답안 #380386

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
380386	2021-03-21T09:27:58 Z	nvmdava	Group Photo (JOI21_ho_t3)	C++17	100 / 100	577 ms	67692 KB

Main

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ff first
#define ss second
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int N = 500'005;
const ll MOD = 1'000'000'007;
const ll INF = 0x3f3f3f3f3f3f3f3f;

int a[5005][5005];
int bit[5005];

int h[N];
int loc[N];

void update(int x){
    while(x < 5005){
        ++bit[x];
        x += x & -x;
    }
}

int get(int x){
    int s = 0;
    while(x){
        s += bit[x];
        x -= x & -x;
    }
    return s;
}

int dp[5005];

int 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>>h[i];
        loc[h[i]] = i;
    }

    for(int i = 1; i <= n; ++i){
        for(int j = 0; j < 5005; ++j)
            bit[j] = 0;
        for(int j = i; j <= n; ++j){
            a[i][j] = a[i][j - 1] + j - i - get(loc[j]);
            update(loc[j]);
        }
    }

    for(int i = 0; i <= n; ++i){
        dp[i] = a[1][n];
        for(int j = 0; j < i; ++j)
            dp[i] = min(dp[i], dp[j] - a[j + 1][i] + (i - j) * (i - j - 1) / 2 - a[j + 1][i]);
    }
    cout<<dp[n];
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	492 KB	Output is correct
13	Correct	1 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	492 KB	Output is correct
17	Correct	1 ms	512 KB	Output is correct
18	Correct	1 ms	492 KB	Output is correct
19	Correct	1 ms	492 KB	Output is correct
20	Correct	1 ms	492 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	492 KB	Output is correct
13	Correct	1 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	492 KB	Output is correct
17	Correct	1 ms	512 KB	Output is correct
18	Correct	1 ms	492 KB	Output is correct
19	Correct	1 ms	492 KB	Output is correct
20	Correct	1 ms	492 KB	Output is correct
21	Correct	3 ms	1260 KB	Output is correct
22	Correct	3 ms	1304 KB	Output is correct
23	Correct	3 ms	1260 KB	Output is correct
24	Correct	3 ms	1260 KB	Output is correct
25	Correct	3 ms	1260 KB	Output is correct
26	Correct	3 ms	1260 KB	Output is correct
27	Correct	4 ms	1260 KB	Output is correct
28	Correct	3 ms	1260 KB	Output is correct
29	Correct	3 ms	1260 KB	Output is correct
30	Correct	3 ms	1260 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	492 KB	Output is correct
13	Correct	1 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	492 KB	Output is correct
17	Correct	1 ms	512 KB	Output is correct
18	Correct	1 ms	492 KB	Output is correct
19	Correct	1 ms	492 KB	Output is correct
20	Correct	1 ms	492 KB	Output is correct
21	Correct	3 ms	1260 KB	Output is correct
22	Correct	3 ms	1304 KB	Output is correct
23	Correct	3 ms	1260 KB	Output is correct
24	Correct	3 ms	1260 KB	Output is correct
25	Correct	3 ms	1260 KB	Output is correct
26	Correct	3 ms	1260 KB	Output is correct
27	Correct	4 ms	1260 KB	Output is correct
28	Correct	3 ms	1260 KB	Output is correct
29	Correct	3 ms	1260 KB	Output is correct
30	Correct	3 ms	1260 KB	Output is correct
31	Correct	17 ms	4844 KB	Output is correct
32	Correct	16 ms	4844 KB	Output is correct
33	Correct	17 ms	4844 KB	Output is correct
34	Correct	17 ms	4844 KB	Output is correct
35	Correct	17 ms	4844 KB	Output is correct
36	Correct	18 ms	4844 KB	Output is correct
37	Correct	17 ms	4844 KB	Output is correct
38	Correct	16 ms	4844 KB	Output is correct
39	Correct	17 ms	4844 KB	Output is correct
40	Correct	17 ms	4844 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	492 KB	Output is correct
13	Correct	1 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	492 KB	Output is correct
17	Correct	1 ms	512 KB	Output is correct
18	Correct	1 ms	492 KB	Output is correct
19	Correct	1 ms	492 KB	Output is correct
20	Correct	1 ms	492 KB	Output is correct
21	Correct	3 ms	1260 KB	Output is correct
22	Correct	3 ms	1304 KB	Output is correct
23	Correct	3 ms	1260 KB	Output is correct
24	Correct	3 ms	1260 KB	Output is correct
25	Correct	3 ms	1260 KB	Output is correct
26	Correct	3 ms	1260 KB	Output is correct
27	Correct	4 ms	1260 KB	Output is correct
28	Correct	3 ms	1260 KB	Output is correct
29	Correct	3 ms	1260 KB	Output is correct
30	Correct	3 ms	1260 KB	Output is correct
31	Correct	17 ms	4844 KB	Output is correct
32	Correct	16 ms	4844 KB	Output is correct
33	Correct	17 ms	4844 KB	Output is correct
34	Correct	17 ms	4844 KB	Output is correct
35	Correct	17 ms	4844 KB	Output is correct
36	Correct	18 ms	4844 KB	Output is correct
37	Correct	17 ms	4844 KB	Output is correct
38	Correct	16 ms	4844 KB	Output is correct
39	Correct	17 ms	4844 KB	Output is correct
40	Correct	17 ms	4844 KB	Output is correct
41	Correct	564 ms	67448 KB	Output is correct
42	Correct	542 ms	67436 KB	Output is correct
43	Correct	542 ms	67436 KB	Output is correct
44	Correct	545 ms	67436 KB	Output is correct
45	Correct	545 ms	67564 KB	Output is correct
46	Correct	544 ms	67436 KB	Output is correct
47	Correct	557 ms	67564 KB	Output is correct
48	Correct	559 ms	67604 KB	Output is correct
49	Correct	551 ms	67476 KB	Output is correct
50	Correct	545 ms	67572 KB	Output is correct
51	Correct	539 ms	67652 KB	Output is correct
52	Correct	541 ms	67564 KB	Output is correct
53	Correct	577 ms	67692 KB	Output is correct
54	Correct	540 ms	67564 KB	Output is correct
55	Correct	547 ms	67424 KB	Output is correct

답안 #380386

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 7.0 / 7.0

Subtask #3 32.0 / 32.0

Subtask #4 20.0 / 20.0

Subtask #5 36.0 / 36.0

Subtask #1
5.0 / 5.0

Subtask #2
7.0 / 7.0

Subtask #3
32.0 / 32.0

Subtask #4
20.0 / 20.0

Subtask #5
36.0 / 36.0