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Submission #659044

# Submission time Handle Problem Language Result Execution time Memory
659044 2022-11-16T06:02:42 Z shmad Drvca (COCI19_drvca) C++17
110 / 110
 169 ms 12112 KB 
#pragma GCC optimize("O3", "unroll-loops") // "Ofast" 	
#pragma GCC target("avx2", "bmi", "bmi2", "lzcnt", "popcnt") 

#include <bits/stdc++.h>

//#define int long long
#define vt vector
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
#define ff first
#define ss second
#define dbg(x) cerr << #x << " = " << x << '\n'
#define bit(x, i) ((x) >> (i) & 1)

using namespace std;
using ll = long long;
using pii = pair<int, int>;
using vvt = vt< vt<int> >;

const int N = 1e6 + 5, mod = 1e9 + 7, B = 500;
const ll inf = 1e18 + 7, LIM = (1ll << 60);
const double eps = 1e-6;

int n, a[N];

void go (int x, int y) {
	multiset<int> diff, R;
	vt<int> L;
	int d = a[y] - a[x], lst = -1;
	for (int i = 1; i <= n; i++) {
		if (i == x || i == y) continue;
		R.insert(a[i]);
	}
	L.pb(a[x]), L.pb(a[y]);
	for (int i: R) {
		if (lst != -1) diff.insert(i - lst);
		lst = i;
	}
	int cur = a[y] + d;
	do {
		if (*diff.begin() == *diff.rbegin()) {
			cout << sz(L) << '\n';
			for (int i: L) cout << i << ' ';
			cout << '\n';
			cout << sz(R) << '\n';
			for (int i: R) cout << i << ' ';
			cout << '\n';
			exit(0);
		}
		auto it = R.find(cur);
		if (it == R.end()) return;
		auto l = it, r = it;
		if (it != R.begin()) {
			l--;
			diff.erase(diff.find(*it - *l));
		}
		r++;
		if (r != R.end()) {
			diff.erase(diff.find(*r - *it));
			if (it != R.begin()) diff.insert(*r - *l);
		}
		R.erase(it);
		L.pb(cur);
		cur += d;
	} while (sz(L) < n);
}

void solve () {      	
	cin >> n;
	for (int i = 1; i <= n; i++) cin >> a[i];
	sort(a + 1, a + n + 1);             
	if (n == 2) {
		cout << "1\n" << a[1] << "\n1\n" << a[2] << '\n';
		return;
	}
	if (n == 3) {
		cout << "2\n" << a[1] << ' ' << a[2] << "\n1\n" << a[3] << '\n';
		return;
	}
	for (int i = 1; i <= 3; i++) {
		for (int j = i + 1; j <= 3; j++) go(i, j);
	}
	cout << -1;
	cout << '\n';
}

bool testcases = 0;

signed main() {
#ifdef ONLINE_JUDGE
	freopen(".in", "r", stdin);
	freopen(".out", "w", stdout);
#endif
	cin.tie(0) -> sync_with_stdio(0);
	int test = 1;
	if (testcases) cin >> test;
	for (int cs = 1; cs <= test; cs++) {
		solve();
	}
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 292 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 216 KB Output is correct
14 Correct 0 ms 212 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 292 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 216 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 0 ms 212 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 12032 KB Output is correct
2 Correct 68 ms 12064 KB Output is correct
3 Correct 92 ms 12032 KB Output is correct
4 Correct 68 ms 12056 KB Output is correct
5 Correct 86 ms 12104 KB Output is correct
6 Correct 67 ms 12016 KB Output is correct
7 Correct 92 ms 11984 KB Output is correct
8 Correct 71 ms 12072 KB Output is correct
9 Correct 69 ms 11488 KB Output is correct
10 Correct 78 ms 12020 KB Output is correct
11 Correct 58 ms 12112 KB Output is correct
12 Correct 1 ms 212 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 292 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 216 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 105 ms 12032 KB Output is correct
32 Correct 68 ms 12064 KB Output is correct
33 Correct 92 ms 12032 KB Output is correct
34 Correct 68 ms 12056 KB Output is correct
35 Correct 86 ms 12104 KB Output is correct
36 Correct 67 ms 12016 KB Output is correct
37 Correct 92 ms 11984 KB Output is correct
38 Correct 71 ms 12072 KB Output is correct
39 Correct 69 ms 11488 KB Output is correct
40 Correct 78 ms 12020 KB Output is correct
41 Correct 58 ms 12112 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 79 ms 12024 KB Output is correct
44 Correct 162 ms 11468 KB Output is correct
45 Correct 75 ms 11448 KB Output is correct
46 Correct 69 ms 11996 KB Output is correct
47 Correct 148 ms 11136 KB Output is correct
48 Correct 65 ms 11364 KB Output is correct
49 Correct 77 ms 11980 KB Output is correct
50 Correct 147 ms 11216 KB Output is correct
51 Correct 62 ms 11468 KB Output is correct
52 Correct 71 ms 12052 KB Output is correct
53 Correct 169 ms 11084 KB Output is correct
54 Correct 63 ms 11460 KB Output is correct
55 Correct 80 ms 12088 KB Output is correct
56 Correct 66 ms 12092 KB Output is correct
57 Correct 60 ms 12068 KB Output is correct
58 Correct 0 ms 212 KB Output is correct