oj.uz

Submission #198918

# Submission time Handle Problem Language Result Execution time Memory
198918 2020-01-28T05:51:56 Z dimash241 Klasika (COCI20_klasika) C++17
33 / 110
 1098 ms 276848 KB 
#pragma GCC target("avx2")
#pragma GCC optimize("O3")

# include <x86intrin.h>
# include <bits/stdc++.h>

# include <ext/pb_ds/assoc_container.hpp>
# include <ext/pb_ds/tree_policy.hpp>

using namespace __gnu_pbds;
using namespace std;
 
template<typename T> using ordered_set = tree <T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
 
#define _USE_MATH_DEFINES_
#define ll long long
#define ld long double
#define Accepted 0
#define pb push_back
#define mp make_pair
#define sz(x) (int)(x.size())
#define every(x) x.begin(),x.end()
#define F first
#define S second
#define lb lower_bound
#define ub upper_bound
#define For(i,x,y)  for (ll i = x; i <= y; i ++) 
#define FOr(i,x,y)  for (ll i = x; i >= y; i --)
#define SpeedForce ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0)
// ROAD to...                                                                                                                                                                                                                Red
 
inline void Input_Output () {
	//freopen(".in", "r", stdin);
   //freopen(".out", "w", stdout);
}
 
const double eps = 0.000001;
const ld pi = acos(-1);
const int maxn = 1e7 + 9;
const int mod = 1e9 + 7;
const ll MOD = 1e18 + 9;
const ll INF = 1e18 + 123;
const int inf = 2e9 + 11;
const int mxn = 6e6 + 9;
const int N = 6e5 + 123;                                          
const int M = 22;
const int K = 30;
const int pri = 997;
const int Magic = 2101;
 
const int dx[] = {-1, 0, 1, 0};
const int dy[] = {0, -1, 0, 1};
 
 
int n = 1;
int ans[N];
int pref[N];
int Query[N];
vector < pair < int, int > > g[N], qb[N];
int f[N];
 
struct trie {
	int to[2];
	int mn;
	trie () {
		to[0] = to[1] = 0;
		mn = inf;
	}
} t[mxn];
vector < int > sub[N];
int ptr;
int p[N];
 
inline void upd (int rt, int val, int id) {
	int v = rt;
	//cout << "root: " << rt << '\n';
	//cout << rt << ' ' << val << ' ' << id << '\n';
	for (int i = K; i >= 0; i --) {
    	int bit = ((val >> i) & 1);
 
    	
		if (!t[v].to[bit]) t[v].to[bit] = ++ptr;
		t[v].mn = min(t[v].mn, id);
	//	cout << v << ' ' << t[v].to[bit] << '\n';
		v = t[v].to[bit];
	}
 
	t[v].mn = min(t[v].mn, id);
}
 
inline int get (int rt, int val, int r) {
	int v = rt;
	int res = 0;
 
	for (int i = K; i >= 0; i --) {
    	int bit = ((val >> i) & 1);
 
		bit ^= 1;
		//cout << bit << ' ' << 
 
		//cout << t[v].to[bit] << ' ' << t[t[v].to[bit]].mn << '\n';
		if (t[t[v].to[bit]].mn <= r) {
			res |= (1 << i);
			v = t[v].to[bit];
		} else {
			bit ^= 1;		
			v = t[v].to[bit];
	
		}
	}
	//cout << res << ' ' << t[v].mn << '\n';
	return res;
}
 
void dfs (int v, int pr = 0) {
	//cout << v << ' ' << f[v] << '\n';
	p[v] = ++ptr;
 
	for (auto to : g[v]) {
		f[to.F] = (f[v] ^ to.S);
		dfs(to.F);
	}
}
 
void _merge (int v, int to) {
	if (sub[p[v]].size() < sub[p[to]].size()) {
		swap(p[v], p[to]);
	}

	for (auto x : sub[p[to]]) {
		sub[p[v]].pb(x);
		upd (p[v], f[x], x);
	}
}
 
void show (int rt) {
	int v = rt;
	cout << "sh: " << v << ' ' << t[v].mn << '\n';
	if (t[v].to[0]) {
		show(t[v].to[0]);
	}
	if (t[v].to[1]) {
		show(t[v].to[1]);
	}
}               	
 
void go (int v, int pr = 0) {
	sub[p[v]].pb(v);
	//cout << "check: " << p[v] << ' ' << f[v] << ' ' << v << '\n';
	upd (p[v], f[v], v);
	for (auto to : g[v]) {
		go(to.F);
		_merge(v, to.F);
	}
	//exit(0);
 
