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Submission #340057

# Submission time Handle Problem Language Result Execution time Memory
340057 2020-12-26T17:10:29 Z sinamhdv Klasika (COCI20_klasika) C++11
110 / 110
 3266 ms 430828 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int mod = 1000 * 1000 * 1000 + 7;
const int INF = 1000 * 1000 * 1000;
const ll LINF = (ll)INF * INF;

#ifdef DEBUG
#define dbg(x) cout << #x << " = " << (x) << endl << flush;
#define dbgr(s, f) { cout << #s << ": "; for (auto _ = (s); _ != (f); _++) cout << *_ << ' '; cout << endl << flush; }
#else
#define dbg(x) ;
#define dbgr(s, f) ;
#endif
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define fast_io ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define msub(a, b) ((mod + ((a) - (b)) % mod) % mod)
#define mdiv(a, b) ((a) * poww((b), mod - 2) % mod)
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define mp make_pair
#define fr first
#define sc second
#define endl '\n'

struct QR
{
	char op;
	int x, y;
};

#define MAXN 200100
#define LOGN 31
#define MAXL (16 * MAXN)

int n, q;
int dp[MAXN];
vector<pii> cld[MAXN];
QR qr[MAXN];
int sttime[MAXN], fntime[MAXN], timer;

void dfs(int v, int x)
{
	sttime[v] = timer++;
	dp[v] = x;
	for (pii p : cld[v])
	{
		dfs(p.fr, x ^ p.sc);
	}
	fntime[v] = timer;
}

int trie[MAXL][2];
set<int> ts[MAXL];
int tn = 1;

inline bool hasrng(int i, int l, int r)
{
	return ts[i].lower_bound(l) != ts[i].upper_bound(r);
}

void add(int i, int x)
{
	int v = 1;
	for (int bpos = LOGN - 1; bpos >= 0; bpos--)
	{
		int b = (x & (1 << bpos)) >> bpos;
		if (!trie[v][b])
		{
			tn++;
			trie[v][b] = tn;
		}
		ts[v].insert(i);
		v = trie[v][b];
	}
	ts[v].insert(i);
}

int query(int l, int r, int x)
{
	int res = 0;
	int v = 1;
	for (int bpos = LOGN - 1; bpos >= 0; bpos--)
	{
		int b = (x & (1 << bpos)) >> bpos;
		if (trie[v][1 - b] && hasrng(trie[v][1 - b], l, r))
		{
			res |= ((1 - b) << bpos);
			v = trie[v][1 - b];
		}
		else
		{
			v = trie[v][b];
			res |= (b << bpos);
		}
	}
	return res ^ x;
}

int32_t main(void)
{
	fast_io;
	n = 1;
	cin >> q;
	FOR(i, 0, q)
	{
		string op;
		int x, y;
		cin >> op >> x >> y;
		qr[i] = {op[0], x, y};
		if (op[0] == 'A')
		{
			n++;
			cld[x].pb(mp(n, y));
		}
	}
	dfs(1, 0);
	
