oj.uz

Submission #206525

# Submission time Handle Problem Language Result Execution time Memory
206525 2020-03-03T17:23:42 Z BorisBarca Klasika (COCI20_klasika) C++14
33 / 110
 5000 ms 26648 KB 
/*
$$$$$$$\                      $$\           $$$$$$$\
$$  __$$\                     \__|          $$  __$$\
$$ |  $$ | $$$$$$\   $$$$$$\  $$\  $$$$$$$\ $$ |  $$ | $$$$$$\   $$$$$$\   $$$$$$$\ $$$$$$\
$$$$$$$\ |$$  __$$\ $$  __$$\ $$ |$$  _____|$$$$$$$\ | \____$$\ $$  __$$\ $$  _____|\____$$\
$$  __$$\ $$ /  $$ |$$ |  \__|$$ |\$$$$$$\  $$  __$$\  $$$$$$$ |$$ |  \__|$$ /      $$$$$$$ |
$$ |  $$ |$$ |  $$ |$$ |      $$ | \____$$\ $$ |  $$ |$$  __$$ |$$ |      $$ |     $$  __$$ |
$$$$$$$  |\$$$$$$  |$$ |      $$ |$$$$$$$  |$$$$$$$  |\$$$$$$$ |$$ |      \$$$$$$$\\$$$$$$$ |
\_______/  \______/ \__|      \__|\_______/ \_______/  \_______|\__|       \_______|\_______|
*/
#include <bits/stdc++.h>

using namespace std;

#define PB push_back
#define MP make_pair
#define INS insert
#define LB lower_bound
#define UB upper_bound
#define pii pair <int,int>
#define pll pair <long long, long long>
#define si pair<string, int>
#define is pair<int, string>
#define X first
#define Y second
#define _ << " " <<
#define sz(x) (int)x.size()
#define all(a) (a).begin(),(a).end()
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define FORD(i, a, b) for (int i = (a); i > (b); --i)
#define FORR(i, l, r) for (int i = (l); i <= (r); ++i)
#define FORP(i, a, b) for ((i) = (a); (i) < (b); ++i)
#define FORA(i, x) for (auto &i : x)
#define REP(i, n) FOR(i, 0, n)
#define BITS(x) __builtin_popcount(x)
#define MSET memset
#define MCPY memcpy
#define SQ(a) (a) * (a)
#define TRACE(x) cout << #x " = " << (x) << '\n';
#define YES cout << "YES\n"
#define NO cout << "NO\n"

typedef long long ll;
typedef long double ld;
typedef vector <int> vi;
typedef vector <pii> vpi;
typedef vector <ll> vll;
typedef vector <pll> vpl;
typedef vector <double> vd;
typedef vector <ld> vld;
typedef vector<si> vsi;
typedef vector<is> vis;
typedef vector<string> vs;
//((float) t)/CLOCKS_PER_SEC

const int MOD = 1e9 + 7;
const double PI = acos(-1);
const int INF = 1e9 + 10;
const ll INFL = 1e18 + 10;
const int ABC = 30;
const int dx[] = {-1, 1, 0, 0};
const int dy[] = {0, 0, -1, 1};
const int dox[] = {-1, 1, 0, 0, -1, -1, 1, 1};
const int doy[] = {0, 0, -1, 1, -1, 1, -1, 1};

inline int sum(int a, int b){
	if (a + b < 0)
		return (a + b + MOD) % MOD;
	return (a + b) % MOD;
}

inline void add(int &a, int b){
	a = sum(a, b);
}

inline int mul(int a, int b){
	return (ll)a * (ll)b % MOD;
}

inline int sub(int a, int b){
	return (a - b + MOD) % MOD;
}

inline int fast_pot(ll pot, int n){
	ll ret = 1;
	while (n){
		if (n & 1)
			ret = (ret * pot) % MOD;
			pot = (pot * pot) % MOD;
			n >>= 1;
		}
	return ret;
}

inline int divide(int a, int b){
	return mul(a, fast_pot(b, MOD - 2));
}

ll lcm(ll a, ll b){
	return abs(a * b) / __gcd(a, b);
}

inline double ccw(pii A, pii B, pii C){
	return (A.X * B.Y) - (A.Y * B.X) + (B.X * C.Y) - (B.Y * C.X) + (C.X * A.Y) - (C.Y * A.X);
}

inline int CCW(pii A, pii B, pii C){
	double val = ccw(A, B, C);
	double eps = max(max(abs(A.X), abs(A.Y)), max(max(abs(B.X), abs(B.Y)), max(abs(C.X), abs(C.Y)))) / 1e9;
	if (val <= -eps)
		return -1;
	if (val >= eps)
		return 1;
	return 0;
}

void to_upper(string &x){
	REP(i, sz(x))
		x[i] = toupper(x[i]);
}

void to_lower(string &x){
	REP(i, sz(x))
		x[i] = tolower(x[i]);
}

string its(ll x){
	if (x == 0)
		return "0";
	string ret = "";
	while (x > 0){
		ret += (x % 10) + '0';
		x /= 10;
	}
	reverse(all(ret));
	return ret;
}

ll sti(string s){
	ll ret = 0;
	REP(i, sz(s)){
		ret *= 10;
		ret += (s[i] - '0');
	}
	return ret;
}

const int N = 2e5 + 10;

struct query{
	int t; 
	int x, y;
} Q[N];

int disc[N], up[N], path[N], idx;
vi e[N];

struct node{
	set <int> id;
	node *nxt[2];

	node(){
		id.clear();
		REP(i, 2)
			nxt[i] = NULL;
	}

} root;

