oj.uz

Submission #711529

# Submission time Handle Problem Language Result Execution time Memory
711529 2023-03-17T07:50:07 Z badont Klasika (COCI20_klasika) C++17
33 / 110
 1948 ms 524288 KB 
#include<bits/stdc++.h>
using namespace std;

void dbg_out() { cout << endl; }
template<typename Head, typename... Tail> void dbg_out(Head H, Tail... T) { cout << ' ' << H; dbg_out(T...); }

#ifdef LOCAL
#define debug(...) cout << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)
#else
#define debug(...) "zzz"
#endif

using ll = long long;
using ld = long double;
using pii = pair<ll,ll>;

#define FOR(i, n) for(int i = 1; i<=n; i++)
#define F0R(i, n) for(int i = 0; i<n; i++)
#define all(x) x.begin(), x.end()
#define mp make_pair
#define pb push_back
#define f first
#define s second

template<typename T, typename = void> struct is_iterable : false_type {};
template<typename T> struct is_iterable<T, void_t<decltype(begin(declval<T>())),decltype(end(declval<T>()))>> : true_type {};
template<typename T> typename enable_if<is_iterable<T>::value&&!is_same<T, string>::value,ostream&>::type operator<<(ostream &cout, T const &v);
template<typename A, typename B> ostream& operator<<(ostream &cout, pair<A, B> const &p) { return cout << "(" << p.f << ", " << p.s << ")"; }
template<typename T> typename enable_if<is_iterable<T>::value&&!is_same<T, string>::value,ostream&>::type operator<<(ostream &cout, T const &v) {
	cout << "["; 
	for (auto it = v.begin(); it != v.end();) {
		cout << *it;
		if (++it != v.end()) cout << ", ";
	}
	return cout << "]";
}

//var 
ll T;

void solve() {
	ll q; cin >> q;

	ll n = 1;
	vector<array<ll, 3>> queries(q);
	for (auto& [T, x, y] : queries) {
		string s; cin >> s;
		if (s == "Add") T = 0;
		else T = 1;
		cin >> x >> y;
		x--;
		if (T == 0) n++;
		if (T == 1) y--;
	}

	ll added_in = 1;
	vector e(n, vector<ll>());
	vector<ll> dp(n);
	vector<ll> tin(n), tout(n);
	dp[0] = 0;
	for (const auto& [T, x, y] : queries) {
		if (T == 0) {
			ll to = added_in++;
			e[x].pb(to);
			dp[to] = dp[x] ^ y;
		}
	}

	ll cc = 0;
	auto dfs_euler = [&](auto dfs_euler, ll g) -> void {
		tin[g] = cc++;
		for (auto u : e[g]) 
			dfs_euler(dfs_euler, u);
		tout[g] = cc++;
	};

	dfs_euler(dfs_euler, 0);

	struct Node {
		array<set<int>, 2> agg;
		array<Node*, 2> c;

		Node() : agg({set<int>{}, set<int>{}}), c({nullptr, nullptr}) {}
	};

	Node* root = new Node;
	Node* cur = root;
	for (int i = 30; i >= 0; i--) {
		if (cur->c[0] == nullptr) {
			cur->c[0] = new Node;
		}
		cur->agg[0].insert(0);
		cur = cur->c[0];
	}

	ll added_recent = 0;
	for (const auto& [T, x, y] : queries) {
		if (T == 0) {
			added_recent++;
			ll z = dp[added_recent];
			Node* cur = root;
			int in_set = tin[added_recent];
			for (int i = 30; i >= 0; i--) {
				int b = (z >> i) & 1;
				if (cur->c[b] == nullptr) {
					cur->c[b] = new Node;
				}
				cur->agg[b].insert(in_set);
				cur = cur->c[b];
			}
		} else {
			Node* cur = root;
			ll geq = tin[y], les = tout[y];
			ll z = dp[x];
			ll ans = 0;
			for (int i = 30; i >= 0; i--) {
				int b = (z >> i) & 1;
				int w = b ^ 1;
				auto iter = cur->agg[w].lower_bound(geq);
				if (iter != cur->agg[w].end() and *iter < les) {
					ans ^= (1LL << i);
					cur = cur->c[w];
				} else {
					cur = cur->c[w ^ 1];
				}
			} 

			cout << ans << "\n";
		}
	}
}

int main() {
	ios_base::sync_with_stdio(0); 
	cin.tie(0);

	T = 1;
	//cin >> T;
	FOR(t, T)
		solve();

	cout.flush();
	return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 2 ms 852 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 572 KB Output is correct
7 Correct 1 ms 724 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 1 ms 852 KB Output is correct
12 Correct 1 ms 980 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 2 ms 852 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 572 KB Output is correct
7 Correct 1 ms 724 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 1 ms 852 KB Output is correct
12 Correct 1 ms 980 KB Output is correct
13 Correct 4 ms 2132 KB Output is correct
14 Correct 8 ms 3808 KB Output is correct
15 Correct 6 ms 5460 KB Output is correct
16 Correct 8 ms 6996 KB Output is correct
17 Correct 5 ms 2132 KB Output is correct
18 Correct 6 ms 3728 KB Output is correct
19 Correct 6 ms 5388 KB Output is correct
20 Correct 8 ms 6868 KB Output is correct
21 Correct 4 ms 2132 KB Output is correct
22 Correct 5 ms 3728 KB Output is correct
23 Correct 7 ms 5324 KB Output is correct
24 Correct 8 ms 6868 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 628 ms 151108 KB Output is correct
2 Correct 1041 ms 284024 KB Output is correct
3 Correct 1505 ms 410616 KB Output is correct
4 Runtime error 1948 ms 524288 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 2 ms 852 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 572 KB Output is correct
7 Correct 1 ms 724 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 1 ms 852 KB Output is correct
12 Correct 1 ms 980 KB Output is correct
13 Correct 4 ms 2132 KB Output is correct
14 Correct 8 ms 3808 KB Output is correct
15 Correct 6 ms 5460 KB Output is correct
16 Correct 8 ms 6996 KB Output is correct
17 Correct 5 ms 2132 KB Output is correct
18 Correct 6 ms 3728 KB Output is correct
19 Correct 6 ms 5388 KB Output is correct
20 Correct 8 ms 6868 KB Output is correct
21 Correct 4 ms 2132 KB Output is correct
22 Correct 5 ms 3728 KB Output is correct
23 Correct 7 ms 5324 KB Output is correct
24 Correct 8 ms 6868 KB Output is correct
25 Correct 628 ms 151108 KB Output is correct
26 Correct 1041 ms 284024 KB Output is correct
27 Correct 1505 ms 410616 KB Output is correct
28 Runtime error 1948 ms 524288 KB Execution killed with signal 9
29 Halted 0 ms 0 KB -