oj.uz

Submission #426155

# Submission time Handle Problem Language Result Execution time Memory
426155 2021-06-13T14:44:57 Z Kevin_Zhang_TW IOI Fever (JOI21_fever) C++17
25 / 100
 5000 ms 33156 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T> bool chmin(T &a, T b) { return b < a && (a = b, true); }
template<class T> bool chmax(T &a, T b) { return a < b && (a = b, true); }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
void kout() { cerr << endl; }
template<class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
template<class T> void debug(T l, T r) { while (l != r) cerr << *l << " \n"[next(l)==r], ++l; }
#else
#define DE(...) 0
#define debug(...) 0
#endif

const int MAX_N = 300010;
const ll inf = 1ll << 55;

int n;
int x[MAX_N], y[MAX_N];

ll dp[MAX_N * 4];
vector<pair<int,int>> edge[MAX_N * 4];

int dis(int i, int j) { return abs(x[i]-x[j]) + abs(y[i]-y[j]); }
pair<int,int> adv(int i, int dir, int j) {
	int a = x[i], b = y[i];
	if (dir == 0) a += j;
	if (dir == 1) b += j;
	if (dir == 2) a -= j;
	if (dir == 3) b -= j;
	return make_pair(a, b);
}

void init() {
	for (int i = 0;i < n;++i)
		for (int j = i+1;j < n;++j) {
			for (int k = 0;k < 4;++k)
				for (int l = 0;l < 4;++l) {
					int h = dis(i, j) / 2;
					if (adv(i, k, h) == adv(j, l, h)) {
						int a = i * 4 + k, b = j * 4 + l;
						edge[a].pb(b, h);
						edge[b].pb(a, h);
					} 
				} 
		}
}

int solve(int d) {
	fill(dp, dp + n * 4, inf);
	priority_queue<pair<ll,ll>, vector<pair<ll,ll>>, greater<pair<ll,ll>>> pq;

	auto upd = [&](int id, ll t) {
		if (chmin(dp[id], t))
			pq.emplace(t, id);
	};

	upd(d, 0);
	while (pq.size()) {
		auto [t, id] = pq.top(); pq.pop();
		if (t != dp[id]) continue;
		for (auto [u, w] : edge[id]) {
			if (w >= t)
				upd(u, w);
		} 
	} 

	int res = 0;
	for (int i = 0;i < n;++i) {
		ll d = inf;
		for (int j = 0;j < 4;++j)
			chmin(d, dp[i * 4 + j]);
		if (d < inf) ++res;
	}
	return res;
}
int32_t main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> n;
	for (int i = 0;i < n;++i) cin >> x[i] >> y[i];

	init();

	int res = 1;
	for (int i = 0;i < 4;++i)
		chmax(res, solve(i));

