#530060 (C++14) No.1170 Never Want to Walk

• 問題: No.1170 Never Want to Walk
• ユーザー: heno239
• 提出日時: 2020-08-14 21:35:15
• 言語: C++14 (gcc 12.3.0 + boost 1.83.0)
• 結果: AC
• 実行時間: 993 ms / 2,000 ms
• コード長: 5,401 bytes
• コンパイル時間: 1,803 ms
• コンパイル使用メモリ: 136,288 KB
• 実行使用メモリ: 185,216 KB
• 最終ジャッジ日時: 2024-10-10 14:38:09
• 合計ジャッジ時間: 12,623 ms
• ジャッジサーバーID （参考情報）: judge4 / judge3

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	7 ms; 19,780 KB
testcase_01	AC	7 ms; 19,908 KB
testcase_02	AC	7 ms; 19,780 KB
testcase_03	AC	8 ms; 19,780 KB
testcase_04	AC	6 ms; 19,912 KB
testcase_05	AC	6 ms; 19,908 KB
testcase_06	AC	6 ms; 19,784 KB
testcase_07	AC	6 ms; 19,908 KB
testcase_08	AC	7 ms; 19,780 KB
testcase_09	AC	7 ms; 19,776 KB
testcase_10	AC	7 ms; 19,780 KB
testcase_11	AC	7 ms; 19,784 KB
testcase_12	AC	9 ms; 20,164 KB
testcase_13	AC	9 ms; 20,164 KB
testcase_14	AC	9 ms; 20,292 KB
testcase_15	AC	9 ms; 20,168 KB
testcase_16	AC	9 ms; 20,164 KB
testcase_17	AC	10 ms; 20,292 KB
testcase_18	AC	9 ms; 20,164 KB
testcase_19	AC	9 ms; 20,160 KB
testcase_20	AC	9 ms; 20,164 KB
testcase_21	AC	9 ms; 20,288 KB
testcase_22	AC	10 ms; 20,292 KB
testcase_23	AC	10 ms; 20,420 KB
testcase_24	AC	9 ms; 20,296 KB
testcase_25	AC	9 ms; 20,292 KB
testcase_26	AC	9 ms; 20,420 KB
testcase_27	AC	535 ms; 122,748 KB
testcase_28	AC	535 ms; 122,028 KB
testcase_29	AC	524 ms; 120,756 KB
testcase_30	AC	550 ms; 121,128 KB
testcase_31	AC	533 ms; 122,200 KB
testcase_32	AC	846 ms; 174,660 KB
testcase_33	AC	993 ms; 181,728 KB
testcase_34	AC	848 ms; 172,840 KB
testcase_35	AC	867 ms; 185,216 KB
testcase_36	AC	858 ms; 173,948 KB
testcase_37	AC	813 ms; 167,772 KB
testcase_38	AC	774 ms; 161,292 KB

ソースコード

#include<iostream>
#include<string>
#include<cstdio>
#include<vector>
#include<cmath>
#include<algorithm>
#include<functional>
#include<iomanip>
#include<queue>
#include<ciso646>
#include<random>
#include<map>
#include<set>
#include<bitset>
#include<stack>
#include<unordered_map>
#include<utility>
#include<cassert>
#include<complex>
#include<numeric>
using namespace std;

//#define int long long
typedef long long ll;

typedef unsigned long long ul;
typedef unsigned int ui;
constexpr ll mod = 1000000007;
const ll INF = mod * mod;
typedef pair<int, int>P;
#define stop char nyaa;cin>>nyaa;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define per1(i,n) for(int i=n;i>=1;i--)
#define Rep1(i,sta,n) for(int i=sta;i<=n;i++)
#define all(v) (v).begin(),(v).end()
typedef pair<ll, ll> LP;
typedef double ld;
typedef pair<ld, ld> LDP;
const ld eps = 1e-12;
const ld pi = acos(-1.0);

ll mod_pow(ll x, ll n, ll m = mod) {
	ll res = 1;
	while (n) {
		if (n & 1)res = res * x % m;
		x = x * x % m; n >>= 1;
	}
	return res;
}
struct modint {
	ll n;
	modint() :n(0) { ; }
	modint(ll m) :n(m) {
		if (n >= mod)n %= mod;
		else if (n < 0)n = (n % mod + mod) % mod;
	}
	operator int() { return n; }
};
bool operator==(modint a, modint b) { return a.n == b.n; }
modint operator+=(modint& a, modint b) { a.n += b.n; if (a.n >= mod)a.n -= mod; return a; }
modint operator-=(modint& a, modint b) { a.n -= b.n; if (a.n < 0)a.n += mod; return a; }
modint operator*=(modint& a, modint b) { a.n = ((ll)a.n * b.n) % mod; return a; }
modint operator+(modint a, modint b) { return a += b; }
modint operator-(modint a, modint b) { return a -= b; }
modint operator*(modint a, modint b) { return a *= b; }
modint operator^(modint a, ll n) {
	if (n == 0)return modint(1);
	modint res = (a * a) ^ (n / 2);
	if (n % 2)res = res * a;
	return res;
}

