#605580 (C++14) No.1347 HS Railway

提出ソース

結果

問題	No.1347 HS Railway
ユーザー	Kite_kuma
提出日時	2021-01-16 14:04:02
言語	C++14 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	64 ms / 2,000 ms
コード長	12,584 bytes
コンパイル時間	2,337 ms
コンパイル使用メモリ	183,940 KB
実行使用メモリ	9,396 KB
最終ジャッジ日時	2024-05-05 16:14:35
合計ジャッジ時間	6,212 ms
ジャッジサーバーID （参考情報）	judge3 / judge2

このコードへのチャレンジ
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テストケース

テストケース表示

入力	結果	実行時間実行使用メモリ
testcase_00	AC	2 ms 6,816 KB
testcase_01	AC	2 ms 6,940 KB
testcase_02	AC	2 ms 6,944 KB
testcase_03	AC	3 ms 6,940 KB
testcase_04	AC	2 ms 6,940 KB
testcase_05	AC	2 ms 6,944 KB
testcase_06	AC	2 ms 6,940 KB
testcase_07	AC	2 ms 6,940 KB
testcase_08	AC	2 ms 6,944 KB
testcase_09	AC	2 ms 6,940 KB
testcase_10	AC	2 ms 6,944 KB
testcase_11	AC	2 ms 6,940 KB
testcase_12	AC	21 ms 6,940 KB
testcase_13	AC	16 ms 6,940 KB
testcase_14	AC	9 ms 6,940 KB
testcase_15	AC	12 ms 6,940 KB
testcase_16	AC	22 ms 6,944 KB
testcase_17	AC	5 ms 6,944 KB
testcase_18	AC	35 ms 6,944 KB
testcase_19	AC	31 ms 6,940 KB
testcase_20	AC	29 ms 6,940 KB
testcase_21	AC	14 ms 6,944 KB
testcase_22	AC	37 ms 7,264 KB
testcase_23	AC	33 ms 6,940 KB
testcase_24	AC	15 ms 6,940 KB
testcase_25	AC	25 ms 6,944 KB
testcase_26	AC	35 ms 6,940 KB
testcase_27	AC	21 ms 6,940 KB
testcase_28	AC	36 ms 8,128 KB
testcase_29	AC	38 ms 6,984 KB
testcase_30	AC	35 ms 6,940 KB
testcase_31	AC	31 ms 6,944 KB
testcase_32	AC	41 ms 6,944 KB
testcase_33	AC	46 ms 7,644 KB
testcase_34	AC	43 ms 7,332 KB
testcase_35	AC	45 ms 7,240 KB
testcase_36	AC	44 ms 7,360 KB
testcase_37	AC	49 ms 8,108 KB
testcase_38	AC	48 ms 7,608 KB
testcase_39	AC	48 ms 8,252 KB
testcase_40	AC	41 ms 6,940 KB
testcase_41	AC	41 ms 6,944 KB
testcase_42	AC	60 ms 8,724 KB
testcase_43	AC	46 ms 7,340 KB
testcase_44	AC	49 ms 7,292 KB
testcase_45	AC	47 ms 7,168 KB
testcase_46	AC	54 ms 8,024 KB
testcase_47	AC	57 ms 7,868 KB
testcase_48	AC	64 ms 9,396 KB
testcase_49	AC	54 ms 8,180 KB
testcase_50	AC	60 ms 8,864 KB
testcase_51	AC	53 ms 7,884 KB

権限があれば一括ダウンロードができます

ソースコード

raw source code

/*	author:  Kite_kuma
	created: 2021.01.16 13:12:04 */

// #ifdef LOCAL
// #define _GLIBCXX_DEBUG
// #endif
#include <bits/stdc++.h>
using namespace std;

#pragma region macros

#define foa(s, v) for(auto &s : v)
#define all(v) (v).begin(), (v).end()
#define rall(v) (v).rbegin(), (v).rend()
#define popcnt(n) __builtin_popcountll((long long)n)

