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답안 #424796

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
424796 2021-06-12T10:21:42 Z doowey Bigger segments (IZhO19_segments) C++14
100 / 100
 221 ms 36444 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

const int N = (int)5e5 + 10;
const ll inf = (ll)1e18;
ll A[N];
ll P[N];
ll dp[N];
ll sum[N];

ll val[N * 4 + 512];

int fin(int node, int cl, int cr, ll F){
    if(cl == cr){
        return cl;
    }
    int mid = (cl + cr) / 2;
    if(val[node * 2 + 1] <= F){
        return fin(node * 2 + 1, mid + 1, cr, F);
    }
    else{
        return fin(node * 2, cl, mid, F);
    }
}

void update(int node, int cl, int cr, int id, ll v){
    if(cl == cr){
        val[node] = v;
        return;
    }
    int mid = (cl + cr) / 2;
    if(mid >= id)
        update(node * 2, cl, mid, id, v);
    else
        update(node * 2 + 1, mid + 1, cr, id, v);
    val[node] = min(val[node * 2], val[node * 2 + 1]);
}


int main(){
    fastIO;
    //freopen("in.txt","r",stdin);
    int n;
    cin >> n;
    for(int i = 1; i <= N * 4 + 128; i ++ ){
        val[i] = inf;
    }
    for(int i = 1; i <= n; i ++ ){
        cin >> A[i];
        P[i] = A[i] + P[i - 1];
    }
    update(1, 0, n, 0, 0);
    int idx;
    for(int i = 1; i <= n; i ++ ){
        idx = fin(1, 0, n, P[i]);
        dp[i] = dp[idx] + 1;
        sum[i] = P[i] - P[idx];
        update(1, 0, n, i, sum[i]+P[i]);
    }
    cout << dp[n] << "\n";
    return 0;
}

Subtask #1
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 8 ms 15932 KB Output is correct
3 Correct 7 ms 15948 KB Output is correct
4 Correct 7 ms 15876 KB Output is correct
5 Correct 7 ms 16004 KB Output is correct
6 Correct 8 ms 15948 KB Output is correct
7 Correct 8 ms 15948 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 8 ms 15948 KB Output is correct
10 Correct 8 ms 15948 KB Output is correct
11 Correct 9 ms 15948 KB Output is correct
12 Correct 8 ms 15996 KB Output is correct
13 Correct 9 ms 15900 KB Output is correct
14 Correct 8 ms 15912 KB Output is correct
15 Correct 8 ms 15948 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 8 ms 15932 KB Output is correct
3 Correct 7 ms 15948 KB Output is correct
4 Correct 7 ms 15876 KB Output is correct
5 Correct 7 ms 16004 KB Output is correct
6 Correct 8 ms 15948 KB Output is correct
7 Correct 8 ms 15948 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 8 ms 15948 KB Output is correct
10 Correct 8 ms 15948 KB Output is correct
11 Correct 9 ms 15948 KB Output is correct
12 Correct 8 ms 15996 KB Output is correct
13 Correct 9 ms 15900 KB Output is correct
14 Correct 8 ms 15912 KB Output is correct
15 Correct 8 ms 15948 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 7 ms 15948 KB Output is correct
18 Correct 8 ms 15948 KB Output is correct
19 Correct 9 ms 15928 KB Output is correct
20 Correct 10 ms 15948 KB Output is correct
21 Correct 8 ms 15948 KB Output is correct
22 Correct 8 ms 15948 KB Output is correct
23 Correct 8 ms 15932 KB Output is correct
24 Correct 8 ms 15948 KB Output is correct
25 Correct 9 ms 15948 KB Output is correct
26 Correct 9 ms 16076 KB Output is correct
27 Correct 9 ms 15948 KB Output is correct
28 Correct 8 ms 15948 KB Output is correct
29 Correct 8 ms 15948 KB Output is correct
30 Correct 7 ms 15948 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 8 ms 15932 KB Output is correct
3 Correct 7 ms 15948 KB Output is correct
4 Correct 7 ms 15876 KB Output is correct
5 Correct 7 ms 16004 KB Output is correct
6 Correct 8 ms 15948 KB Output is correct
7 Correct 8 ms 15948 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 8 ms 15948 KB Output is correct
10 Correct 8 ms 15948 KB Output is correct
11 Correct 9 ms 15948 KB Output is correct
12 Correct 8 ms 15996 KB Output is correct
13 Correct 9 ms 15900 KB Output is correct
14 Correct 8 ms 15912 KB Output is correct
15 Correct 8 ms 15948 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 7 ms 15948 KB Output is correct
18 Correct 8 ms 15948 KB Output is correct
19 Correct 9 ms 15928 KB Output is correct
20 Correct 10 ms 15948 KB Output is correct
21 Correct 8 ms 15948 KB Output is correct
22 Correct 8 ms 15948 KB Output is correct
23 Correct 8 ms 15932 KB Output is correct
24 Correct 8 ms 15948 KB Output is correct
25 Correct 9 ms 15948 KB Output is correct
26 Correct 9 ms 16076 KB Output is correct
27 Correct 9 ms 15948 KB Output is correct
28 Correct 8 ms 15948 KB Output is correct
29 Correct 8 ms 15948 KB Output is correct
30 Correct 7 ms 15948 KB Output is correct
31 Correct 8 ms 16076 KB Output is correct
32 Correct 9 ms 16032 KB Output is correct
33 Correct 8 ms 16076 KB Output is correct
34 Correct 9 ms 16108 KB Output is correct
35 Correct 9 ms 16076 KB Output is correct
36 Correct 9 ms 16076 KB Output is correct
37 Correct 8 ms 16076 KB Output is correct
38 Correct 8 ms 16076 KB Output is correct
39 Correct 8 ms 16076 KB Output is correct
40 Correct 9 ms 16076 KB Output is correct
41 Correct 9 ms 16076 KB Output is correct
42 Correct 10 ms 16072 KB Output is correct
43 Correct 9 ms 15988 KB Output is correct
44 Correct 8 ms 16076 KB Output is correct
45 Correct 9 ms 16108 KB Output is correct

