oj.uz

Submission #873913

# Submission time Handle Problem Language Result Execution time Memory
873913 2023-11-16T02:42:57 Z noiaint Klasika (COCI20_klasika) C++17
110 / 110
 2280 ms 434792 KB 
#include<bits/stdc++.h>
// #define long long long
using namespace std;
 
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 520
#endif
 
const int N = 2e5 + 5;
const int MOD = 1e9 + 7; // 998244353
const int inf = INT_MAX; // LLONG_MAX
const int LOG = 30;
template<class T> bool minimize(T &a, T b) { return a > b ? (a = b, true) : false; }
template<class T> bool maximize(T &a, T b) { return a < b ? (a = b, true) : false; }
template<class T> bool add(T &a, T b) { a += b; while (a > MOD) a -= MOD; return true; }
 
#define BIT(x, i) (((x) >> (i)) & 1)
 
struct TrieNode {
	set<int> s;
	TrieNode *child[2];
	TrieNode() {
		child[0] = child[1] = NULL;
	}
};
 
struct Trie {
	TrieNode *root;
	Trie() {
		root = new TrieNode();
	}
	void add(int value, int id) {
		TrieNode *p = root;
		for (int i = LOG; i >= 0; --i) {
			int c = BIT(value, i);
			if (p->child[c] == NULL) p->child[c] = new TrieNode();
			p = p->child[c];
			p->s.insert(id);
		}
	}
	int get(int value, int L, int R) {
		int ans = 0;
		TrieNode *p = root;
		for (int i = LOG; i >= 0; --i) {
			int c = BIT(value, i);
			c ^= 1;
			if (p->child[c] == NULL || p->child[c]->s.lower_bound(L) == p->child[c]->s.upper_bound(R)) p = p->child[c ^ 1];
			else {
				ans += (1 << i);
				p = p->child[c];
			}
		}
		return ans;
	}
} trie;
 
struct Query {
	int type, x, y;
};
 
vector<pair<int, int> > g[N];
int St[N], Ft[N], Rxor[N];
vector<Query> Q;
int Time = 0;
 
void DFS(int u, int p, int L) {
	St[u] = ++Time;
	Rxor[u] = L;
	for (auto [v, w] : g[u]) if (v != p) {
		DFS(v, u, w ^ L);
	}
	Ft[u] = Time;
}
 
int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
 
	int n = 1;
	int q; cin >> q;
	while (q--) {
		string s; cin >> s;
		int x, y; cin >> x >> y;
		--x;
		if (s == "Add") {
			Q.push_back({0, n, y});
			g[x].push_back({n, y});
			g[n].push_back({x, y});
			++n;
		} else {
			--y;
			Q.push_back({1, x, y});
		}
	}
 
	DFS(0, -1, 0);
	trie.add(0, St[0]);
 
	for (auto [type, x, y] : Q) {
		if (type == 0) trie.add(Rxor[x], St[x]);
		else cout << trie.get(Rxor[x], St[y], Ft[y]) << '\n';
	}
 
	return 0;
}
// I'm thinking out loud!

