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Submission #252747

# Submission time Handle Problem Language Result Execution time Memory
252747 2020-07-26T08:15:26 Z Mlxa Coin Collecting (JOI19_ho_t4) C++14
37 / 100
 35 ms 32388 KB 
#include <bits/stdc++.h>
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
#define x first
#define y second
using namespace std;
using ll  = long long;
#define int ll

void umin(int &a, int b) {
	a = min(a, b);
}
void umax(int &a, int b) {
	a = max(a, b);
}


const int N		= 2020;
const int INF 	= 1e18;

int n;
int x[N];
int y[N];
int p[N];
int w[N];
int dp[N][N];

int f(int i, int fx, int fy) {
	return abs(x[i] - fx) + abs(y[i] - fy);
}

signed main() {
#ifdef LC
    assert(freopen("input.txt", "r", stdin));
#endif
    ios::sync_with_stdio(0), cin.tie(0);
	cin >> n;
	for (int i = 0; i < 2 * n; ++i) {
		cin >> x[i] >> y[i];
		p[i] = i;
	}
	sort(p, p + 2 * n, [&](int i, int j) {
		return x[i] < x[j];
	});
	for (int i = 0; i < 2 * n; ++i) {
		w[p[i]] = i;
	}
	for (int i = 0; i < 2 * n; ++i) {
		while (w[i] != i) {
			int j = w[i];
			swap(w[i], w[j]);
			swap(x[i], x[j]);
			swap(y[i], y[j]);
		}
	}
	assert(is_sorted(x, x + 2 * n));
	fill_n(dp[0], N * N, INF);
	dp[0][0] = 0;
	for (int i = 0; i <= n; ++i) {
		for (int j = 0; j <= n; ++j) {
			if (i < n) {
				umin(dp[i + 1][j], dp[i][j] + f(i + j, i + 1, 1));
			}
			if (j < n) {
				umin(dp[i][j + 1], dp[i][j] + f(i + j, j + 1, 2));
			}
		}
	}
	cout << dp[n][n] << "\n";
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 32256 KB Output is correct
2 Correct 15 ms 32256 KB Output is correct
3 Correct 19 ms 32248 KB Output is correct
4 Correct 14 ms 32256 KB Output is correct
5 Correct 14 ms 32256 KB Output is correct
6 Correct 14 ms 32256 KB Output is correct
7 Correct 14 ms 32256 KB Output is correct
8 Correct 14 ms 32256 KB Output is correct
9 Correct 14 ms 32256 KB Output is correct
10 Correct 14 ms 32256 KB Output is correct
11 Correct 14 ms 32256 KB Output is correct
12 Correct 14 ms 32256 KB Output is correct
13 Correct 14 ms 32256 KB Output is correct
14 Correct 17 ms 32256 KB Output is correct
15 Correct 16 ms 32248 KB Output is correct
16 Correct 18 ms 32256 KB Output is correct
17 Correct 16 ms 32256 KB Output is correct
18 Correct 17 ms 32256 KB Output is correct
19 Correct 23 ms 32248 KB Output is correct
20 Correct 15 ms 32256 KB Output is correct
21 Correct 15 ms 32256 KB Output is correct
22 Correct 19 ms 32256 KB Output is correct
23 Correct 17 ms 32384 KB Output is correct
24 Correct 17 ms 32256 KB Output is correct
25 Correct 16 ms 32384 KB Output is correct
26 Correct 19 ms 32256 KB Output is correct
27 Correct 16 ms 32256 KB Output is correct
28 Correct 18 ms 32256 KB Output is correct
29 Correct 15 ms 32244 KB Output is correct
30 Correct 18 ms 32256 KB Output is correct
31 Correct 18 ms 32256 KB Output is correct
32 Correct 16 ms 32256 KB Output is correct
33 Correct 15 ms 32256 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 32256 KB Output is correct
2 Correct 15 ms 32256 KB Output is correct
3 Correct 19 ms 32248 KB Output is correct
4 Correct 14 ms 32256 KB Output is correct
5 Correct 14 ms 32256 KB Output is correct
6 Correct 14 ms 32256 KB Output is correct
7 Correct 14 ms 32256 KB Output is correct
8 Correct 14 ms 32256 KB Output is correct
9 Correct 14 ms 32256 KB Output is correct
10 Correct 14 ms 32256 KB Output is correct
11 Correct 14 ms 32256 KB Output is correct
12 Correct 14 ms 32256 KB Output is correct
13 Correct 14 ms 32256 KB Output is correct
14 Correct 17 ms 32256 KB Output is correct
15 Correct 16 ms 32248 KB Output is correct
16 Correct 18 ms 32256 KB Output is correct
17 Correct 16 ms 32256 KB Output is correct
18 Correct 17 ms 32256 KB Output is correct
19 Correct 23 ms 32248 KB Output is correct
20 Correct 15 ms 32256 KB Output is correct
21 Correct 15 ms 32256 KB Output is correct
22 Correct 19 ms 32256 KB Output is correct
23 Correct 17 ms 32384 KB Output is correct
24 Correct 17 ms 32256 KB Output is correct
25 Correct 16 ms 32384 KB Output is correct
26 Correct 19 ms 32256 KB Output is correct
27 Correct 16 ms 32256 KB Output is correct
28 Correct 18 ms 32256 KB Output is correct
29 Correct 15 ms 32244 KB Output is correct
30 Correct 18 ms 32256 KB Output is correct
31 Correct 18 ms 32256 KB Output is correct
32 Correct 16 ms 32256 KB Output is correct
33 Correct 15 ms 32256 KB Output is correct
34 Correct 34 ms 32384 KB Output is correct
35 Correct 23 ms 32384 KB Output is correct
36 Correct 23 ms 32384 KB Output is correct
37 Correct 21 ms 32384 KB Output is correct
38 Correct 21 ms 32384 KB Output is correct
39 Correct 23 ms 32384 KB Output is correct
40 Correct 22 ms 32384 KB Output is correct
41 Correct 24 ms 32376 KB Output is correct
42 Correct 21 ms 32384 KB Output is correct
43 Correct 21 ms 32384 KB Output is correct
44 Correct 21 ms 32384 KB Output is correct
45 Correct 25 ms 32376 KB Output is correct
46 Correct 24 ms 32384 KB Output is correct
47 Correct 21 ms 32384 KB Output is correct
48 Correct 23 ms 32384 KB Output is correct
49 Correct 23 ms 32384 KB Output is correct
50 Correct 35 ms 32376 KB Output is correct
51 Correct 24 ms 32376 KB Output is correct
52 Correct 21 ms 32384 KB Output is correct
53 Correct 25 ms 32384 KB Output is correct
54 Correct 24 ms 32384 KB Output is correct
55 Correct 22 ms 32384 KB Output is correct
56 Correct 25 ms 32384 KB Output is correct
57 Correct 22 ms 32384 KB Output is correct
58 Correct 21 ms 32384 KB Output is correct
59 Correct 21 ms 32384 KB Output is correct
60 Correct 21 ms 32384 KB Output is correct
61 Correct 22 ms 32384 KB Output is correct
62 Correct 21 ms 32384 KB Output is correct
63 Correct 22 ms 32384 KB Output is correct
64 Correct 21 ms 32388 KB Output is correct