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 8 ms 15932 KB Output is correct
3 Correct 7 ms 15948 KB Output is correct
4 Correct 7 ms 15876 KB Output is correct
5 Correct 7 ms 16004 KB Output is correct
6 Correct 8 ms 15948 KB Output is correct
7 Correct 8 ms 15948 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 8 ms 15948 KB Output is correct
10 Correct 8 ms 15948 KB Output is correct
11 Correct 9 ms 15948 KB Output is correct
12 Correct 8 ms 15996 KB Output is correct
13 Correct 9 ms 15900 KB Output is correct
14 Correct 8 ms 15912 KB Output is correct
15 Correct 8 ms 15948 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 7 ms 15948 KB Output is correct
18 Correct 8 ms 15948 KB Output is correct
19 Correct 9 ms 15928 KB Output is correct
20 Correct 10 ms 15948 KB Output is correct
21 Correct 8 ms 15948 KB Output is correct
22 Correct 8 ms 15948 KB Output is correct
23 Correct 8 ms 15932 KB Output is correct
24 Correct 8 ms 15948 KB Output is correct
25 Correct 9 ms 15948 KB Output is correct
26 Correct 9 ms 16076 KB Output is correct
27 Correct 9 ms 15948 KB Output is correct
28 Correct 8 ms 15948 KB Output is correct
29 Correct 8 ms 15948 KB Output is correct
30 Correct 7 ms 15948 KB Output is correct
31 Correct 8 ms 16076 KB Output is correct
32 Correct 9 ms 16032 KB Output is correct
33 Correct 8 ms 16076 KB Output is correct
34 Correct 9 ms 16108 KB Output is correct
35 Correct 9 ms 16076 KB Output is correct
36 Correct 9 ms 16076 KB Output is correct
37 Correct 8 ms 16076 KB Output is correct
38 Correct 8 ms 16076 KB Output is correct
39 Correct 8 ms 16076 KB Output is correct
40 Correct 9 ms 16076 KB Output is correct
41 Correct 9 ms 16076 KB Output is correct
42 Correct 10 ms 16072 KB Output is correct
43 Correct 9 ms 15988 KB Output is correct
44 Correct 8 ms 16076 KB Output is correct
45 Correct 9 ms 16108 KB Output is correct
46 Correct 34 ms 19412 KB Output is correct
47 Correct 38 ms 19480 KB Output is correct
48 Correct 39 ms 19908 KB Output is correct
49 Correct 42 ms 19996 KB Output is correct
50 Correct 49 ms 20000 KB Output is correct
51 Correct 50 ms 20028 KB Output is correct
52 Correct 31 ms 18004 KB Output is correct
53 Correct 22 ms 17228 KB Output is correct
54 Correct 37 ms 19248 KB Output is correct
55 Correct 44 ms 20040 KB Output is correct
56 Correct 39 ms 19500 KB Output is correct
57 Correct 38 ms 19496 KB Output is correct
58 Correct 46 ms 19520 KB Output is correct
59 Correct 44 ms 19604 KB Output is correct
60 Correct 40 ms 19676 KB Output is correct