#define REPname(a, b, c, d, e, ...) e
#define rep(...) REPname(__VA_ARGS__, REP3, REP2, REP1, REP0)(__VA_ARGS__)
#define REP0(x) for(int Counter_in_rep_macro = 0; Counter_in_rep_macro < (x); ++Counter_in_rep_macro)
#define REP1(i, x) for(int i = 0; i < (x); ++i)
#define REP2(i, l, r) for(int i = (l); i < (r); ++i)
#define REP3(i, l, r, c) for(int i = (l); i < (r); i += (c))

#define DREPname(a, b, c, d, e, ...) e
#define drep(...) DREPname(__VA_ARGS__, DREP3, DREP2, DREP1)(__VA_ARGS__)
#define DREP1(i, x) for(int i = (x)-1; i >= 0; --i)
#define DREP2(i, l, r) for(int i = (r)-1; i >= (l); --i)
#define DREP3(i, l, r, c) for(int i = (r)-1; i >= (l); i -= (c))

#pragma endregion

#pragma region aliases

using ll = long long;
using ld = long double;
using ull = unsigned long long;
using vb = vector<bool>;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using vvvi = vector<vector<vector<int>>>;
using vll = vector<ll>;
using vvll = vector<vll>;
using vvvll = vector<vvll>;
using pii = std::pair<int, int>;
using pll = std::pair<long long, long long>;
template <class T = ll>
using V = vector<T>;
template <class T = ll>
using VV = V<V<T>>;
template <class T = ll>
using VVV = V<V<V<T>>>;
template <class T = ll>
using pqup = priority_queue<T, vector<T>, greater<T>>;
template <class T = ll>
using pqdn = priority_queue<T>;

#pragma endregion

#pragma region constants

const int inf = 1e9;
const long long INF = 1e18;
const long double pi = acos(-1);
const char dl = '\n';
const char sp = ' ';
int dx[8] = {1, 0, -1, 0, 1, -1, -1, 1};
int dy[8] = {0, 1, 0, -1, 1, 1, -1, -1};

const int mod = 1000000007;
// const int mod = 998244353;

#pragma endregion

#pragma region basic_operation

template <class T>
inline bool in_range(T x, T lef, T rig) {
	return ((lef <= x) && (x < rig));
}

template <class T>
inline bool chmin(T &a, T b) {
	if(a > b) {
		a = b;
		return true;
	}
	return false;
}
template <class T>
inline bool chmax(T &a, T b) {
	if(a < b) {
		a = b;
		return true;
	}
	return false;
}

void Yes(bool f = 1) { cout << (f ? "Yes" : "No") << '\n'; }
void No() { cout << "No\n"; }
void YES(bool f = 1) { cout << (f ? "YES" : "NO") << '\n'; }
void NO() { cout << "NO\n"; }

template <class T>
void drop(T answer) {
	cout << answer << '\n';
	exit(0);
}

void err(bool flag = true) {
	if(!flag) return;
	cout << -1 << '\n';
	exit(0);
}

template <class T>
void vout(vector<T> const &v, bool tate = 0) {
	if(tate) {
		for(auto const &a : v) {
			cout << a << '\n';
		}
		return;
	}
	for(auto it = v.begin(); it != v.end(); it++) {
		cout << (*it);
		if(it != v.end() - 1) {
			cout << ' ';
		}
	}
	cout << '\n';
	return;
}

inline void print() { cout << '\n'; }
template <class T>
inline void print(T x) {
	cout << x << '\n';
	return;
}
template <typename Head, typename... Tail>
void print(Head H, Tail... T) {
	cout << H << " ";
	print(T...);
}

template <class T>
void add(vector<T> &v, T val) {
	for(auto &a : v) a += val;
	return;
}