Subtask #3
0 / 63.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 32256 KB Output is correct
2 Correct 15 ms 32256 KB Output is correct
3 Correct 19 ms 32248 KB Output is correct
4 Correct 14 ms 32256 KB Output is correct
5 Correct 14 ms 32256 KB Output is correct
6 Correct 14 ms 32256 KB Output is correct
7 Correct 14 ms 32256 KB Output is correct
8 Correct 14 ms 32256 KB Output is correct
9 Correct 14 ms 32256 KB Output is correct
10 Correct 14 ms 32256 KB Output is correct
11 Correct 14 ms 32256 KB Output is correct
12 Correct 14 ms 32256 KB Output is correct
13 Correct 14 ms 32256 KB Output is correct
14 Correct 17 ms 32256 KB Output is correct
15 Correct 16 ms 32248 KB Output is correct
16 Correct 18 ms 32256 KB Output is correct
17 Correct 16 ms 32256 KB Output is correct
18 Correct 17 ms 32256 KB Output is correct
19 Correct 23 ms 32248 KB Output is correct
20 Correct 15 ms 32256 KB Output is correct
21 Correct 15 ms 32256 KB Output is correct
22 Correct 19 ms 32256 KB Output is correct
23 Correct 17 ms 32384 KB Output is correct
24 Correct 17 ms 32256 KB Output is correct
25 Correct 16 ms 32384 KB Output is correct
26 Correct 19 ms 32256 KB Output is correct
27 Correct 16 ms 32256 KB Output is correct
28 Correct 18 ms 32256 KB Output is correct
29 Correct 15 ms 32244 KB Output is correct
30 Correct 18 ms 32256 KB Output is correct
31 Correct 18 ms 32256 KB Output is correct
32 Correct 16 ms 32256 KB Output is correct
33 Correct 15 ms 32256 KB Output is correct
34 Correct 34 ms 32384 KB Output is correct
35 Correct 23 ms 32384 KB Output is correct
36 Correct 23 ms 32384 KB Output is correct
37 Correct 21 ms 32384 KB Output is correct
38 Correct 21 ms 32384 KB Output is correct
39 Correct 23 ms 32384 KB Output is correct
40 Correct 22 ms 32384 KB Output is correct
41 Correct 24 ms 32376 KB Output is correct
42 Correct 21 ms 32384 KB Output is correct
43 Correct 21 ms 32384 KB Output is correct
44 Correct 21 ms 32384 KB Output is correct
45 Correct 25 ms 32376 KB Output is correct
46 Correct 24 ms 32384 KB Output is correct
47 Correct 21 ms 32384 KB Output is correct
48 Correct 23 ms 32384 KB Output is correct
49 Correct 23 ms 32384 KB Output is correct
50 Correct 35 ms 32376 KB Output is correct
51 Correct 24 ms 32376 KB Output is correct
52 Correct 21 ms 32384 KB Output is correct
53 Correct 25 ms 32384 KB Output is correct
54 Correct 24 ms 32384 KB Output is correct
55 Correct 22 ms 32384 KB Output is correct
56 Correct 25 ms 32384 KB Output is correct
57 Correct 22 ms 32384 KB Output is correct
58 Correct 21 ms 32384 KB Output is correct
59 Correct 21 ms 32384 KB Output is correct
60 Correct 21 ms 32384 KB Output is correct
61 Correct 22 ms 32384 KB Output is correct
62 Correct 21 ms 32384 KB Output is correct
63 Correct 22 ms 32384 KB Output is correct
64 Correct 21 ms 32388 KB Output is correct
65 Runtime error 3 ms 640 KB Execution killed with signal 11 (could be triggered by violating memory limits)
66 Halted 0 ms 0 KB -