Subtask #5
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 8 ms 15932 KB Output is correct
3 Correct 7 ms 15948 KB Output is correct
4 Correct 7 ms 15876 KB Output is correct
5 Correct 7 ms 16004 KB Output is correct
6 Correct 8 ms 15948 KB Output is correct
7 Correct 8 ms 15948 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 8 ms 15948 KB Output is correct
10 Correct 8 ms 15948 KB Output is correct
11 Correct 9 ms 15948 KB Output is correct
12 Correct 8 ms 15996 KB Output is correct
13 Correct 9 ms 15900 KB Output is correct
14 Correct 8 ms 15912 KB Output is correct
15 Correct 8 ms 15948 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 7 ms 15948 KB Output is correct
18 Correct 8 ms 15948 KB Output is correct
19 Correct 9 ms 15928 KB Output is correct
20 Correct 10 ms 15948 KB Output is correct
21 Correct 8 ms 15948 KB Output is correct
22 Correct 8 ms 15948 KB Output is correct
23 Correct 8 ms 15932 KB Output is correct
24 Correct 8 ms 15948 KB Output is correct
25 Correct 9 ms 15948 KB Output is correct
26 Correct 9 ms 16076 KB Output is correct
27 Correct 9 ms 15948 KB Output is correct
28 Correct 8 ms 15948 KB Output is correct
29 Correct 8 ms 15948 KB Output is correct
30 Correct 7 ms 15948 KB Output is correct
31 Correct 8 ms 16076 KB Output is correct
32 Correct 9 ms 16032 KB Output is correct
33 Correct 8 ms 16076 KB Output is correct
34 Correct 9 ms 16108 KB Output is correct
35 Correct 9 ms 16076 KB Output is correct
36 Correct 9 ms 16076 KB Output is correct
37 Correct 8 ms 16076 KB Output is correct
38 Correct 8 ms 16076 KB Output is correct
39 Correct 8 ms 16076 KB Output is correct
40 Correct 9 ms 16076 KB Output is correct
41 Correct 9 ms 16076 KB Output is correct
42 Correct 10 ms 16072 KB Output is correct
43 Correct 9 ms 15988 KB Output is correct
44 Correct 8 ms 16076 KB Output is correct
45 Correct 9 ms 16108 KB Output is correct
46 Correct 34 ms 19412 KB Output is correct
47 Correct 38 ms 19480 KB Output is correct
48 Correct 39 ms 19908 KB Output is correct
49 Correct 42 ms 19996 KB Output is correct
50 Correct 49 ms 20000 KB Output is correct
51 Correct 50 ms 20028 KB Output is correct
52 Correct 31 ms 18004 KB Output is correct
53 Correct 22 ms 17228 KB Output is correct
54 Correct 37 ms 19248 KB Output is correct
55 Correct 44 ms 20040 KB Output is correct
56 Correct 39 ms 19500 KB Output is correct
57 Correct 38 ms 19496 KB Output is correct
58 Correct 46 ms 19520 KB Output is correct
59 Correct 44 ms 19604 KB Output is correct
60 Correct 40 ms 19676 KB Output is correct
61 Correct 155 ms 33532 KB Output is correct
62 Correct 168 ms 33528 KB Output is correct
63 Correct 169 ms 33916 KB Output is correct
64 Correct 190 ms 36164 KB Output is correct
65 Correct 221 ms 36444 KB Output is correct
66 Correct 207 ms 36404 KB Output is correct
67 Correct 190 ms 32272 KB Output is correct
68 Correct 79 ms 24132 KB Output is correct
69 Correct 166 ms 32608 KB Output is correct
70 Correct 208 ms 36408 KB Output is correct
71 Correct 173 ms 33476 KB Output is correct
72 Correct 169 ms 33856 KB Output is correct
73 Correct 176 ms 34484 KB Output is correct
74 Correct 181 ms 34884 KB Output is correct
75 Correct 180 ms 34884 KB Output is correct