Submission #1104059

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1104059	2024-10-22T16:01:10 Z	Champ_Naman	Group Photo (JOI21_ho_t3)	C++17	5 / 100	5000 ms	460 KB

Main

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define nl '\n'

inline void solve(){
	int n;
	cin>>n;
	int a[n];
	for(int i=0; i<n; i++) cin>>a[i];

	vector<int> v(n);
	iota(v.begin(), v.end(), 1);

	int ans = 1e18;
	do{
		auto b = v;
		bool tf = true;
		for(int i=0; i<n-1; i++){
			if(b[i] >= b[i+1]+2) tf = false;
		}
		if(!tf) continue;

		int subans = 0;
		for(int i=0; i<n; i++){
			if(a[i] == b[i]) continue;

			for(int j=i+1; j<n; j++){
				if(a[i] != b[j]) continue;

				for(int k=j; k>i; k--){
					swap(b[k], b[k-1]);
					subans++;
					if(subans >= ans) break;
				}
				break;
			}
			if(subans >= ans) break;
		}

		ans = min(ans, subans);
	}while(next_permutation(v.begin(), v.end()));

	cout<<ans<<nl;
}

signed main(){
	ios_base::sync_with_stdio(0);
	cin.tie(NULL);cout.tie(NULL);

	int t = 1;
	//cin>>t;
	while(t--) solve();

	return 0;
}

Subtask #1

5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	356 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	9 ms	336 KB	Output is correct
8	Correct	9 ms	460 KB	Output is correct
9	Correct	9 ms	336 KB	Output is correct
10	Correct	9 ms	336 KB	Output is correct

Subtask #2

0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	356 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	9 ms	336 KB	Output is correct
8	Correct	9 ms	460 KB	Output is correct
9	Correct	9 ms	336 KB	Output is correct
10	Correct	9 ms	336 KB	Output is correct
11	Execution timed out	5041 ms	336 KB	Time limit exceeded
12	Halted	0 ms	0 KB	-

Subtask #3

0 / 32.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	356 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	9 ms	336 KB	Output is correct
8	Correct	9 ms	460 KB	Output is correct
9	Correct	9 ms	336 KB	Output is correct
10	Correct	9 ms	336 KB	Output is correct
11	Execution timed out	5041 ms	336 KB	Time limit exceeded
12	Halted	0 ms	0 KB	-

Subtask #4

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	356 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	9 ms	336 KB	Output is correct
8	Correct	9 ms	460 KB	Output is correct
9	Correct	9 ms	336 KB	Output is correct
10	Correct	9 ms	336 KB	Output is correct
11	Execution timed out	5041 ms	336 KB	Time limit exceeded
12	Halted	0 ms	0 KB	-

Subtask #5

0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	356 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	9 ms	336 KB	Output is correct
8	Correct	9 ms	460 KB	Output is correct
9	Correct	9 ms	336 KB	Output is correct
10	Correct	9 ms	336 KB	Output is correct
11	Execution timed out	5041 ms	336 KB	Time limit exceeded
12	Halted	0 ms	0 KB	-