	cout << res << '\n'; 
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 28496 KB Output is correct
2 Correct 18 ms 28492 KB Output is correct
3 Correct 18 ms 28480 KB Output is correct
4 Correct 18 ms 28492 KB Output is correct
5 Correct 18 ms 28492 KB Output is correct
6 Correct 17 ms 28492 KB Output is correct
7 Correct 18 ms 28400 KB Output is correct
8 Correct 16 ms 28492 KB Output is correct
9 Correct 18 ms 28460 KB Output is correct
10 Correct 19 ms 28504 KB Output is correct
11 Correct 16 ms 28452 KB Output is correct
12 Correct 16 ms 28492 KB Output is correct
13 Correct 18 ms 28468 KB Output is correct
14 Correct 19 ms 28500 KB Output is correct
15 Correct 21 ms 28492 KB Output is correct
16 Correct 17 ms 28404 KB Output is correct
17 Correct 18 ms 28492 KB Output is correct
18 Correct 16 ms 28460 KB Output is correct
19 Correct 18 ms 28416 KB Output is correct
20 Correct 18 ms 28500 KB Output is correct
21 Correct 16 ms 28484 KB Output is correct
22 Correct 18 ms 28432 KB Output is correct
23 Correct 16 ms 28492 KB Output is correct
24 Correct 16 ms 28476 KB Output is correct
25 Correct 16 ms 28492 KB Output is correct
26 Correct 17 ms 28492 KB Output is correct
27 Correct 16 ms 28496 KB Output is correct
28 Correct 19 ms 28504 KB Output is correct
29 Correct 16 ms 28492 KB Output is correct
30 Correct 16 ms 28432 KB Output is correct
31 Correct 19 ms 28496 KB Output is correct
32 Correct 17 ms 28500 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 28496 KB Output is correct
2 Correct 18 ms 28492 KB Output is correct
3 Correct 18 ms 28480 KB Output is correct
4 Correct 18 ms 28492 KB Output is correct
5 Correct 18 ms 28492 KB Output is correct
6 Correct 17 ms 28492 KB Output is correct
7 Correct 18 ms 28400 KB Output is correct
8 Correct 16 ms 28492 KB Output is correct
9 Correct 18 ms 28460 KB Output is correct
10 Correct 19 ms 28504 KB Output is correct
11 Correct 16 ms 28452 KB Output is correct
12 Correct 16 ms 28492 KB Output is correct
13 Correct 18 ms 28468 KB Output is correct
14 Correct 19 ms 28500 KB Output is correct
15 Correct 21 ms 28492 KB Output is correct
16 Correct 17 ms 28404 KB Output is correct
17 Correct 18 ms 28492 KB Output is correct
18 Correct 16 ms 28460 KB Output is correct
19 Correct 18 ms 28416 KB Output is correct
20 Correct 18 ms 28500 KB Output is correct
21 Correct 16 ms 28484 KB Output is correct
22 Correct 18 ms 28432 KB Output is correct
23 Correct 16 ms 28492 KB Output is correct
24 Correct 16 ms 28476 KB Output is correct
25 Correct 16 ms 28492 KB Output is correct
26 Correct 17 ms 28492 KB Output is correct
27 Correct 16 ms 28496 KB Output is correct
28 Correct 19 ms 28504 KB Output is correct
29 Correct 16 ms 28492 KB Output is correct
30 Correct 16 ms 28432 KB Output is correct
31 Correct 19 ms 28496 KB Output is correct
32 Correct 17 ms 28500 KB Output is correct
33 Correct 18 ms 28528 KB Output is correct
34 Correct 18 ms 28492 KB Output is correct
35 Correct 18 ms 28480 KB Output is correct
36 Correct 16 ms 28508 KB Output is correct
37 Correct 18 ms 28464 KB Output is correct
38 Correct 20 ms 28500 KB Output is correct
39 Correct 17 ms 28492 KB Output is correct
40 Correct 16 ms 28500 KB Output is correct
41 Correct 17 ms 28504 KB Output is correct
42 Correct 19 ms 28492 KB Output is correct
43 Correct 17 ms 28488 KB Output is correct
44 Correct 16 ms 28488 KB Output is correct
45 Correct 17 ms 28492 KB Output is correct

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 28444 KB Output is correct
2 Correct 18 ms 28484 KB Output is correct
3 Correct 18 ms 28492 KB Output is correct
4 Correct 16 ms 28492 KB Output is correct
5 Correct 17 ms 28456 KB Output is correct
6 Correct 17 ms 28748 KB Output is correct
7 Correct 17 ms 28672 KB Output is correct
8 Correct 17 ms 28748 KB Output is correct

