oj.uz

Submission #370945

# Submission time Handle Problem Language Result Execution time Memory
370945 2021-02-25T06:27:37 Z kshitij_sodani Group Photo (JOI21_ho_t3) C++14
100 / 100
 781 ms 313324 KB 
//#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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