template <class T>
T dup(T a, T b) {
	assert(b != 0);
	return (a + b - 1) / b;
}

template <class T>
T greatest_lower_multiple(T x, T d) {
	if(d == 0) return 0;
	if(d < 0) d *= -1;
	T y = x % d;
	if(y < 0) y += d;
	return x - y;
}

template <class T>
T least_upper_multiple(T x, T d) {
	return -greatest_lower_multiple(-x, d);
}

long long POW(long long a, long long n) {
	long long res = 1;
	while(n > 0) {
		if(n & 1) res = res * a;
		a = a * a;
		n >>= 1;
	}
	return res;
}

long long modpow(long long a, long long n, long long mod) {	 // a^n mod
	assert(n >= 0);
	if(mod == 1) return 0LL;
	long long res = 1;
	while(n > 0) {
		if(n & 1) res = res * a % mod;
		a = a * a % mod;
		n >>= 1;
	}
	return res;
}

// return x such that a * x % mod == gcd(a, mod)
// not (mod divides a)
long long modinv(long long a, long long mod) {
	long long b = mod, u = 1, v = 0;
	while(b) {
		long long t = a / b;
		a -= t * b;
		swap(a, b);
		u -= t * v;
		swap(u, v);
	}
	u %= mod;
	if(u < 0) u += mod;
	return u;
}

// normal binomial coefficient
vvll comb(100, vll(100, -1));
long long com(long long n, long long k) {
	assert(n < 100 && k < 100);
	if(n < k || k < 0 || n < 0) return 0;
	if(comb[n][k] != -1) return comb[n][k];
	ll res;
	if(n - k < k)
		res = com(n, n - k);
	else if(k == 0)
		res = 1;
	else
		res = com(n - 1, k - 1) + com(n - 1, k);
	comb[n][k] = res;
	return res;
}

const int MAX = 5100000;  // 300ms, when MAX = 3*10^7 : 1900ms
long long fac[MAX], finv[MAX], inv[MAX];

void cominit() {
	fac[0] = fac[1] = 1;
	finv[0] = finv[1] = 1;
	inv[1] = 1;
	for(int i = 2; i < MAX; i++) {
		fac[i] = fac[i - 1] * i % mod;
		inv[i] = mod - inv[mod % i] * (mod / i) % mod;
		finv[i] = finv[i - 1] * inv[i] % mod;
	}
}
long long commod(long long n, long long k) {
	if(n < k) return 0;
	if(n < 0 || k < 0) return 0;
	return fac[n] * (finv[k] * finv[n - k] % mod) % mod;
}
long long pmod(long long n, long long k) {
	if(n < k) return 0;
	if(n < 0 || k < 0) return 0;
	return fac[n] * finv[n - k] % mod;
}
// n個の区別しないボールを区別するk個の箱に入れる方法の総数
long long hmod(long long n, long long k) {	// 重複組み合わせ
	return commod(n + k - 1, n);
}

template <class T>
int lb(const std::vector<T> &a, const T x) {
	return std::distance(a.begin(), std::lower_bound(a.begin(), a.end(), x));
}
template <class T>
int ub(const std::vector<T> &a, const T x) {
	return std::distance(a.begin(), std::upper_bound(a.begin(), a.end(), x));
}
template <class T>
void unq(std::vector<T> &a) {
	std::sort(a.begin(), a.end());
	a.erase(std::unique(a.begin(), a.end()), a.end());
}
template <class T>
std::vector<int> press(std::vector<T> &a) {
	auto vec = a;
	unq(vec);
	std::vector<int> ret;
	for(auto &v : a) ret.push_back(lb(vec, v));
	return ret;
}

