KB Output is correct
36 Correct 2 ms 604 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 2 ms 600 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 456 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 29 ms 5208 KB Output is correct
47 Correct 31 ms 5268 KB Output is correct
48 Correct 38 ms 5688 KB Output is correct
49 Correct 47 ms 5804 KB Output is correct
50 Correct 46 ms 5768 KB Output is correct
51 Correct 51 ms 5852 KB Output is correct
52 Correct 21 ms 4188 KB Output is correct
53 Correct 13 ms 3420 KB Output is correct
54 Correct 26 ms 5016 KB Output is correct
55 Correct 43 ms 5980 KB Output is correct
56 Correct 33 ms 5304 KB Output is correct
57 Correct 30 ms 5424 KB Output is correct
58 Correct 31 ms 5208 KB Output is correct
59 Correct 35 ms 5572 KB Output is correct
60 Correct 39 ms 5396 KB Output is correct
61 Correct 147 ms 22412 KB Output is correct
62 Correct 148 ms 22356 KB Output is correct
63 Correct 194 ms 22868 KB Output is correct
64 Correct 209 ms 24516 KB Output is correct
65 Correct 221 ms 24660 KB Output is correct
66 Correct 248 ms 24892 KB Output is correct
67 Correct 173 ms 21588 KB Output is correct
68 Correct 86 ms 11092 KB Output is correct
69 Correct 134 ms 21584 KB Output is correct
70 Correct 231 ms 24824 KB Output is correct
71 Correct 158 ms 22500 KB Output is correct
72 Correct 191 ms 22868 KB Output is correct
73 Correct 187 ms 23228 KB Output is correct
74 Correct 219 ms 23596 KB Output is correct
75 Correct 198 ms 23380 KB Output is correct