Submission #397381

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
397381	2021-05-02T01:55:39 Z	AQT	Group Photo (JOI21_ho_t3)	C++14	100 / 100	482 ms	452 KB

Main

#include <bits/stdc++.h>

using namespace std;

int N;
int arr[5005];
int dp[5005];
int cst[5005][5005];
int bit[5005];
int pos[5005];

void upd(int p){
	p++;
	while(p <= N){
		bit[p]++;
		p += p&-p;
	}
}

int query(int p){
	p++;
	int ret = 0;
	while(p){
		ret += bit[p];
		p -= p & -p;
	}
	return ret;
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	/*
	cin >> N;
	priority_queue<int, vector<int>, greater<int>> pq;
	for(int i = 1; i <= N; i++){
		cin >> arr[i];
		if(i > 1 && arr[i] + 1 < arr[i-1]){
			pq.push(i-1);
		}
	}
	int ans = 0;
	while(pq.size()){
		int n =pq.top();
		pq.pop();
		if(arr[n+1] + 1 < arr[n]){
			swap(arr[n], arr[n+1]);
			if(n != 1 && arr[n] + 1 < arr[n-1]){
				pq.push(n-1);
			}
			if(n != N-1 && arr[n+2] + 1 < arr[n+1]){
				pq.push(n+1);
			}
			ans++;
		}
	}
	for(int i = 1; i <= N; i++){
		cout << arr[i] << " ";
	}
	cout << ans;
	*/
	/*
	cin >> N;
	for(int i = 1; i <= N; i++){
		cin >> arr[i];
	}
	int ans = 0;
	int pos = 0;
	for(int l = 1; l <= N;){
		int r = l;
		for(int i = N; i; i--){
			if(arr[i] == r){
				r++;
			}
		}
		l = r;
		r--;
		for(int i = 1; i <= N; i++){
			if(arr[i] == r){
				pos++;
				for(int j = i-1; j >= pos; j--){
					ans++;
					swap(arr[j], arr[j+1]);
					for(int k = 1; k <= N; k++){
						cout << arr[k] << " ";
					}
					cout << "\n";
					cout << r << "\n";
				}
				r--;
			}
		}
	}
	cout << ans;
	*/
	cin >> N;
	for(int i = 1; i <= N; i++){
		cin >> arr[i];
		pos[arr[i]] = i;
		dp[i] = INT_MAX/2;
	}
	for(int l = 1; l <= N; l++){
		fill(bit, bit+1+N, 0);
		int tot = 0;
		int idx = 0;
		for(int i = 1; i <= N; i++){
			if(arr[i] >= l){
				pos[arr[i]] = idx++;
			}
		}
		for(int r = l; r <= N; r++){
			tot += query(pos[r]);
			tot += pos[r];
			upd(pos[r]);
			dp[r] = min(dp[r], dp[l-1] + tot - (r - l) * (r - l + 1)/2);
		}
	}
	cout << dp[N];
}

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 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	1 ms	328 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	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 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	1 ms	328 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	1 ms	332 KB	Output is correct
14	Correct	1 ms	328 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 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	332 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	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 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	1 ms	328 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	1 ms	332 KB	Output is correct
14	Correct	1 ms	328 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 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	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	1 ms	332 KB	Output is correct
30	Correct	1 ms	332 KB	Output is correct

Subtask #4
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 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	1 ms	328 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	1 ms	332 KB	Output is correct
14	Correct	1 ms	328 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 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	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	1 ms	332 KB	Output is correct
30	Correct	1 ms	332 KB	Output is correct
31	Correct	12 ms	352 KB	Output is correct
32	Correct	11 ms	332 KB	Output is correct
33	Correct	12 ms	356 KB	Output is correct
34	Correct	14 ms	356 KB	Output is correct
35	Correct	12 ms	344 KB	Output is correct
36	Correct	11 ms	332 KB	Output is correct
37	Correct	11 ms	352 KB	Output is correct
38	Correct	11 ms	332 KB	Output is correct
39	Correct	11 ms	328 KB	Output is correct
40	Correct	11 ms	348 KB	Output is correct

Subtask #5
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 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	1 ms	328 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	1 ms	332 KB	Output is correct
14	Correct	1 ms	328 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 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	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	1 ms	332 KB	Output is correct
30	Correct	1 ms	332 KB	Output is correct
31	Correct	12 ms	352 KB	Output is correct
32	Correct	11 ms	332 KB	Output is correct
33	Correct	12 ms	356 KB	Output is correct
34	Correct	14 ms	356 KB	Output is correct
35	Correct	12 ms	344 KB	Output is correct
36	Correct	11 ms	332 KB	Output is correct
37	Correct	11 ms	352 KB	Output is correct
38	Correct	11 ms	332 KB	Output is correct
39	Correct	11 ms	328 KB	Output is correct
40	Correct	11 ms	348 KB	Output is correct
41	Correct	463 ms	412 KB	Output is correct
42	Correct	469 ms	452 KB	Output is correct
43	Correct	460 ms	408 KB	Output is correct
44	Correct	464 ms	412 KB	Output is correct
45	Correct	461 ms	332 KB	Output is correct
46	Correct	462 ms	404 KB	Output is correct
47	Correct	482 ms	412 KB	Output is correct
48	Correct	466 ms	416 KB	Output is correct
49	Correct	463 ms	452 KB	Output is correct
50	Correct	459 ms	416 KB	Output is correct
51	Correct	462 ms	416 KB	Output is correct
52	Correct	469 ms	452 KB	Output is correct
53	Correct	461 ms	404 KB	Output is correct
54	Correct	461 ms	332 KB	Output is correct
55	Correct	459 ms	452 KB	Output is correct

Submission #397381

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