	int cnt = 1;
	add(sttime[1], dp[1]);
	FOR(i, 0, q)
	{
		if (qr[i].op == 'A')
		{
			cnt++;
			add(sttime[cnt], dp[cnt]);
		}
		else
		{
			cout << query(sttime[qr[i].y], fntime[qr[i].y] - 1, dp[qr[i].x]) << endl;
		}
	}
	return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 155500 KB Output is correct
2 Correct 95 ms 155628 KB Output is correct
3 Correct 97 ms 155756 KB Output is correct
4 Correct 95 ms 155756 KB Output is correct
5 Correct 96 ms 155500 KB Output is correct
6 Correct 96 ms 155628 KB Output is correct
7 Correct 96 ms 155628 KB Output is correct
8 Correct 97 ms 155756 KB Output is correct
9 Correct 95 ms 155500 KB Output is correct
10 Correct 94 ms 155628 KB Output is correct
11 Correct 94 ms 155628 KB Output is correct
12 Correct 95 ms 155756 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 155500 KB Output is correct
2 Correct 95 ms 155628 KB Output is correct
3 Correct 97 ms 155756 KB Output is correct
4 Correct 95 ms 155756 KB Output is correct
5 Correct 96 ms 155500 KB Output is correct
6 Correct 96 ms 155628 KB Output is correct
7 Correct 96 ms 155628 KB Output is correct
8 Correct 97 ms 155756 KB Output is correct
9 Correct 95 ms 155500 KB Output is correct
10 Correct 94 ms 155628 KB Output is correct
11 Correct 94 ms 155628 KB Output is correct
12 Correct 95 ms 155756 KB Output is correct
13 Correct 98 ms 156268 KB Output is correct
14 Correct 103 ms 156908 KB Output is correct
15 Correct 101 ms 157676 KB Output is correct
16 Correct 101 ms 158316 KB Output is correct
17 Correct 99 ms 156140 KB Output is correct
18 Correct 100 ms 156908 KB Output is correct
19 Correct 100 ms 157548 KB Output is correct
20 Correct 102 ms 158188 KB Output is correct
21 Correct 98 ms 156300 KB Output is correct
22 Correct 101 ms 156908 KB Output is correct
23 Correct 100 ms 157688 KB Output is correct
24 Correct 103 ms 158188 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1275 ms 229484 KB Output is correct
2 Correct 1837 ms 296684 KB Output is correct
3 Correct 2369 ms 363116 KB Output is correct
4 Correct 2887 ms 430752 KB Output is correct
5 Correct 1166 ms 226540 KB Output is correct
6 Correct 1760 ms 292596 KB Output is correct
7 Correct 2338 ms 356844 KB Output is correct
8 Correct 2954 ms 421868 KB Output is correct
9 Correct 1128 ms 226540 KB Output is correct
10 Correct 1779 ms 293280 KB Output is correct
11 Correct 2401 ms 358936 KB Output is correct
12 Correct 2966 ms 423660 KB Output is correct

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 155500 KB Output is correct
2 Correct 95 ms 155628 KB Output is correct
3 Correct 97 ms 155756 KB Output is correct
4 Correct 95 ms 155756 KB Output is correct
5 Correct 96 ms 155500 KB Output is correct
6 Correct 96 ms 155628 KB Output is correct
7 Correct 96 ms 155628 KB Output is correct
8 Correct 97 ms 155756 KB Output is correct
9 Correct 95 ms 155500 KB Output is correct
10 Correct 94 ms 155628 KB Output is correct
11 Correct 94 ms 155628 KB Output is correct
12 Correct 95 ms 155756 KB Output is correct
13 Correct 98 ms 156268 KB Output is correct
14 Correct 103 ms 156908 KB Output is correct
15 Correct 101 ms 157676 KB Output is correct
16 Correct 101 ms 158316 KB Output is correct
17 Correct 99 ms 156140 KB Output is correct
18 Correct 100 ms 156908 KB Output is correct
19 Correct 100 ms 157548 KB Output is correct
20 Correct 102 ms 158188 KB Output is correct
21 Correct 98 ms 156300 KB Output is correct
22 Correct 101 ms 156908 KB Output is correct
23 Correct 100 ms 157688 KB Output is correct
24 Correct 103 ms 158188 KB Output is correct
25 Correct 1275 ms 229484 KB Output is correct
26 Correct 1837 ms 296684 KB Output is correct
27 Correct 2369 ms 363116 KB Output is correct
28 Correct 2887 ms 430752 KB Output is correct
29 Correct 1166 ms 226540 KB Output is correct
30 Correct 1760 ms 292596 KB Output is correct
31 Correct 2338 ms 356844 KB Output is correct
32 Correct 2954 ms 421868 KB Output is correct
33 Correct 1128 ms 226540 KB Output is correct
34 Correct 1779 ms 293280 KB Output is correct
35 Correct 2401 ms 358936 KB Output is correct
36 Correct 2966 ms 423660 KB Output is correct
37 Correct 1781 ms 228972 KB Output is correct
38 Correct 2352 ms 296300 KB Output is correct
39 Correct 2778 ms 364652 KB Output is correct
40 Correct 3073 ms 430828 KB Output is correct
41 Correct 1882 ms 226412 KB Output is correct
42 Correct 2459 ms 291948 KB Output is correct
43 Correct 2879 ms 356456 KB Output is correct
44 Correct 3266 ms 420972 KB Output is correct
45 Correct 2020 ms 226156 KB Output is correct
46 Correct 2640 ms 292752 KB Output is correct
47 Correct 3032 ms 357356 KB Output is correct
48 Correct 3247 ms 423404 KB Output is correct