oj.uz

답안 #441573

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
441573 2021-07-05T11:48:58 Z leaked Bigger segments (IZhO19_segments) C++14
100 / 100
 139 ms 46240 KB 
#include <bits/stdc++.h>

#define vec vector
#define sz(x) (int)x.size()
#define m_p make_pair
#define f first
#define s second
#define pb push_back

using namespace std;

typedef long long ll;
typedef pair<ll,int> pli;
typedef pair<int,ll> pil;
typedef pair<int,int> pii;
auto rng=bind(uniform_int_distribution<int>(1,1e9),mt19937(time(0)));
template<class T> bool umax(T &a,const T &b){return (a<b?a=b,1:0);}
template<class T> bool umin(T &a,const T &b){return (a>b?a=b,1:0);}
const int N=5e5+1;
signed main(){
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    vec<int>a(n);
    vec<ll>pref(n);
    for(int i=0;i<n;i++){
        cin>>a[i];
        pref[i]=(i?pref[i-1]:0)+a[i];
    }
    vec<pil>dp(n,m_p(0,-2*n));
    /// pref[i]-pref[j]>=dp[j].s->pref[i]>=pref[j]+dp[j].f
    vec<vec<pii>>add(n+1,vec<pii>());
    pii mx={-2e9,-1};
    auto get=[&](int l,int r){
        return pref[r]-(l?pref[l-1]:0);
    };
    int ans=0;
    for(int i=0;i<n;i++){
        for(auto &z : add[i]) umax(mx,z);
        pii w=max(mx,m_p(0,0));
        w.f++;
//        cerr<<dp[i].f<<'
        dp[i]=m_p(w.f,get(w.s,i));
//        cerr<<dp[i].f<<' '<<dp[i].s<<endl;
        int l=i+1,r=n;
        while(l<r){
            int tm=(l+r)>>1;
            if(pref[tm]>=dp[i].s+pref[i]){
                r=tm;
            }
            else{
                l=tm+1;
            }
        }
        add[l].pb(m_p(dp[i].f,i+1));
        umax(ans,dp[i].f);
    }
    cout<<ans;
    return 0;
}

/*
10
2 1 2 2 1 1 3 2 5 5
*/

Subtask #1
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 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 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 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 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 2 ms 460 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 460 KB Output is correct
37 Correct 1 ms 588 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 460 KB Output is correct

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 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 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 2 ms 460 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 460 KB Output is correct
37 Correct 1 ms 588 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 17 ms 6504 KB Output is correct
47 Correct 24 ms 7600 KB Output is correct
48 Correct 26 ms 8276 KB Output is correct
49 Correct 23 ms 9284 KB Output is correct
50 Correct 25 ms 9432 KB Output is correct
51 Correct 28 ms 8396 KB Output is correct
52 Correct 15 ms 4336 KB Output is correct
53 Correct 9 ms 2764 KB Output is correct
54 Correct 24 ms 7504 KB Output is correct
55 Correct 27 ms 9028 KB Output is correct
56 Correct 21 ms 8952 KB Output is correct
57 Correct 19 ms 7884 KB Output is correct
58 Correct 21 ms 8292 KB Output is correct
59 Correct 21 ms 9036 KB Output is correct
60 Correct 22 ms 9072 KB Output is correct

Subtask #5
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 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 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 2 ms 460 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 460 KB Output is correct
37 Correct 1 ms 588 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 17 ms 6504 KB Output is correct
47 Correct 24 ms 7600 KB Output is correct
48 Correct 26 ms 8276 KB Output is correct
49 Correct 23 ms 9284 KB Output is correct
50 Correct 25 ms 9432 KB Output is correct
51 Correct 28 ms 8396 KB Output is correct
52 Correct 15 ms 4336 KB Output is correct
53 Correct 9 ms 2764 KB Output is correct
54 Correct 24 ms 7504 KB Output is correct
55 Correct 27 ms 9028 KB Output is correct
56 Correct 21 ms 8952 KB Output is correct
57 Correct 19 ms 7884 KB Output is correct
58 Correct 21 ms 8292 KB Output is correct
59 Correct 21 ms 9036 KB Output is correct
60 Correct 22 ms 9072 KB Output is correct
61 Correct 83 ms 31904 KB Output is correct
62 Correct 92 ms 33352 KB Output is correct
63 Correct 114 ms 37092 KB Output is correct
64 Correct 126 ms 41888 KB Output is correct
65 Correct 122 ms 46240 KB Output is correct
66 Correct 139 ms 40772 KB Output is correct
67 Correct 114 ms 32664 KB Output is correct
68 Correct 57 ms 16484 KB Output is correct
69 Correct 117 ms 36508 KB Output is correct
70 Correct 129 ms 44220 KB Output is correct
71 Correct 97 ms 43312 KB Output is correct
72 Correct 95 ms 38968 KB Output is correct
73 Correct 105 ms 42524 KB Output is correct
74 Correct 104 ms 44700 KB Output is correct
75 Correct 106 ms 44740 KB Output is correct