답안 #370945

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
370945	2021-02-25T06:27:37 Z	kshitij_sodani	Group Photo (JOI21_ho_t3)	C++14	100 / 100	781 ms	313324 KB

Main

//#pragma GCC optimize("Ofast,unroll-loops")
#include <bits/stdc++.h>
using namespace std;
typedef long long llo;
#define mp make_pair
#define pb push_back
#define a first 
#define b second
#define endl '\n'
llo n;
llo it[5001];
llo dp[5001];
llo ind[5001];
llo cost[5001][5001];
llo pre[5001][5001];
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cin>>n;
	for(llo i=0;i<n;i++){
		cin>>it[i];
		ind[it[i]]=i;
	}
	for(llo i=1;i<=n;i++){
		for(llo j=1;j<=n;j++){
			pre[i][j]=pre[i][j-1];
			if(ind[j]>ind[i]){
				pre[i][j]++;
			}
		}
	}
	/*for(int i=1;i<=3;i++){
		cout<<pre[3][i]<<",,";
	}
	cout<<endl;*/
	for(llo i=1;i<=n;i++){
		for(llo j=i;j<=n;j++){
			cost[i][j]=0;
			if(i<j){
				cost[i][j]+=cost[i][j-1];
			}
			cost[i][j]+=pre[j][i-1];
			if(i<j){
				cost[i][j]+=(j-i)-(pre[j][j-1]-pre[j][i-1]);
			}
		}
	}
	/*cout<<cost[1][1]<<":"<<cost[1][2]<<":"<<cost[2][3]<<endl;
	cout<<cost[1][3]<<":"<<cost[4][5]<<endl;*/
	for(llo i=0;i<=n;i++){
		dp[i]=1e9;
	}
	dp[0]=0;
	for(llo i=1;i<=n;i++){
		for(llo j=1;j<=i;j++){
			dp[i]=min(dp[i],dp[j-1]+cost[j][i]);
		}
		/*for(llo j=0;j<n;j++){
			for(llo k=0;k<n;k++){

			}
		}*/
	}

	cout<<dp[n]<<endl;





 
	return 0;
}

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	364 KB	Output is correct
4	Correct	1 ms	364 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	364 KB	Output is correct
4	Correct	1 ms	364 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	620 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	492 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	364 KB	Output is correct
4	Correct	1 ms	364 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	620 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	492 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	2 ms	2412 KB	Output is correct
22	Correct	2 ms	2412 KB	Output is correct
23	Correct	2 ms	2412 KB	Output is correct
24	Correct	3 ms	2412 KB	Output is correct
25	Correct	83 ms	2412 KB	Output is correct
26	Correct	2 ms	2412 KB	Output is correct
27	Correct	2 ms	2412 KB	Output is correct
28	Correct	5 ms	2412 KB	Output is correct
29	Correct	126 ms	2412 KB	Output is correct
30	Correct	4 ms	2412 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	364 KB	Output is correct
4	Correct	1 ms	364 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	620 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	492 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	2 ms	2412 KB	Output is correct
22	Correct	2 ms	2412 KB	Output is correct
23	Correct	2 ms	2412 KB	Output is correct
24	Correct	3 ms	2412 KB	Output is correct
25	Correct	83 ms	2412 KB	Output is correct
26	Correct	2 ms	2412 KB	Output is correct
27	Correct	2 ms	2412 KB	Output is correct
28	Correct	5 ms	2412 KB	Output is correct
29	Correct	126 ms	2412 KB	Output is correct
30	Correct	4 ms	2412 KB	Output is correct
31	Correct	17 ms	14444 KB	Output is correct
32	Correct	27 ms	14316 KB	Output is correct
33	Correct	27 ms	14316 KB	Output is correct
34	Correct	26 ms	14444 KB	Output is correct
35	Correct	17 ms	14444 KB	Output is correct
36	Correct	14 ms	14444 KB	Output is correct
37	Correct	14 ms	14444 KB	Output is correct
38	Correct	14 ms	14444 KB	Output is correct
39	Correct	14 ms	14444 KB	Output is correct
40	Correct	14 ms	14348 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	364 KB	Output is correct
4	Correct	1 ms	364 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	620 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	492 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	2 ms	2412 KB	Output is correct
22	Correct	2 ms	2412 KB	Output is correct
23	Correct	2 ms	2412 KB	Output is correct
24	Correct	3 ms	2412 KB	Output is correct
25	Correct	83 ms	2412 KB	Output is correct
26	Correct	2 ms	2412 KB	Output is correct
27	Correct	2 ms	2412 KB	Output is correct
28	Correct	5 ms	2412 KB	Output is correct
29	Correct	126 ms	2412 KB	Output is correct
30	Correct	4 ms	2412 KB	Output is correct
31	Correct	17 ms	14444 KB	Output is correct
32	Correct	27 ms	14316 KB	Output is correct
33	Correct	27 ms	14316 KB	Output is correct
34	Correct	26 ms	14444 KB	Output is correct
35	Correct	17 ms	14444 KB	Output is correct
36	Correct	14 ms	14444 KB	Output is correct
37	Correct	14 ms	14444 KB	Output is correct
38	Correct	14 ms	14444 KB	Output is correct
39	Correct	14 ms	14444 KB	Output is correct
40	Correct	14 ms	14348 KB	Output is correct
41	Correct	717 ms	313068 KB	Output is correct
42	Correct	715 ms	312976 KB	Output is correct
43	Correct	781 ms	313316 KB	Output is correct
44	Correct	713 ms	313152 KB	Output is correct
45	Correct	736 ms	313256 KB	Output is correct
46	Correct	727 ms	313228 KB	Output is correct
47	Correct	729 ms	313196 KB	Output is correct
48	Correct	730 ms	313324 KB	Output is correct
49	Correct	718 ms	313324 KB	Output is correct
50	Correct	736 ms	313224 KB	Output is correct
51	Correct	715 ms	313140 KB	Output is correct
52	Correct	748 ms	313324 KB	Output is correct
53	Correct	726 ms	313252 KB	Output is correct
54	Correct	773 ms	313280 KB	Output is correct
55	Correct	726 ms	313196 KB	Output is correct

답안 #370945

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