#pragma endregion

#pragma region input
#define VEC(type, name, size) \
	vector<type> name(size);  \
	scanner::INPUT(name)
#define VVEC(type, name, h, w)                     \
	vector<vector<type>> name(h, vector<type>(w)); \
	scanner::INPUT(name)
#define INT(...)     \
	int __VA_ARGS__; \
	scanner::INPUT(__VA_ARGS__)
#define LL(...)            \
	long long __VA_ARGS__; \
	scanner::INPUT(__VA_ARGS__)
#define STR(...)        \
	string __VA_ARGS__; \
	scanner::INPUT(__VA_ARGS__)
#define CHR(...)      \
	char __VA_ARGS__; \
	scanner::INPUT(__VA_ARGS__)
#define DBL(...)        \
	double __VA_ARGS__; \
	scanner::INPUT(__VA_ARGS__)
#define LD(...)              \
	long double __VA_ARGS__; \
	scanner::INPUT(__VA_ARGS__)

namespace scanner {
template <class T>
void scan(T &a) {
	cin >> a;
}
template <class T>
void scan(vector<T> &a) {
	for(auto &i : a) scan(i);
}
template <class T, class L>
void scan(pair<T, L> &p) {
	scan(p.first);
	scan(p.second);
}
void INPUT() {}
template <class Head, class... Tail>
void INPUT(Head &head, Tail &...tail) {
	scan(head);
	INPUT(tail...);
}
}  // namespace scanner

template <typename T1, typename T2>
istream &operator>>(istream &is, pair<T1, T2> &p) {
	is >> p.first >> p.second;
	return is;
}
#pragma endregion

#pragma region debug

#pragma region output
template <typename T1, typename T2>
std::ostream &std::operator<<(std::ostream &os, const std::pair<T1, T2> &p) {
	os << p.first << " " << p.second;
	return os;
}
template <class T>
std::ostream &std::operator<<(std::ostream &os, const std::vector<T> &v) {
	for(int i = 0; i < (int)v.size(); i++) {
		if(i) os << " ";
		os << v[i];
	}
	return os;
}
#pragma endregion

#pragma region view

namespace viewer {
template <typename T>
void view(const T e) {
	std::cerr << e;
}

template <typename T, typename U>
void view(const std::pair<T, U> &p) {
	std::cerr << "(";
	view(p.first);
	std::cerr << ", ";
	view(p.second);
	std::cerr << ")";
}

template <typename T>
void view(const std::set<T> &s) {
	if(s.empty()) {
		std::cerr << "{ }";
		return;
	}
	std::cerr << "{ ";
	for(auto &t : s) {
		view(t);
		std::cerr << ", ";
	}
	std::cerr << "\b\b }";
}

template <typename T>
void view(const std::unordered_set<T> &s) {
	if(s.empty()) {
		std::cerr << "{ }";
		return;
	}
	std::cerr << "{ ";
	for(auto &t : s) {
		view(t);
		std::cerr << ", ";
	}
	std::cerr << "\b\b }";
}

template <typename T>
void view(const std::vector<T> &v) {
	if(v.empty()) {
		std::cerr << "{ }";
		return;
	}
	std::cerr << "{ ";
	for(const auto &e : v) {
		view(e);
		std::cerr << ", ";
	}
	std::cerr << "\b\b }";
}

template <typename T>
void view(const std::vector<std::vector<T>> &vv) {
	std::cerr << "{\n";
	for(const auto &v : vv) {
		std::cerr << "\t";
		view(v);
		std::cerr << '\n';
	}
	std::cerr << "}";
}

template <typename T, typename U>
void view(const std::vector<std::pair<T, U>> &v) {
	std::cerr << "{\n";
	for(const auto &c : v) {
		std::cerr << "\t(";
		view(c.first);
		std::cerr << ", ";
		view(c.second);
		std::cerr << ")\n";
	}
	std::cerr << "}";
}

template <typename T, typename U>
void view(const std::map<T, U> &m) {
	std::cerr << "{\n";
	for(const auto &t : m) {
		std::cerr << "\t[";
		view(t.first);
		std::cerr << "] : ";
		view(t.second);
		std::cerr << '\n';
	}
	std::cerr << "}";
}

template <typename T, typename U>
void view(const std::unordered_map<T, U> &m) {
	std::cerr << "{\n";
	for(const auto &t : m) {
		std::cerr << "\t[";
		view(t.first);
		std::cerr << "] : ";
		view(t.second);
		std::cerr << '\n';
	}
	std::cerr << "}";
}
}  // namespace viewer

