답안 #927841

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
927841	2024-02-15T11:45:55 Z	Unforgettablepl	Group Photo (JOI21_ho_t3)	C++17	100 / 100	363 ms	852 KB

Main

#include <bits/stdc++.h>
using namespace std;

#define int long long

const int INF = 1e15;

struct fenwick{
    int n;
    vector<int> tree;
    fenwick(int n):n(n),tree(n+1){}
    int get(int k){
        int ans = 0;
        while(k){
            ans+=tree[k];
            k-=k&-k;
        }
        return ans;
    }
    void add(int k){
        while(k<=n){
            tree[k]++;
            k+=k&-k;
        }
    }
};

int DP[5001];
int idx[5001];

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin >> n;
    for(int i=1;i<=n;i++){
        int a;cin>>a;
        idx[a]=i;
    }
    fenwick elements(n);
    for(int i=1;i<=n;i++){
        elements.add(idx[i]);
        int curr = 0;
        DP[i] = INF;
        fenwick bigger(n);
        for(int j=i;j;j--){
            curr+=elements.get(n);
            curr-=elements.get(idx[j]);
            curr-=bigger.get(idx[j]);
            bigger.add(idx[j]);
            DP[i] = min(DP[i],DP[j-1]+curr);
        }
    }
    cout << DP[n] << '\n';
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	600 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

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	600 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	1 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	464 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	460 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	600 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	600 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	1 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	464 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	460 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	600 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	344 KB	Output is correct
27	Correct	1 ms	600 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	600 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	1 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	464 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	460 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	600 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	344 KB	Output is correct
27	Correct	1 ms	600 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	5 ms	488 KB	Output is correct
32	Correct	5 ms	348 KB	Output is correct
33	Correct	5 ms	348 KB	Output is correct
34	Correct	4 ms	600 KB	Output is correct
35	Correct	4 ms	488 KB	Output is correct
36	Correct	4 ms	348 KB	Output is correct
37	Correct	4 ms	348 KB	Output is correct
38	Correct	5 ms	480 KB	Output is correct
39	Correct	4 ms	348 KB	Output is correct
40	Correct	4 ms	344 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	600 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	1 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	464 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	460 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	600 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	344 KB	Output is correct
27	Correct	1 ms	600 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	5 ms	488 KB	Output is correct
32	Correct	5 ms	348 KB	Output is correct
33	Correct	5 ms	348 KB	Output is correct
34	Correct	4 ms	600 KB	Output is correct
35	Correct	4 ms	488 KB	Output is correct
36	Correct	4 ms	348 KB	Output is correct
37	Correct	4 ms	348 KB	Output is correct
38	Correct	5 ms	480 KB	Output is correct
39	Correct	4 ms	348 KB	Output is correct
40	Correct	4 ms	344 KB	Output is correct
41	Correct	323 ms	800 KB	Output is correct
42	Correct	327 ms	616 KB	Output is correct
43	Correct	363 ms	600 KB	Output is correct
44	Correct	313 ms	616 KB	Output is correct
45	Correct	309 ms	608 KB	Output is correct
46	Correct	307 ms	612 KB	Output is correct
47	Correct	297 ms	600 KB	Output is correct
48	Correct	310 ms	848 KB	Output is correct
49	Correct	295 ms	604 KB	Output is correct
50	Correct	306 ms	844 KB	Output is correct
51	Correct	322 ms	604 KB	Output is correct
52	Correct	298 ms	604 KB	Output is correct
53	Correct	307 ms	608 KB	Output is correct
54	Correct	299 ms	616 KB	Output is correct
55	Correct	305 ms	852 KB	Output is correct

답안 #927841

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