답안 #470056

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
470056	2021-09-02T19:17:40 Z	vincent97198	Group Photo (JOI21_ho_t3)	C++14	100 / 100	918 ms	584 KB

Main

#include <bits/stdc++.h>
#define int long long

using namespace std;

int calc[5005][5005];
int BIT[5005][2];

inline int lowbit(int x)
{
    return x&(-x);
}

inline void add(int pos,int val,int st)
{
    for(;pos<5005;pos+=lowbit(pos))
        BIT[pos][st]+=val;
}

inline int sum(int pos,int st)
{
    int ret=0;
    for(;pos>0;pos-=lowbit(pos))
        ret+=BIT[pos][st];
    return ret;
}

int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);   cout.tie(nullptr);

    int n;  cin >> n;
    vector<int> h(n+1),pos(n+1);

    for(int i=1;i<=n;++i){
        cin >> h[i];
        pos[h[i]]=i;
    }


    vector<int> dp(n+1,1e18);
    dp[0]=0;
    for(int i=1;i<=n;++i){
        int calc=0;
        for(int k=1;k<=i;++k) add(pos[k],1,0);
        for(int j=i-1;j>=0;--j){
            calc+=j+1-sum(pos[j+1],0);
            calc-=sum(pos[j+1],1);
            calc+=(i-j-1)-sum(pos[j+1],1);
            add(pos[j+1],-1,0);
            add(pos[j+1],1,1);
            dp[i]=min(dp[i],dp[j]+calc);
        }
        for(int k=0;k<5005;++k) BIT[k][1]=0;
    }
    cout << dp[n] << '\n';

    return 0;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 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

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 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	2 ms	332 KB	Output is correct
22	Correct	2 ms	332 KB	Output is correct
23	Correct	2 ms	332 KB	Output is correct
24	Correct	2 ms	332 KB	Output is correct
25	Correct	2 ms	332 KB	Output is correct
26	Correct	2 ms	332 KB	Output is correct
27	Correct	2 ms	332 KB	Output is correct
28	Correct	2 ms	404 KB	Output is correct
29	Correct	2 ms	332 KB	Output is correct
30	Correct	3 ms	332 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 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	2 ms	332 KB	Output is correct
22	Correct	2 ms	332 KB	Output is correct
23	Correct	2 ms	332 KB	Output is correct
24	Correct	2 ms	332 KB	Output is correct
25	Correct	2 ms	332 KB	Output is correct
26	Correct	2 ms	332 KB	Output is correct
27	Correct	2 ms	332 KB	Output is correct
28	Correct	2 ms	404 KB	Output is correct
29	Correct	2 ms	332 KB	Output is correct
30	Correct	3 ms	332 KB	Output is correct
31	Correct	29 ms	424 KB	Output is correct
32	Correct	30 ms	332 KB	Output is correct
33	Correct	26 ms	332 KB	Output is correct
34	Correct	25 ms	428 KB	Output is correct
35	Correct	25 ms	424 KB	Output is correct
36	Correct	25 ms	452 KB	Output is correct
37	Correct	25 ms	332 KB	Output is correct
38	Correct	25 ms	332 KB	Output is correct
39	Correct	26 ms	332 KB	Output is correct
40	Correct	25 ms	332 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 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	2 ms	332 KB	Output is correct
22	Correct	2 ms	332 KB	Output is correct
23	Correct	2 ms	332 KB	Output is correct
24	Correct	2 ms	332 KB	Output is correct
25	Correct	2 ms	332 KB	Output is correct
26	Correct	2 ms	332 KB	Output is correct
27	Correct	2 ms	332 KB	Output is correct
28	Correct	2 ms	404 KB	Output is correct
29	Correct	2 ms	332 KB	Output is correct
30	Correct	3 ms	332 KB	Output is correct
31	Correct	29 ms	424 KB	Output is correct
32	Correct	30 ms	332 KB	Output is correct
33	Correct	26 ms	332 KB	Output is correct
34	Correct	25 ms	428 KB	Output is correct
35	Correct	25 ms	424 KB	Output is correct
36	Correct	25 ms	452 KB	Output is correct
37	Correct	25 ms	332 KB	Output is correct
38	Correct	25 ms	332 KB	Output is correct
39	Correct	26 ms	332 KB	Output is correct
40	Correct	25 ms	332 KB	Output is correct
41	Correct	899 ms	528 KB	Output is correct
42	Correct	904 ms	580 KB	Output is correct
43	Correct	905 ms	580 KB	Output is correct
44	Correct	908 ms	580 KB	Output is correct
45	Correct	898 ms	520 KB	Output is correct
46	Correct	903 ms	452 KB	Output is correct
47	Correct	904 ms	580 KB	Output is correct
48	Correct	918 ms	460 KB	Output is correct
49	Correct	905 ms	532 KB	Output is correct
50	Correct	901 ms	516 KB	Output is correct
51	Correct	903 ms	580 KB	Output is correct
52	Correct	908 ms	520 KB	Output is correct
53	Correct	904 ms	532 KB	Output is correct
54	Correct	915 ms	520 KB	Output is correct
55	Correct	904 ms	584 KB	Output is correct

답안 #470056

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