Subtask #4
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 28496 KB Output is correct
2 Correct 18 ms 28492 KB Output is correct
3 Correct 18 ms 28480 KB Output is correct
4 Correct 18 ms 28492 KB Output is correct
5 Correct 18 ms 28492 KB Output is correct
6 Correct 17 ms 28492 KB Output is correct
7 Correct 18 ms 28400 KB Output is correct
8 Correct 16 ms 28492 KB Output is correct
9 Correct 18 ms 28460 KB Output is correct
10 Correct 19 ms 28504 KB Output is correct
11 Correct 16 ms 28452 KB Output is correct
12 Correct 16 ms 28492 KB Output is correct
13 Correct 18 ms 28468 KB Output is correct
14 Correct 19 ms 28500 KB Output is correct
15 Correct 21 ms 28492 KB Output is correct
16 Correct 17 ms 28404 KB Output is correct
17 Correct 18 ms 28492 KB Output is correct
18 Correct 16 ms 28460 KB Output is correct
19 Correct 18 ms 28416 KB Output is correct
20 Correct 18 ms 28500 KB Output is correct
21 Correct 16 ms 28484 KB Output is correct
22 Correct 18 ms 28432 KB Output is correct
23 Correct 16 ms 28492 KB Output is correct
24 Correct 16 ms 28476 KB Output is correct
25 Correct 16 ms 28492 KB Output is correct
26 Correct 17 ms 28492 KB Output is correct
27 Correct 16 ms 28496 KB Output is correct
28 Correct 19 ms 28504 KB Output is correct
29 Correct 16 ms 28492 KB Output is correct
30 Correct 16 ms 28432 KB Output is correct
31 Correct 19 ms 28496 KB Output is correct
32 Correct 17 ms 28500 KB Output is correct
33 Correct 18 ms 28528 KB Output is correct
34 Correct 18 ms 28492 KB Output is correct
35 Correct 18 ms 28480 KB Output is correct
36 Correct 16 ms 28508 KB Output is correct
37 Correct 18 ms 28464 KB Output is correct
38 Correct 20 ms 28500 KB Output is correct
39 Correct 17 ms 28492 KB Output is correct
40 Correct 16 ms 28500 KB Output is correct
41 Correct 17 ms 28504 KB Output is correct
42 Correct 19 ms 28492 KB Output is correct
43 Correct 17 ms 28488 KB Output is correct
44 Correct 16 ms 28488 KB Output is correct
45 Correct 17 ms 28492 KB Output is correct
46 Correct 19 ms 28444 KB Output is correct
47 Correct 18 ms 28484 KB Output is correct
48 Correct 18 ms 28492 KB Output is correct
49 Correct 16 ms 28492 KB Output is correct
50 Correct 17 ms 28456 KB Output is correct
51 Correct 17 ms 28748 KB Output is correct
52 Correct 17 ms 28672 KB Output is correct
53 Correct 17 ms 28748 KB Output is correct
54 Correct 16 ms 28492 KB Output is correct
55 Correct 18 ms 28492 KB Output is correct
56 Correct 22 ms 28492 KB Output is correct
57 Correct 17 ms 28504 KB Output is correct
58 Correct 20 ms 28764 KB Output is correct
59 Correct 19 ms 28496 KB Output is correct
60 Correct 20 ms 28500 KB Output is correct
61 Correct 20 ms 28560 KB Output is correct
62 Correct 20 ms 28492 KB Output is correct
63 Correct 22 ms 28444 KB Output is correct
64 Correct 22 ms 28384 KB Output is correct
65 Correct 20 ms 28548 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 28496 KB Output is correct
2 Correct 18 ms 28492 KB Output is correct
3 Correct 18 ms 28480 KB Output is correct
4 Correct 18 ms 28492 KB Output is correct
5 Correct 18 ms 28492 KB Output is correct
6 Correct 17 ms 28492 KB Output is correct
7 Correct 18 ms 28400 KB Output is correct
8 Correct 16 ms 28492 KB Output is correct
9 Correct 18 ms 28460 KB Output is correct
10 Correct 19 ms 28504 KB Output is correct
11 Correct 16 ms 28452 KB Output is correct
12 Correct 16 ms 28492 KB Output is correct
13 Correct 18 ms 28468 KB Output is correct
14 Correct 19 ms 28500 KB Output is correct
15 Correct 21 ms 28492 KB Output is correct
16 Correct 17 ms 28404 KB Output is correct
17 Correct 18 ms 28492 KB Output is correct
18 Correct 16 ms 28460 KB Output is correct
19 Correct 18 ms 28416 KB Output is correct
20 Correct 18 ms 28500 KB Output is correct
21 Correct 16 ms 28484 KB Output is correct
22 Correct 18 ms 28432 KB Output is correct
23 Correct 16 ms 28492 KB Output is correct
24 Correct 16 ms 28476 KB Output is correct
25 Correct 16 ms 28492 KB Output is correct
26 Correct 17 ms 28492 KB Output is correct
27 Correct 16 ms 28496 KB Output is correct
28 Correct 19 ms 28504 KB Output is correct
29 Correct 16 ms 28492 KB Output is correct
30 Correct 16 ms 28432 KB Output is correct
31 Correct 19 ms 28496 KB Output is correct
32 Correct 17 ms 28500 KB Output is correct
33 Correct 18 ms 28528 KB Output is correct
34 Correct 18 ms 28492 KB Output is correct
35 Correct 18 ms 28480 KB Output is correct
36 Correct 16 ms 28508 KB Output is correct
37 Correct 18 ms 28464 KB Output is correct
38 Correct 20 ms 28500 KB Output is correct
39 Correct 17 ms 28492 KB Output is correct
40 Correct 16 ms 28500 KB Output is correct
41 Correct 17 ms 28504 KB Output is correct
42 Correct 19 ms 28492 KB Output is correct
43 Correct 17 ms 28488 KB Output is correct
44 Correct 16 ms 28488 KB Output is correct
45 Correct 17 ms 28492 KB Output is correct
46 Correct 19 ms 28444 KB Output is correct
47 Correct 18 ms 28484 KB Output is correct
48 Correct 18 ms 28492 KB Output is correct
49 Correct 16 ms 28492 KB Output is correct
50 Correct 17 ms 28456 KB Output is correct
51 Correct 17 ms 28748 KB Output is correct
52 Correct 17 ms 28672 KB Output is correct
53 Correct 17 ms 28748 KB Output is correct
54 Correct 16 ms 28492 KB Output is correct
55 Correct 18 ms 28492 KB Output is correct
56 Correct 22 ms 28492 KB Output is correct
57 Correct 17 ms 28504 KB Output is correct
58 Correct 20 ms 28764 KB Output is correct
59 Correct 19 ms 28496 KB Output is correct
60 Correct 20 ms 28500 KB Output is correct
61 Correct 20 ms 28560 KB Output is correct
62 Correct 20 ms 28492 KB Output is correct
63 Correct 22 ms 28444 KB Output is correct
64 Correct 22 ms 28384 KB Output is correct
65 Correct 20 ms 28548 KB Output is correct
66 Correct 407 ms 28764 KB Output is correct
67 Correct 411 ms 28712 KB Output is correct
68 Correct 413 ms 28580 KB Output is correct
69 Incorrect 460 ms 33156 KB Output isn't correct
70 Halted 0 ms 0 KB -

