oj.uz

Submission #1109478

# Submission time Handle Problem Language Result Execution time Memory
1109478 2024-11-06T19:58:42 Z imarn Bigger segments (IZhO19_segments) C++14
100 / 100
 159 ms 16664 KB 
#include<bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define plx pair<ll,int>
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(),x.end()
#define vi vector<int>
#define vvi vector<vi>
#define pp pair<ll,int>
#define ub(x,i) upper_bound(all(x),i)-x.begin()
using namespace std;
const int mxn=5e5+5;
ll t[4*mxn]{0};
void build(int i,int l,int r){
    if(l==r)return void(t[i]=1e16);
    int m=(l+r)>>1;
    build(2*i,l,m);build(2*i+1,m+1,r);
    t[i]=min(t[2*i],t[2*i+1]);
}
void upd(int i,int l,int r,int idx,ll v){
    if(r<idx||l>idx)return;
    if(l==r)return void(t[i]=v);
    int m=(l+r)>>1;
    upd(2*i,l,m,idx,v);upd(2*i+1,m+1,r,idx,v);
    t[i]=min(t[2*i],t[2*i+1]);
}
int qr(int i,int l,int r,ll tt){
    if(l==r)return l;int m=(l+r)>>1;
    if(t[2*i+1]<=tt)return qr(2*i+1,m+1,r,tt);
    return qr(2*i,l,m,tt);
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    int n;cin>>n;build(1,0,n);
    ll a[n+1]={0};for(int i=1;i<=n;i++)cin>>a[i],a[i]+=a[i-1];
    ll dp[n+1]={0};dp[0]=0;upd(1,0,n,0,0);
    for(int i=1;i<=n;i++){
        int r=qr(1,0,n,a[i]);
        dp[i] = dp[r]+1;
        upd(1,0,n,i,2*a[i]-a[r]);
    }cout<<dp[n];
}

Compilation message

segments.cpp: In function 'int qr(int, int, int, long long int)':
segments.cpp:31:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   31 |     if(l==r)return l;int m=(l+r)>>1;
      |     ^~
segments.cpp:31:22: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   31 |     if(l==r)return l;int m=(l+r)>>1;
      |                      ^~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 504 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 2 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 2 ms 336 KB Output is correct
38 Correct 1 ms 336 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 508 KB Output is correct
41 Correct 2 ms 336 KB Output is correct
42 Correct 1 ms 552 KB Output is correct
43 Correct 2 ms 500 KB Output is correct
44 Correct 1 ms 336 KB Output is correct
45 Correct 2 ms 336 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 504 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 2 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 2 ms 336 KB Output is correct
38 Correct 1 ms 336 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 508 KB Output is correct
41 Correct 2 ms 336 KB Output is correct
42 Correct 1 ms 552 KB Output is correct
43 Correct 2 ms 500 KB Output is correct
44 Correct 1 ms 336 KB Output is correct
45 Correct 2 ms 336 KB Output is correct
46 Correct 20 ms 4176 KB Output is correct
47 Correct 23 ms 4176 KB Output is correct
48 Correct 25 ms 4176 KB Output is correct
49 Correct 27 ms 4260 KB Output is correct
50 Correct 30 ms 4176 KB Output is correct
51 Correct 24 ms 4176 KB Output is correct
52 Correct 13 ms 3408 KB Output is correct
53 Correct 8 ms 3152 KB Output is correct
54 Correct 20 ms 4268 KB Output is correct
55 Correct 34 ms 4272 KB Output is correct
56 Correct 22 ms 4176 KB Output is correct
57 Correct 23 ms 4176 KB Output is correct
58 Correct 23 ms 4264 KB Output is correct
59 Correct 23 ms 4344 KB Output is correct
60 Correct 23 ms 4176 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 504 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 2 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 2 ms 336 KB Output is correct
38 Correct 1 ms 336 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 508 KB Output is correct
41 Correct 2 ms 336 KB Output is correct
42 Correct 1 ms 552 KB Output is correct
43 Correct 2 ms 500 KB Output is correct
44 Correct 1 ms 336 KB Output is correct
45 Correct 2 ms 336 KB Output is correct
46 Correct 20 ms 4176 KB Output is correct
47 Correct 23 ms 4176 KB Output is correct
48 Correct 25 ms 4176 KB Output is correct
49 Correct 27 ms 4260 KB Output is correct
50 Correct 30 ms 4176 KB Output is correct
51 Correct 24 ms 4176 KB Output is correct
52 Correct 13 ms 3408 KB Output is correct
53 Correct 8 ms 3152 KB Output is correct
54 Correct 20 ms 4268 KB Output is correct
55 Correct 34 ms 4272 KB Output is correct
56 Correct 22 ms 4176 KB Output is correct
57 Correct 23 ms 4176 KB Output is correct
58 Correct 23 ms 4264 KB Output is correct
59 Correct 23 ms 4344 KB Output is correct
60 Correct 23 ms 4176 KB Output is correct
61 Correct 101 ms 16464 KB Output is correct
62 Correct 102 ms 16476 KB Output is correct
63 Correct 106 ms 16592 KB Output is correct
64 Correct 138 ms 16596 KB Output is correct
65 Correct 128 ms 16664 KB Output is correct
66 Correct 123 ms 16464 KB Output is correct
67 Correct 101 ms 14920 KB Output is correct
68 Correct 58 ms 7760 KB Output is correct
69 Correct 109 ms 16596 KB Output is correct
70 Correct 129 ms 16600 KB Output is correct
71 Correct 118 ms 16520 KB Output is correct
72 Correct 110 ms 16492 KB Output is correct
73 Correct 118 ms 16528 KB Output is correct
74 Correct 138 ms 16468 KB Output is correct
75 Correct 159 ms 16456 KB Output is correct