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7516 KB Output is correct
2 Correct 2 ms 7516 KB Output is correct
3 Correct 2 ms 7516 KB Output is correct
4 Correct 2 ms 7772 KB Output is correct
5 Correct 2 ms 7260 KB Output is correct
6 Correct 2 ms 7516 KB Output is correct
7 Correct 2 ms 7516 KB Output is correct
8 Correct 2 ms 7848 KB Output is correct
9 Correct 2 ms 7260 KB Output is correct
10 Correct 2 ms 7516 KB Output is correct
11 Correct 3 ms 7768 KB Output is correct
12 Correct 2 ms 7772 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7516 KB Output is correct
2 Correct 2 ms 7516 KB Output is correct
3 Correct 2 ms 7516 KB Output is correct
4 Correct 2 ms 7772 KB Output is correct
5 Correct 2 ms 7260 KB Output is correct
6 Correct 2 ms 7516 KB Output is correct
7 Correct 2 ms 7516 KB Output is correct
8 Correct 2 ms 7848 KB Output is correct
9 Correct 2 ms 7260 KB Output is correct
10 Correct 2 ms 7516 KB Output is correct
11 Correct 3 ms 7768 KB Output is correct
12 Correct 2 ms 7772 KB Output is correct
13 Correct 4 ms 8540 KB Output is correct
14 Correct 5 ms 9820 KB Output is correct
15 Correct 6 ms 11100 KB Output is correct
16 Correct 8 ms 12380 KB Output is correct
17 Correct 4 ms 8540 KB Output is correct
18 Correct 5 ms 9904 KB Output is correct
19 Correct 6 ms 11096 KB Output is correct
20 Correct 7 ms 12120 KB Output is correct
21 Correct 4 ms 8540 KB Output is correct
22 Correct 5 ms 9820 KB Output is correct
23 Correct 6 ms 11100 KB Output is correct
24 Correct 7 ms 12124 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 604 ms 125332 KB Output is correct
2 Correct 940 ms 231316 KB Output is correct
3 Correct 1241 ms 332592 KB Output is correct
4 Correct 1556 ms 434680 KB Output is correct
5 Correct 541 ms 123636 KB Output is correct
6 Correct 972 ms 227868 KB Output is correct
7 Correct 1382 ms 326984 KB Output is correct
8 Correct 1881 ms 426180 KB Output is correct
9 Correct 538 ms 123196 KB Output is correct
10 Correct 886 ms 228092 KB Output is correct
11 Correct 1319 ms 328956 KB Output is correct
12 Correct 1877 ms 427828 KB Output is correct

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7516 KB Output is correct
2 Correct 2 ms 7516 KB Output is correct
3 Correct 2 ms 7516 KB Output is correct
4 Correct 2 ms 7772 KB Output is correct
5 Correct 2 ms 7260 KB Output is correct
6 Correct 2 ms 7516 KB Output is correct
7 Correct 2 ms 7516 KB Output is correct
8 Correct 2 ms 7848 KB Output is correct
9 Correct 2 ms 7260 KB Output is correct
10 Correct 2 ms 7516 KB Output is correct
11 Correct 3 ms 7768 KB Output is correct
12 Correct 2 ms 7772 KB Output is correct
13 Correct 4 ms 8540 KB Output is correct
14 Correct 5 ms 9820 KB Output is correct
15 Correct 6 ms 11100 KB Output is correct
16 Correct 8 ms 12380 KB Output is correct
17 Correct 4 ms 8540 KB Output is correct
18 Correct 5 ms 9904 KB Output is correct
19 Correct 6 ms 11096 KB Output is correct
20 Correct 7 ms 12120 KB Output is correct
21 Correct 4 ms 8540 KB Output is correct
22 Correct 5 ms 9820 KB Output is correct
23 Correct 6 ms 11100 KB Output is correct
24 Correct 7 ms 12124 KB Output is correct
25 Correct 604 ms 125332 KB Output is correct
26 Correct 940 ms 231316 KB Output is correct
27 Correct 1241 ms 332592 KB Output is correct
28 Correct 1556 ms 434680 KB Output is correct
29 Correct 541 ms 123636 KB Output is correct
30 Correct 972 ms 227868 KB Output is correct
31 Correct 1382 ms 326984 KB Output is correct
32 Correct 1881 ms 426180 KB Output is correct
33 Correct 538 ms 123196 KB Output is correct
34 Correct 886 ms 228092 KB Output is correct
35 Correct 1319 ms 328956 KB Output is correct
36 Correct 1877 ms 427828 KB Output is correct
37 Correct 1259 ms 126336 KB Output is correct
38 Correct 1674 ms 231360 KB Output is correct
39 Correct 1928 ms 334984 KB Output is correct
40 Correct 1858 ms 434792 KB Output is correct
41 Correct 1024 ms 123912 KB Output is correct
42 Correct 1600 ms 227068 KB Output is correct
43 Correct 2093 ms 326692 KB Output is correct
44 Correct 2280 ms 425320 KB Output is correct
45 Correct 1265 ms 123236 KB Output is correct
46 Correct 1766 ms 228548 KB Output is correct
47 Correct 1984 ms 328028 KB Output is correct
48 Correct 1922 ms 428176 KB Output is correct