Subtask #6
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 28496 KB Output is correct
2 Correct 18 ms 28492 KB Output is correct
3 Correct 18 ms 28480 KB Output is correct
4 Correct 18 ms 28492 KB Output is correct
5 Correct 18 ms 28492 KB Output is correct
6 Correct 17 ms 28492 KB Output is correct
7 Correct 18 ms 28400 KB Output is correct
8 Correct 16 ms 28492 KB Output is correct
9 Correct 18 ms 28460 KB Output is correct
10 Correct 19 ms 28504 KB Output is correct
11 Correct 16 ms 28452 KB Output is correct
12 Correct 16 ms 28492 KB Output is correct
13 Correct 18 ms 28468 KB Output is correct
14 Correct 19 ms 28500 KB Output is correct
15 Correct 21 ms 28492 KB Output is correct
16 Correct 17 ms 28404 KB Output is correct
17 Correct 18 ms 28492 KB Output is correct
18 Correct 16 ms 28460 KB Output is correct
19 Correct 18 ms 28416 KB Output is correct
20 Correct 18 ms 28500 KB Output is correct
21 Correct 16 ms 28484 KB Output is correct
22 Correct 18 ms 28432 KB Output is correct
23 Correct 16 ms 28492 KB Output is correct
24 Correct 16 ms 28476 KB Output is correct
25 Correct 16 ms 28492 KB Output is correct
26 Correct 17 ms 28492 KB Output is correct
27 Correct 16 ms 28496 KB Output is correct
28 Correct 19 ms 28504 KB Output is correct
29 Correct 16 ms 28492 KB Output is correct
30 Correct 16 ms 28432 KB Output is correct
31 Correct 19 ms 28496 KB Output is correct
32 Correct 17 ms 28500 KB Output is correct
33 Correct 18 ms 28528 KB Output is correct
34 Correct 18 ms 28492 KB Output is correct
35 Correct 18 ms 28480 KB Output is correct
36 Correct 16 ms 28508 KB Output is correct
37 Correct 18 ms 28464 KB Output is correct
38 Correct 20 ms 28500 KB Output is correct
39 Correct 17 ms 28492 KB Output is correct
40 Correct 16 ms 28500 KB Output is correct
41 Correct 17 ms 28504 KB Output is correct
42 Correct 19 ms 28492 KB Output is correct
43 Correct 17 ms 28488 KB Output is correct
44 Correct 16 ms 28488 KB Output is correct
45 Correct 17 ms 28492 KB Output is correct
46 Correct 19 ms 28444 KB Output is correct
47 Correct 18 ms 28484 KB Output is correct
48 Correct 18 ms 28492 KB Output is correct
49 Correct 16 ms 28492 KB Output is correct
50 Correct 17 ms 28456 KB Output is correct
51 Correct 17 ms 28748 KB Output is correct
52 Correct 17 ms 28672 KB Output is correct
53 Correct 17 ms 28748 KB Output is correct
54 Correct 16 ms 28492 KB Output is correct
55 Correct 18 ms 28492 KB Output is correct
56 Correct 22 ms 28492 KB Output is correct
57 Correct 17 ms 28504 KB Output is correct
58 Correct 20 ms 28764 KB Output is correct
59 Correct 19 ms 28496 KB Output is correct
60 Correct 20 ms 28500 KB Output is correct
61 Correct 20 ms 28560 KB Output is correct
62 Correct 20 ms 28492 KB Output is correct
63 Correct 22 ms 28444 KB Output is correct
64 Correct 22 ms 28384 KB Output is correct
65 Correct 20 ms 28548 KB Output is correct
66 Execution timed out 5074 ms 30056 KB Time limit exceeded
67 Halted 0 ms 0 KB -