	for (auto x : qb[v]) {
		//cout << f[x.S] << ' ' << get(p[v], f[x.S], pref[x.F]) << '\n';
	//	cout << x.F << ":\n";
		ans[x.F] = get(p[v], f[x.S], pref[x.F]);
	}
}
 
int main () {
	SpeedForce;
	int m;
	cin >> m;
	for (int i = 1; i <= m; i ++) {
 
		string type;
		cin >> type;
		if (type == "Add") {
			int x, y;
			cin >> x >> y;
			g[x].pb(mp(++n, y));
		} else {
			int a, b;
			cin >> a >> b;
			qb[b].pb(mp(i, a));
			Query[i] = 1;
		}
		
		pref[i] = n;		
	}
	
	dfs(1);
	go(1);
 
	for (int i = 1; i <= m; i++)
		if (Query[i])
			cout << ans[i] << '\n';
 
	return Accepted;
}
 
// B...a

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 113144 KB Output is correct
2 Correct 74 ms 113144 KB Output is correct
3 Correct 73 ms 113064 KB Output is correct
4 Correct 73 ms 113144 KB Output is correct
5 Correct 75 ms 113144 KB Output is correct
6 Correct 73 ms 113144 KB Output is correct
7 Correct 73 ms 113144 KB Output is correct
8 Correct 89 ms 113144 KB Output is correct
9 Correct 73 ms 113144 KB Output is correct
10 Correct 75 ms 113144 KB Output is correct
11 Correct 73 ms 113276 KB Output is correct
12 Correct 74 ms 113120 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 113144 KB Output is correct
2 Correct 74 ms 113144 KB Output is correct
3 Correct 73 ms 113064 KB Output is correct
4 Correct 73 ms 113144 KB Output is correct
5 Correct 75 ms 113144 KB Output is correct
6 Correct 73 ms 113144 KB Output is correct
7 Correct 73 ms 113144 KB Output is correct
8 Correct 89 ms 113144 KB Output is correct
9 Correct 73 ms 113144 KB Output is correct
10 Correct 75 ms 113144 KB Output is correct
11 Correct 73 ms 113276 KB Output is correct
12 Correct 74 ms 113120 KB Output is correct
13 Correct 75 ms 113276 KB Output is correct
14 Correct 78 ms 113276 KB Output is correct
15 Correct 77 ms 113272 KB Output is correct
16 Correct 77 ms 113400 KB Output is correct
17 Correct 75 ms 113144 KB Output is correct
18 Correct 76 ms 113276 KB Output is correct
19 Correct 80 ms 113400 KB Output is correct
20 Correct 76 ms 113272 KB Output is correct
21 Correct 77 ms 113144 KB Output is correct
22 Correct 75 ms 113272 KB Output is correct
23 Correct 76 ms 113248 KB Output is correct
24 Correct 76 ms 113272 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 251 ms 124260 KB Output is correct
2 Correct 297 ms 129260 KB Output is correct
3 Correct 277 ms 133868 KB Output is correct
4 Runtime error 1098 ms 276848 KB Execution killed with signal 11 (could be triggered by violating memory limits)
5 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 113144 KB Output is correct
2 Correct 74 ms 113144 KB Output is correct
3 Correct 73 ms 113064 KB Output is correct
4 Correct 73 ms 113144 KB Output is correct
5 Correct 75 ms 113144 KB Output is correct
6 Correct 73 ms 113144 KB Output is correct
7 Correct 73 ms 113144 KB Output is correct
8 Correct 89 ms 113144 KB Output is correct
9 Correct 73 ms 113144 KB Output is correct
10 Correct 75 ms 113144 KB Output is correct
11 Correct 73 ms 113276 KB Output is correct
12 Correct 74 ms 113120 KB Output is correct
13 Correct 75 ms 113276 KB Output is correct
14 Correct 78 ms 113276 KB Output is correct
15 Correct 77 ms 113272 KB Output is correct
16 Correct 77 ms 113400 KB Output is correct
17 Correct 75 ms 113144 KB Output is correct
18 Correct 76 ms 113276 KB Output is correct
19 Correct 80 ms 113400 KB Output is correct
20 Correct 76 ms 113272 KB Output is correct
21 Correct 77 ms 113144 KB Output is correct
22 Correct 75 ms 113272 KB Output is correct
23 Correct 76 ms 113248 KB Output is correct
24 Correct 76 ms 113272 KB Output is correct
25 Correct 251 ms 124260 KB Output is correct
26 Correct 297 ms 129260 KB Output is correct
27 Correct 277 ms 133868 KB Output is correct
28 Runtime error 1098 ms 276848 KB Execution killed with signal 11 (could be triggered by violating memory limits)
29 Halted 0 ms 0 KB -