oj.uz

답안 #685870

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
685870 2023-01-25T02:23:31 Z Ninja_Kunai 늑대인간 (IOI18_werewolf) C++14
15 / 100
 264 ms 30796 KB 
/**
*    Author :  Nguyen Tuan Vu
*    Created : 25.01.2023
**/

#pragma GCC optimize("O2")
#pragma GCC target("avx,avx2,fma")
#include<bits/stdc++.h>
#define MASK(x) ((1ll)<<(x))
#define BIT(x, i) (((x)>>(i))&(1))
#define ALL(v)  (v).begin(), (v).end()
#define REP(i, n)  for (int i = 0, _n = (n); i < _n; ++i)
#define FOR(i, a, b)  for (int i = (a), _b = (b); i <= _b; ++i) 
#define FORD(i, b, a)  for (int i = (b), _a = (a); i >= _a; --i)
#define db(val) "["#val" = "<<(val)<<"] "

template <class X, class Y> bool minimize(X &a, Y b) {
    if (a > b) return a = b, true;
    return false;
}
template <class X, class Y> bool maximize(X &a, Y b) {
    if (a < b) return a = b, true;
    return false;
}

using namespace std;

mt19937 jdg(chrono::steady_clock::now().time_since_epoch().count());
int Rand(int l, int r) {return l + jdg() % (r - l + 1);}

const int MAXN = 4e5 + 5;
int n, m, nquery;
pair <int, int> edges[MAXN];
vector <int> adj[MAXN];

struct QUERY {
	int s, t, l, r;
	// constraints : 
	// For each query i : 0 <= i < Q
	// 0 <= l(i) <= s(i) <= n - 1
	// 0 <= e(i) <= r(i) <= n - 1
	// s(i) != e(i)
	// l(i) <= r(i)

	QUERY() {}
	QUERY(int s, int t, int l, int r) {
		this->s = s;
		this->t = t;
		this->l = l;
		this->r = r;
	}
} q[MAXN];

namespace sub2 {
	int dd[MAXN][2], cur;

	void dfs(int u, int trans, int i) {
		if (dd[u][trans] == cur) return;
		//cout << u << ' ' << trans << '\n';
		dd[u][trans] = cur;
		if (dd[q[i].t][1] == cur) return;

		for (auto v : adj[u]) {
			if (trans == 0) {
				if (q[i].l <= v && v <= q[i].r) {
					dfs(v, 0, i);
					dfs(v, 1, i);
				}
				else if (v > q[i].r) {
					dfs(v, 0, i);
				}
			}
			else {
				if (q[i].l <= v && v <= q[i].r) {
					dfs(v, 1, i);
				}
				else if (v < q[i].l) {
					dfs(v, 1, i);
				}	
			}
		}
	}

	vector <int> solve() {
		vector <int> tmp;
		FOR(i, 1, nquery) {
			++cur;
			dfs(q[i].s, 0, i);
			if (q[i].l <= q[i].s && q[i].s <= q[i].r) dfs(q[i].s, 1, i);

			if (dd[q[i].t][1] == cur) tmp.push_back(1);
			else tmp.push_back(0);
		}

		return tmp;
	}
};

vector <int> check_validity(int N, vector <int> X, vector <int> Y, vector <int> S, vector <int> T, vector <int> L, vector <int> R) {
	n = N; m = X.size(); nquery = S.size();
	REP(i, m) {
		edges[i + 1] = make_pair(X[i], Y[i]);
		adj[X[i]].push_back(Y[i]);
		adj[Y[i]].push_back(X[i]);
	}

	REP(i, nquery) q[i + 1] = QUERY(S[i], T[i], L[i], R[i]);

	if (n <= 3000 && m <= 6000 && nquery <= 3000) return sub2::solve();
	return vector <int> (nquery, 0);
}

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 6 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 5 ms 9708 KB Output is correct
5 Correct 7 ms 9684 KB Output is correct
6 Correct 6 ms 9684 KB Output is correct
7 Correct 7 ms 9684 KB Output is correct
8 Correct 6 ms 9684 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 6 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 5 ms 9708 KB Output is correct
5 Correct 7 ms 9684 KB Output is correct
6 Correct 6 ms 9684 KB Output is correct
7 Correct 7 ms 9684 KB Output is correct
8 Correct 6 ms 9684 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 152 ms 10228 KB Output is correct
11 Correct 114 ms 10164 KB Output is correct
12 Correct 19 ms 10372 KB Output is correct
13 Correct 132 ms 10352 KB Output is correct
14 Correct 99 ms 10164 KB Output is correct
15 Correct 264 ms 10344 KB Output is correct

Subtask #3
0 / 34.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 191 ms 30796 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 51.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 6 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 5 ms 9708 KB Output is correct
5 Correct 7 ms 9684 KB Output is correct
6 Correct 6 ms 9684 KB Output is correct
7 Correct 7 ms 9684 KB Output is correct
8 Correct 6 ms 9684 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 152 ms 10228 KB Output is correct
11 Correct 114 ms 10164 KB Output is correct
12 Correct 19 ms 10372 KB Output is correct
13 Correct 132 ms 10352 KB Output is correct
14 Correct 99 ms 10164 KB Output is correct
15 Correct 264 ms 10344 KB Output is correct
16 Incorrect 191 ms 30796 KB Output isn't correct
17 Halted 0 ms 0 KB -