Subtask #7
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 28496 KB Output is correct
2 Correct 18 ms 28492 KB Output is correct
3 Correct 18 ms 28480 KB Output is correct
4 Correct 18 ms 28492 KB Output is correct
5 Correct 18 ms 28492 KB Output is correct
6 Correct 17 ms 28492 KB Output is correct
7 Correct 18 ms 28400 KB Output is correct
8 Correct 16 ms 28492 KB Output is correct
9 Correct 18 ms 28460 KB Output is correct
10 Correct 19 ms 28504 KB Output is correct
11 Correct 16 ms 28452 KB Output is correct
12 Correct 16 ms 28492 KB Output is correct
13 Correct 18 ms 28468 KB Output is correct
14 Correct 19 ms 28500 KB Output is correct
15 Correct 21 ms 28492 KB Output is correct
16 Correct 17 ms 28404 KB Output is correct
17 Correct 18 ms 28492 KB Output is correct
18 Correct 16 ms 28460 KB Output is correct
19 Correct 18 ms 28416 KB Output is correct
20 Correct 18 ms 28500 KB Output is correct
21 Correct 16 ms 28484 KB Output is correct
22 Correct 18 ms 28432 KB Output is correct
23 Correct 16 ms 28492 KB Output is correct
24 Correct 16 ms 28476 KB Output is correct
25 Correct 16 ms 28492 KB Output is correct
26 Correct 17 ms 28492 KB Output is correct
27 Correct 16 ms 28496 KB Output is correct
28 Correct 19 ms 28504 KB Output is correct
29 Correct 16 ms 28492 KB Output is correct
30 Correct 16 ms 28432 KB Output is correct
31 Correct 19 ms 28496 KB Output is correct
32 Correct 17 ms 28500 KB Output is correct
33 Correct 18 ms 28528 KB Output is correct
34 Correct 18 ms 28492 KB Output is correct
35 Correct 18 ms 28480 KB Output is correct
36 Correct 16 ms 28508 KB Output is correct
37 Correct 18 ms 28464 KB Output is correct
38 Correct 20 ms 28500 KB Output is correct
39 Correct 17 ms 28492 KB Output is correct
40 Correct 16 ms 28500 KB Output is correct
41 Correct 17 ms 28504 KB Output is correct
42 Correct 19 ms 28492 KB Output is correct
43 Correct 17 ms 28488 KB Output is correct
44 Correct 16 ms 28488 KB Output is correct
45 Correct 17 ms 28492 KB Output is correct
46 Correct 19 ms 28444 KB Output is correct
47 Correct 18 ms 28484 KB Output is correct
48 Correct 18 ms 28492 KB Output is correct
49 Correct 16 ms 28492 KB Output is correct
50 Correct 17 ms 28456 KB Output is correct
51 Correct 17 ms 28748 KB Output is correct
52 Correct 17 ms 28672 KB Output is correct
53 Correct 17 ms 28748 KB Output is correct
54 Correct 16 ms 28492 KB Output is correct
55 Correct 18 ms 28492 KB Output is correct
56 Correct 22 ms 28492 KB Output is correct
57 Correct 17 ms 28504 KB Output is correct
58 Correct 20 ms 28764 KB Output is correct
59 Correct 19 ms 28496 KB Output is correct
60 Correct 20 ms 28500 KB Output is correct
61 Correct 20 ms 28560 KB Output is correct
62 Correct 20 ms 28492 KB Output is correct
63 Correct 22 ms 28444 KB Output is correct
64 Correct 22 ms 28384 KB Output is correct
65 Correct 20 ms 28548 KB Output is correct
66 Correct 407 ms 28764 KB Output is correct
67 Correct 411 ms 28712 KB Output is correct
68 Correct 413 ms 28580 KB Output is correct
69 Incorrect 460 ms 33156 KB Output isn't correct
70 Halted 0 ms 0 KB -