oj.uz

Submission #536065

# Submission time Handle Problem Language Result Execution time Memory
536065 2022-03-12T09:08:10 Z victor_gao Group Photo (JOI21_ho_t3) C++17
44 / 100
 5000 ms 452 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 int long long
#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]=1e18;
	}
	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 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 328 KB Output is correct
8 Correct 0 ms 328 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 328 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 328 KB Output is correct
8 Correct 0 ms 328 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 328 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 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 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 328 KB Output is correct
8 Correct 0 ms 328 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 328 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 70 ms 340 KB Output is correct
22 Correct 70 ms 352 KB Output is correct
23 Correct 78 ms 452 KB Output is correct
24 Correct 87 ms 340 KB Output is correct
25 Correct 85 ms 360 KB Output is correct
26 Correct 71 ms 340 KB Output is correct
27 Correct 70 ms 348 KB Output is correct
28 Correct 74 ms 356 KB Output is correct
29 Correct 89 ms 340 KB Output is correct
30 Correct 76 ms 340 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 328 KB Output is correct
8 Correct 0 ms 328 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 328 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 70 ms 340 KB Output is correct
22 Correct 70 ms 352 KB Output is correct
23 Correct 78 ms 452 KB Output is correct
24 Correct 87 ms 340 KB Output is correct
25 Correct 85 ms 360 KB Output is correct
26 Correct 71 ms 340 KB Output is correct
27 Correct 70 ms 348 KB Output is correct
28 Correct 74 ms 356 KB Output is correct
29 Correct 89 ms 340 KB Output is correct
30 Correct 76 ms 340 KB Output is correct
31 Correct 4925 ms 424 KB Output is correct
32 Correct 4876 ms 424 KB Output is correct
33 Correct 4999 ms 420 KB Output is correct
34 Correct 4902 ms 432 KB Output is correct
35 Correct 4865 ms 416 KB Output is correct
36 Correct 4992 ms 424 KB Output is correct
37 Correct 4945 ms 420 KB Output is correct
38 Correct 4910 ms 440 KB Output is correct
39 Correct 4900 ms 424 KB Output is correct
40 Execution timed out 5004 ms 420 KB Time limit exceeded
41 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 328 KB Output is correct
8 Correct 0 ms 328 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 328 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 70 ms 340 KB Output is correct
22 Correct 70 ms 352 KB Output is correct
23 Correct 78 ms 452 KB Output is correct
24 Correct 87 ms 340 KB Output is correct
25 Correct 85 ms 360 KB Output is correct
26 Correct 71 ms 340 KB Output is correct
27 Correct 70 ms 348 KB Output is correct
28 Correct 74 ms 356 KB Output is correct
29 Correct 89 ms 340 KB Output is correct
30 Correct 76 ms 340 KB Output is correct
31 Correct 4925 ms 424 KB Output is correct
32 Correct 4876 ms 424 KB Output is correct
33 Correct 4999 ms 420 KB Output is correct
34 Correct 4902 ms 432 KB Output is correct
35 Correct 4865 ms 416 KB Output is correct
36 Correct 4992 ms 424 KB Output is correct
37 Correct 4945 ms 420 KB Output is correct
38 Correct 4910 ms 440 KB Output is correct
39 Correct 4900 ms 424 KB Output is correct
40 Execution timed out 5004 ms 420 KB Time limit exceeded
41 Halted 0 ms 0 KB -