oj.uz

Submission #711560

# Submission time Handle Problem Language Result Execution time Memory
711560 2023-03-17T08:43:45 Z badont Klasika (COCI20_klasika) C++17
33 / 110
 2159 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;
 struct Node {
	array<set<int>, 2> agg;
	array<Node*, 2> c;

	Node() : agg({set<int>{}, set<int>{}}), c({nullptr, nullptr}) {}
};
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);
 
	e.clear();
	
 
	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 572 KB Output is correct
3 Correct 1 ms 852 KB Output is correct
4 Correct 1 ms 956 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 596 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 572 KB Output is correct
3 Correct 1 ms 852 KB Output is correct
4 Correct 1 ms 956 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 596 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 2124 KB Output is correct
14 Correct 5 ms 3796 KB Output is correct
15 Correct 6 ms 5452 KB Output is correct
16 Correct 7 ms 6936 KB Output is correct
17 Correct 5 ms 2004 KB Output is correct
18 Correct 6 ms 3672 KB Output is correct
19 Correct 8 ms 5304 KB Output is correct
20 Correct 11 ms 6788 KB Output is correct
21 Correct 3 ms 2132 KB Output is correct
22 Correct 6 ms 3796 KB Output is correct
23 Correct 7 ms 5388 KB Output is correct
24 Correct 7 ms 6868 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 581 ms 147740 KB Output is correct
2 Correct 1092 ms 279064 KB Output is correct
3 Correct 1522 ms 403904 KB Output is correct
4 Runtime error 2159 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 572 KB Output is correct
3 Correct 1 ms 852 KB Output is correct
4 Correct 1 ms 956 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 596 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 2124 KB Output is correct
14 Correct 5 ms 3796 KB Output is correct
15 Correct 6 ms 5452 KB Output is correct
16 Correct 7 ms 6936 KB Output is correct
17 Correct 5 ms 2004 KB Output is correct
18 Correct 6 ms 3672 KB Output is correct
19 Correct 8 ms 5304 KB Output is correct
20 Correct 11 ms 6788 KB Output is correct
21 Correct 3 ms 2132 KB Output is correct
22 Correct 6 ms 3796 KB Output is correct
23 Correct 7 ms 5388 KB Output is correct
24 Correct 7 ms 6868 KB Output is correct
25 Correct 581 ms 147740 KB Output is correct
26 Correct 1092 ms 279064 KB Output is correct
27 Correct 1522 ms 403904 KB Output is correct
28 Runtime error 2159 ms 524288 KB Execution killed with signal 9
29 Halted 0 ms 0 KB -