ll inv(ll a, ll p) {
	return (a == 1 ? 1 : (1 - p * inv(p % a, a)) / a + p);
}
modint operator/(modint a, modint b) { return a * modint(inv(b, mod)); }

const int max_n = 1 << 20;
modint fact[max_n], factinv[max_n];
void init_f() {
	fact[0] = modint(1);
	for (int i = 0; i < max_n - 1; i++) {
		fact[i + 1] = fact[i] * modint(i + 1);
	}
	factinv[max_n - 1] = modint(1) / fact[max_n - 1];
	for (int i = max_n - 2; i >= 0; i--) {
		factinv[i] = factinv[i + 1] * modint(i + 1);
	}
}
modint comb(int a, int b) {
	if (a < 0 || b < 0 || a < b)return 0;
	return fact[a] * factinv[b] * factinv[a - b];
}

ll gcd(ll a, ll b) {
	if (a < b)swap(a, b);
	while (b) {
		ll r = a % b; a = b; b = r;
	}
	return a;
}

struct graph {
private:
	int n;
	vector<vector<int>> G, rG;
	vector<bool> used;
	vector<int> vs;

	int mk;
	vector<vector<int>> fG;
	vector<vector<int>> ori;
	vector<int> trans;
public:
	graph(int sz) {
		n = sz;
		G.resize(n);
		rG.resize(n);
		used.resize(n);

		fG.resize(n);
		trans.resize(n, -1);
		ori.resize(n);
	}
	void add_edge(int a, int b) {
		G[a].push_back(b);
		rG[b].push_back(a);
	}
	void dfs(int v) {
		used[v] = true;
		rep(i, G[v].size()) {
			if (!used[G[v][i]])dfs(G[v][i]);
		}
		vs.push_back(v);
	}
	void rdfs(int v, int k) {
		used[v] = true;
		queue<int> q; q.push(v);
		vector<int> c;
		while (!q.empty()) {
			int id = q.front(); q.pop();
			ori[k].push_back(id);
			rep(j, rG[id].size()) {
				int to = rG[id][j];
				if (used[to]) {
					if (trans[to] >= 0)c.push_back(trans[to]);
					continue;
				}
				used[to] = true; q.push(to);
			}
		}
		sort(c.begin(), c.end());
		int len = unique(c.begin(), c.end()) - c.begin();
		rep(i, len) {
			fG[c[i]].push_back(k);
		}
		rep(i, ori[k].size()) {
			trans[ori[k][i]] = k;
		}
	}
	void scc() {
		fill(used.begin(), used.end(), false);
		rep(i, n) {
			if (!used[i])dfs(i);
		}
		fill(used.begin(), used.end(), false);
		int k = 0;
		per(i, (int)vs.size()) {
			if (!used[vs[i]]) {
				rdfs(vs[i], k); k++;
			}
		}
		mk = k;
	}
	void query(int sz, int s) {
		vector<int> ans(s);
		rep(i, mk) {
			int cnt = 0;
			for (int id : ori[i]) {
				if (id >= sz - 1 && id < sz - 1 + s)cnt++;
			}
			for (int id : ori[i]) {
				if (id >= sz - 1 && id < sz - 1 + s) {
					ans[id - (sz - 1)] = cnt;
				}
			}
		}
		rep(i, s) {
			cout << ans[i] << "\n";
		}
	}
};
struct ste {
	int k, l, r;
};
void solve() {
	int n, a, b; cin >> n >> a >> b;
	vector<int> x(n);
	rep(i, n)cin >> x[i];
	int sz = 1;
	while (sz < n)sz *= 2;
	graph g(2 * sz - 1);
	rep(i, sz - 1) {
		g.add_edge(i, 2 * i + 1);
		g.add_edge(i, 2 * i + 2);
	}
	auto add = [&](int fr,int a, int b) {
		vector<ste> v;
		v.push_back(ste{ 0,0,sz });
		while (!v.empty()) {
			ste s = v.back(); v.pop_back();
			if (s.r <= a || b <= s.l)continue;
			if (a <= s.l && s.r <= b) {
				g.add_edge(fr, s.k);
			}
			else {
				v.push_back({ s.k * 2 + 1,s.l,(s.l + s.r) / 2 });
				v.push_back({ s.k * 2 + 2,(s.l + s.r) / 2,s.r });
			}
		}
	};
	rep(i, n) {
		int le = lower_bound(all(x), x[i] - b) - x.begin();
		int ri = upper_bound(all(x), x[i] - a) - x.begin();
		add(i + sz - 1, le, ri);

		le = lower_bound(all(x), x[i] + a) - x.begin();
		ri = upper_bound(all(x), x[i] + b) - x.begin();
		add(i + sz - 1, le, ri);
	}
	g.scc();
	g.query(sz,n);
}





signed main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	//cout << fixed << setprecision(10);
	//init_f();
	//init();
	//expr();
	//int t; cin >> t; rep(i, t)
	solve();
	return 0;
}