oj.uz

Submission #493823

# Submission time Handle Problem Language Result Execution time Memory
493823 2021-12-13T05:01:20 Z PixelCat Group Photo (JOI21_ho_t3) C++14
100 / 100
 578 ms 117700 KB 
#include <bits/stdc++.h>
#define For(i,a,b) for(int i=a;i<=b;i++)
#define Forr(i,a,b) for(int i=a;i>=b;i--)
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define sz(x) ((int)x.size())
#define eb emplace_back
#define INF (1000000000000000ll);
#define int ll
using namespace std;
using ll=long long;
using pii=pair<int,int>;

#define LO(i) (i&(-i))
struct BIT{
	int n;
	int a[5010];
	void init(int _n){
		n=_n;
		memset(a,0,sizeof(a));
	}
	void add(int i,int x){
		while(i<=n){
			a[i]+=x;
			i+=LO(i);
		}
	}
	int ask(int i){
		int ans=0;
		while(i){
			ans+=a[i];
			i-=LO(i);
		}
		return ans;
	}
}bit;

int a[5010];
int pos[5010];
int no[5010];
int cost[5010][5010];
int dp[5010];

int32_t main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	// nachoneko sama & miku sama bless me >/////<
	int n; cin>>n;
	For(i,1,n){
		cin>>a[i];
		pos[a[i]]=i;
	}
	For(l,1,n){
		bit.init(n);
		int now=0;
		// int mi=l;

		int cnt=0;
		For(i,1,n){
			if(a[i]>=l){
				cnt++;
				no[a[i]]=cnt;
			}
		}

		For(r,l,n){
			now+=bit.ask(pos[r]);
			bit.add(pos[r],1);
			now+=no[r]-(r-l+1);
			cost[l][r]=now;
			// cout<<l<<" "<<r<<" "<<now<<"\n";
		}
	}
	For(i,1,n){
		dp[i]=cost[1][i];
		For(j,1,i-1) dp[i]=min(dp[i],dp[j]+cost[j+1][i]);
	}
	cout<<dp[n]<<"\n";
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 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 0 ms 448 KB Output is correct
10 Correct 1 ms 332 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 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 0 ms 448 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 0 ms 332 KB Output is correct
14 Correct 1 ms 452 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 460 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 452 KB Output is correct
20 Correct 1 ms 332 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 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 0 ms 448 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 0 ms 332 KB Output is correct
14 Correct 1 ms 452 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 460 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 452 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 1228 KB Output is correct
22 Correct 1 ms 1228 KB Output is correct
23 Correct 2 ms 1228 KB Output is correct
24 Correct 2 ms 1356 KB Output is correct
25 Correct 1 ms 1228 KB Output is correct
26 Correct 1 ms 1228 KB Output is correct
27 Correct 2 ms 1356 KB Output is correct
28 Correct 2 ms 1304 KB Output is correct
29 Correct 1 ms 1280 KB Output is correct
30 Correct 1 ms 1356 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 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 0 ms 448 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 0 ms 332 KB Output is correct
14 Correct 1 ms 452 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 460 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 452 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 1228 KB Output is correct
22 Correct 1 ms 1228 KB Output is correct
23 Correct 2 ms 1228 KB Output is correct
24 Correct 2 ms 1356 KB Output is correct
25 Correct 1 ms 1228 KB Output is correct
26 Correct 1 ms 1228 KB Output is correct
27 Correct 2 ms 1356 KB Output is correct
28 Correct 2 ms 1304 KB Output is correct
29 Correct 1 ms 1280 KB Output is correct
30 Correct 1 ms 1356 KB Output is correct
31 Correct 10 ms 6092 KB Output is correct
32 Correct 9 ms 6092 KB Output is correct
33 Correct 11 ms 6092 KB Output is correct
34 Correct 11 ms 6044 KB Output is correct
35 Correct 10 ms 6092 KB Output is correct
36 Correct 11 ms 6156 KB Output is correct
37 Correct 11 ms 6080 KB Output is correct
38 Correct 10 ms 6092 KB Output is correct
39 Correct 12 ms 6072 KB Output is correct
40 Correct 11 ms 6092 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 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 0 ms 448 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 0 ms 332 KB Output is correct
14 Correct 1 ms 452 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 460 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 452 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 1228 KB Output is correct
22 Correct 1 ms 1228 KB Output is correct
23 Correct 2 ms 1228 KB Output is correct
24 Correct 2 ms 1356 KB Output is correct
25 Correct 1 ms 1228 KB Output is correct
26 Correct 1 ms 1228 KB Output is correct
27 Correct 2 ms 1356 KB Output is correct
28 Correct 2 ms 1304 KB Output is correct
29 Correct 1 ms 1280 KB Output is correct
30 Correct 1 ms 1356 KB Output is correct
31 Correct 10 ms 6092 KB Output is correct
32 Correct 9 ms 6092 KB Output is correct
33 Correct 11 ms 6092 KB Output is correct
34 Correct 11 ms 6044 KB Output is correct
35 Correct 10 ms 6092 KB Output is correct
36 Correct 11 ms 6156 KB Output is correct
37 Correct 11 ms 6080 KB Output is correct
38 Correct 10 ms 6092 KB Output is correct
39 Correct 12 ms 6072 KB Output is correct
40 Correct 11 ms 6092 KB Output is correct
41 Correct 526 ms 117528 KB Output is correct
42 Correct 524 ms 117416 KB Output is correct
43 Correct 498 ms 117540 KB Output is correct
44 Correct 525 ms 117560 KB Output is correct
45 Correct 517 ms 117416 KB Output is correct
46 Correct 530 ms 117652 KB Output is correct
47 Correct 519 ms 117576 KB Output is correct
48 Correct 532 ms 117556 KB Output is correct
49 Correct 518 ms 117576 KB Output is correct
50 Correct 578 ms 117568 KB Output is correct
51 Correct 511 ms 117680 KB Output is correct
52 Correct 552 ms 117528 KB Output is correct
53 Correct 536 ms 117528 KB Output is correct
54 Correct 537 ms 117468 KB Output is correct
55 Correct 508 ms 117700 KB Output is correct