void Add(node *curr, int b, int cvor){
	curr -> id.INS(disc[cvor]);
	if (b < 0)
		return;
	if (path[cvor] & (1 << b)){
		if (curr -> nxt[1] == NULL)
			curr -> nxt[1] = new node();
		Add(curr -> nxt[1], b - 1, cvor);
	} else {
		if (curr -> nxt[0] == NULL)
			curr -> nxt[0] = new node();
		Add(curr -> nxt[0], b - 1, cvor);
	}
}

int Query(node *curr, int b, int cvor, int lo, int hi){
	if (b < 0)
		return 0;
	if (path[cvor] & (1 << b)){
		auto nxt = curr -> nxt[0];
		if (nxt == NULL || LB(all(nxt -> id), lo) == UB(all(nxt -> id), hi))
			return Query(curr -> nxt[1], b - 1, cvor, lo, hi);
		return (1 << b) + Query(curr -> nxt[0], b - 1, cvor, lo, hi);
	} else {
		auto nxt = curr -> nxt[1];
		if (nxt == NULL || LB(all(nxt -> id), lo) == UB(all(nxt -> id), hi))
			return Query(curr -> nxt[0], b - 1, cvor, lo, hi);
		return (1 << b) + Query(curr -> nxt[1], b - 1, cvor, lo, hi);
	}
}

void dfs(int node){
	disc[node] = idx++;
	up[node] = disc[node];
	FORA(nxt, e[node]){
		dfs(nxt);
		up[node] = max(up[node], up[nxt]);
	}
}

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

	int q; cin >> q;
	int n = 2;
	path[1] = 0;
	REP(i, q){
		string s; cin >> s;
		cin >> Q[i].x >> Q[i].y;
		if (s[0] == 'A'){
			Q[i].t = 0;
			e[Q[i].x].PB(n);
			path[n] = path[Q[i].x] ^ Q[i].y;
			n++;
		} else {
			Q[i].t = 1;
		}
	}

	idx = 0;
	dfs(1);
	Add(&root, 30, 1);
	n = 2;
	REP(i, q){
		if (Q[i].t == 0){
			Add(&root, 30, n);
			n++;
		} else
			cout << Query(&root, 30, Q[i].x, disc[Q[i].y], up[Q[i].y]) << '\n';
	}

	return 0;
}

Compilation message

klasika.cpp: In function 'int fast_pot(ll, int)':
klasika.cpp:87:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   if (n & 1)
   ^~
klasika.cpp:89:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
    pot = (pot * pot) % MOD;
    ^~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 5240 KB Output is correct
2 Correct 8 ms 5368 KB Output is correct
3 Correct 8 ms 5496 KB Output is correct
4 Correct 8 ms 5624 KB Output is correct
5 Correct 8 ms 5240 KB Output is correct
6 Correct 8 ms 5368 KB Output is correct
7 Correct 9 ms 5496 KB Output is correct
8 Correct 9 ms 5624 KB Output is correct
9 Correct 8 ms 5240 KB Output is correct
10 Correct 9 ms 5368 KB Output is correct
11 Correct 8 ms 5496 KB Output is correct
12 Correct 8 ms 5624 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 5240 KB Output is correct
2 Correct 8 ms 5368 KB Output is correct
3 Correct 8 ms 5496 KB Output is correct
4 Correct 8 ms 5624 KB Output is correct
5 Correct 8 ms 5240 KB Output is correct
6 Correct 8 ms 5368 KB Output is correct
7 Correct 9 ms 5496 KB Output is correct
8 Correct 9 ms 5624 KB Output is correct
9 Correct 8 ms 5240 KB Output is correct
10 Correct 9 ms 5368 KB Output is correct
11 Correct 8 ms 5496 KB Output is correct
12 Correct 8 ms 5624 KB Output is correct
13 Correct 30 ms 6520 KB Output is correct
14 Correct 29 ms 7800 KB Output is correct
15 Correct 34 ms 9080 KB Output is correct
16 Correct 31 ms 10312 KB Output is correct
17 Correct 25 ms 6392 KB Output is correct
18 Correct 36 ms 7672 KB Output is correct
19 Correct 41 ms 8952 KB Output is correct
20 Correct 33 ms 10104 KB Output is correct
21 Correct 24 ms 6392 KB Output is correct
22 Correct 34 ms 7672 KB Output is correct
23 Correct 36 ms 8952 KB Output is correct
24 Correct 33 ms 10104 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5064 ms 26648 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 5240 KB Output is correct
2 Correct 8 ms 5368 KB Output is correct
3 Correct 8 ms 5496 KB Output is correct
4 Correct 8 ms 5624 KB Output is correct
5 Correct 8 ms 5240 KB Output is correct
6 Correct 8 ms 5368 KB Output is correct
7 Correct 9 ms 5496 KB Output is correct
8 Correct 9 ms 5624 KB Output is correct
9 Correct 8 ms 5240 KB Output is correct
10 Correct 9 ms 5368 KB Output is correct
11 Correct 8 ms 5496 KB Output is correct
12 Correct 8 ms 5624 KB Output is correct
13 Correct 30 ms 6520 KB Output is correct
14 Correct 29 ms 7800 KB Output is correct
15 Correct 34 ms 9080 KB Output is correct
16 Correct 31 ms 10312 KB Output is correct
17 Correct 25 ms 6392 KB Output is correct
18 Correct 36 ms 7672 KB Output is correct
19 Correct 41 ms 8952 KB Output is correct
20 Correct 33 ms 10104 KB Output is correct
21 Correct 24 ms 6392 KB Output is correct
22 Correct 34 ms 7672 KB Output is correct
23 Correct 36 ms 8952 KB Output is correct
24 Correct 33 ms 10104 KB Output is correct
25 Execution timed out 5064 ms 26648 KB Time limit exceeded
26 Halted 0 ms 0 KB -