#pragma endregion

// when debugging : g++ foo.cpp -DLOCAL
#ifdef LOCAL
void debug_out() {}
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
	viewer::view(H);
	std::cerr << ", ";
	debug_out(T...);
}
#define debug(...)                                                \
	do {                                                          \
		std::cerr << __LINE__ << " [" << #__VA_ARGS__ << "] : ["; \
		debug_out(__VA_ARGS__);                                   \
		std::cerr << "\b\b]\n";                                   \
	} while(0)
#define dump(x)                                      \
	do {                                             \
		std::cerr << __LINE__ << " " << #x << " : "; \
		view(x);                                     \
		std::cerr << '\n';                           \
	} while(0)

#else
#define debug(...) (void(0))
#define dump(x) (void(0))
#endif

#pragma endregion

template <class T>	// WarshallFloyd
void warshall(vector<vector<T>> &v, T dekai = numeric_limits<T>::max()) {
	// https://onlinejudge.u-aizu.ac.jp/status/users/Kite_kuma/submissions/1/GRL_1_C/judge/4817090/C++14
	int n = v.size();
	for(int i = 0; i < n; i++)
		for(int j = 0; j < n; j++)
			for(int k = 0; k < n; k++) {
				if(v[j][i] == dekai || v[i][k] == dekai) continue;
				v[j][k] = min(v[j][k], v[j][i] + v[i][k]);
			}
	return;
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	cout << fixed << setprecision(15);
	srand((unsigned)time(NULL));
	INT(n);
	int k = 5;
	V<pii> lr(k);
	VV<ll> a(k);
	rep(i, k) {
		cin >> lr[i];
		lr[i].first--;
		lr[i].second--;
		rep(j, lr[i].second - lr[i].first) {
			LL(t);
			a[i].push_back(t);
		}
	}

	vvll acc_a(k);
	rep(i, k) {
		acc_a[i] = {0};
		foa(t, a[i]) { acc_a[i].push_back(acc_a[i].back() + t); }
	}

	vvll zure_max(k, vll(k, -INF));
	vvll zure_min(k, vll(k, INF));

	rep(i, k) rep(j, i + 1, k) {
		int start = max(lr[i].first, lr[j].first);
		int goal = min(lr[i].second, lr[j].second);
		if(start > goal) continue;

		ll pre_time_i = acc_a[i][start-lr[i].first] - acc_a[i][lr[i].first-lr[i].first];
		ll pre_time_j = acc_a[j][start-lr[j].first] - acc_a[j][lr[j].first-lr[j].first];
		ll cost_time_i = -acc_a[i][start-lr[i].first] + acc_a[i][goal-lr[i].first];
		ll cost_time_j = -acc_a[j][start-lr[j].first] + acc_a[j][goal-lr[j].first];
		debug(cost_time_i, cost_time_j);
		assert(cost_time_j >= cost_time_i);
		pre_time_i -= pre_time_j;

		zure_max[i][j] = pre_time_i;
		zure_min[i][j] = pre_time_i + cost_time_i - cost_time_j;
	}

	vvll trains(k);
	INT(m);
	rep(m) {
		INT(b);
		LL(s);
		b--;
		trains[b].push_back(s);
	}

	foa(t, trains) sort(all(t));

	auto solve = [&](int i, int j, ll start_time) -> ll {
		return (ll)(ub(trains[j], start_time + zure_max[i][j]) - lb(trains[j], start_time + zure_min[i][j]));
	};

	ll ans = 0;
	rep(i, k) foa(train, trains[i]) {
		rep(j, i + 1, k) { ans += max(0LL, solve(i, j, train)); }
	}
	print(ans);
}

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結果

テストケース

ソースコード