oj.uz

Submission #536071

# Submission time Handle Problem Language Result Execution time Memory
536071 2022-03-12T09:20:23 Z victor_gao Group Photo (JOI21_ho_t3) C++17
64 / 100
 5000 ms 716 KB 
//#pragma GCC optimize("Ofast,unroll-loops,O3")
//#pragma GCC target("avx,avx2,sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,fma,tune=native")
#include<bits/stdc++.h>
//#include<bits/extc++.h>
//#pragma pack(1)
#define fast ios::sync_with_stdio(0); cin.tie(0);
#define pii pair<int,int>
#define x first
#define y second
#define N 5015 
using namespace std;
//using namespace __gnu_pbds;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
//typedef tree<int, null_type,less_equal<int>, rb_tree_tag,tree_order_statistics_node_update> order_multiset;
//typedef tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update> order_set;
int dp[N],h[N],pos[N],d[N],n;
struct BIT{
	int arr[N];
	int lowbit(int x){
		return x&-x;
	}
	void reset(){
		for (int i=0;i<=n;i++) arr[i]=0;
	}
	void change(int p,int v){
		for (;p<=n;p+=lowbit(p)){
			arr[p]+=v;
		}
	}
	int query(int x){
		int ans=0;
		for (;x>0;x-=lowbit(x)){
			ans+=arr[x];
		}
		return ans;
	}
}bit,bit2;
signed main(){
	fast
	cin>>n;
	for (int i=1;i<=n;i++){
		cin>>h[i];
		pos[h[i]]=i;
		dp[i]=1e9;
	}
	for (int i=1;i<=n;i++) bit.change(i,1);
	for (int i=0;i<=n;i++){
		if (i){
			bit.change(1,1);
			bit.change(pos[i],-1);
		}
	//	for (int j=1;j<=n;j++) cout<<bit.query(j)<<' ';
	//	cout<<'\n';
		for (int j=i+1;j<=n;j++){
			int tans=0;
			vector<pii>bk;
			for (int k=j;k>i;k--){
				int np=bit.query(pos[k]);
				tans+=abs(np-(i+j-k+1));
				bit.change(1,1);
				bit.change(pos[k],-1);
				bk.push_back({1,-1});
				bk.push_back({pos[k],1});
			}
			dp[j]=min(dp[j],dp[i]+tans);
			for (auto k:bk){
				bit.change(k.x,k.y);
			}
		}
	//	bit2.reset();
	//	cout<<dp[i]<<"\n";
	}
	cout<<dp[n]<<'\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 68 ms 340 KB Output is correct
22 Correct 66 ms 340 KB Output is correct
23 Correct 70 ms 344 KB Output is correct
24 Correct 68 ms 344 KB Output is correct
25 Correct 68 ms 344 KB Output is correct
26 Correct 74 ms 344 KB Output is correct
27 Correct 69 ms 344 KB Output is correct
28 Correct 66 ms 348 KB Output is correct
29 Correct 71 ms 344 KB Output is correct
30 Correct 68 ms 344 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 68 ms 340 KB Output is correct
22 Correct 66 ms 340 KB Output is correct
23 Correct 70 ms 344 KB Output is correct
24 Correct 68 ms 344 KB Output is correct
25 Correct 68 ms 344 KB Output is correct
26 Correct 74 ms 344 KB Output is correct
27 Correct 69 ms 344 KB Output is correct
28 Correct 66 ms 348 KB Output is correct
29 Correct 71 ms 344 KB Output is correct
30 Correct 68 ms 344 KB Output is correct
31 Correct 4911 ms 372 KB Output is correct
32 Correct 4920 ms 388 KB Output is correct
33 Correct 4942 ms 380 KB Output is correct
34 Correct 4933 ms 384 KB Output is correct
35 Correct 4931 ms 380 KB Output is correct
36 Correct 4904 ms 376 KB Output is correct
37 Correct 4954 ms 380 KB Output is correct
38 Correct 4986 ms 404 KB Output is correct
39 Correct 4990 ms 504 KB Output is correct
40 Correct 4954 ms 376 KB Output is correct

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 68 ms 340 KB Output is correct
22 Correct 66 ms 340 KB Output is correct
23 Correct 70 ms 344 KB Output is correct
24 Correct 68 ms 344 KB Output is correct
25 Correct 68 ms 344 KB Output is correct
26 Correct 74 ms 344 KB Output is correct
27 Correct 69 ms 344 KB Output is correct
28 Correct 66 ms 348 KB Output is correct
29 Correct 71 ms 344 KB Output is correct
30 Correct 68 ms 344 KB Output is correct
31 Correct 4911 ms 372 KB Output is correct
32 Correct 4920 ms 388 KB Output is correct
33 Correct 4942 ms 380 KB Output is correct
34 Correct 4933 ms 384 KB Output is correct
35 Correct 4931 ms 380 KB Output is correct
36 Correct 4904 ms 376 KB Output is correct
37 Correct 4954 ms 380 KB Output is correct
38 Correct 4986 ms 404 KB Output is correct
39 Correct 4990 ms 504 KB Output is correct
40 Correct 4954 ms 376 KB Output is correct
41 Execution timed out 5051 ms 716 KB Time limit exceeded
42 Halted 0 ms 0 KB -