oj.uz

Submission #867745

# Submission time Handle Problem Language Result Execution time Memory
867745 2023-10-29T12:07:53 Z goodspeed0208 Group Photo (JOI21_ho_t3) C++14
12 / 100
 1866 ms 123556 KB 
#include<iostream>
#include<vector>
#include<algorithm>
#define INF 1000000000
using namespace std;

int main() {
	int n;
	cin >> n;
	vector<int>v(n);
	for (auto &i : v) cin >> i;
	vector<vector<int> >dp((1 << n), vector<int>(n, INF));
	vector<int>back(n, 0);
	for (int i = n-2 ; i >= 0 ; i--) {
		back[i] = back[i+1] | (1 << (i+1));
		//cout << back[i] << " ";
	}
	//cout << "\n";
	int cost = 1;
	for (int i = 0 ; i < n ; i++) dp[1 << i][i] = i;
	for (int i = 1 ; i < (1 << n) ; i++) {
		int t = __builtin_popcount(i);
		for (int j = 0 ; j < n ; j++) {
			for (int k = 0 ; k < n ; k++) {
				if ( ((i >> k) & 1)==0 && (v[j] < v[k] + 2) ) {
					int cost = k - t + __builtin_popcount(i & back[k]);
					//cout << k << " " << t << " " << __builtin_popcount(i & back[k]) << "\n";
					dp[i | (1 << k) ][k] = min(dp[i | (1 << k)][k], dp[i][j] + cost);
				}
			} 
		}
	}
	/*for (int j = 0 ; j < n ; j++) {
		for (int i = 0 ; i < n ; i++) {
			cout << dp[(1 << n) - 1][i] << endl;
		}
	}*/
	cout << *min_element(dp[(1 << n) - 1].begin(), dp[(1 << n) - 1].end()) << "\n";
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:19:6: warning: unused variable 'cost' [-Wunused-variable]
   19 |  int cost = 1;
      |      ^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 428 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 436 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 428 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 436 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 371 ms 27104 KB Output is correct
12 Correct 788 ms 61988 KB Output is correct
13 Correct 820 ms 61992 KB Output is correct
14 Correct 1727 ms 123548 KB Output is correct
15 Correct 1820 ms 123548 KB Output is correct
16 Correct 1787 ms 123548 KB Output is correct
17 Correct 1772 ms 123548 KB Output is correct
18 Correct 1866 ms 123556 KB Output is correct
19 Correct 1832 ms 123544 KB Output is correct
20 Correct 1767 ms 123544 KB Output is correct

Subtask #3
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 428 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 436 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 371 ms 27104 KB Output is correct
12 Correct 788 ms 61988 KB Output is correct
13 Correct 820 ms 61992 KB Output is correct
14 Correct 1727 ms 123548 KB Output is correct
15 Correct 1820 ms 123548 KB Output is correct
16 Correct 1787 ms 123548 KB Output is correct
17 Correct 1772 ms 123548 KB Output is correct
18 Correct 1866 ms 123556 KB Output is correct
19 Correct 1832 ms 123544 KB Output is correct
20 Correct 1767 ms 123544 KB Output is correct
21 Runtime error 1 ms 604 KB Execution killed with signal 11
22 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 428 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 436 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 371 ms 27104 KB Output is correct
12 Correct 788 ms 61988 KB Output is correct
13 Correct 820 ms 61992 KB Output is correct
14 Correct 1727 ms 123548 KB Output is correct
15 Correct 1820 ms 123548 KB Output is correct
16 Correct 1787 ms 123548 KB Output is correct
17 Correct 1772 ms 123548 KB Output is correct
18 Correct 1866 ms 123556 KB Output is correct
19 Correct 1832 ms 123544 KB Output is correct
20 Correct 1767 ms 123544 KB Output is correct
21 Runtime error 1 ms 604 KB Execution killed with signal 11
22 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 428 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 436 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 371 ms 27104 KB Output is correct
12 Correct 788 ms 61988 KB Output is correct
13 Correct 820 ms 61992 KB Output is correct
14 Correct 1727 ms 123548 KB Output is correct
15 Correct 1820 ms 123548 KB Output is correct
16 Correct 1787 ms 123548 KB Output is correct
17 Correct 1772 ms 123548 KB Output is correct
18 Correct 1866 ms 123556 KB Output is correct
19 Correct 1832 ms 123544 KB Output is correct
20 Correct 1767 ms 123544 KB Output is correct
21 Runtime error 1 ms 604 KB Execution killed with signal 11
22 Halted 0 ms 0 KB -