#705572 (C++17) No.1703 Much Matching

提出ソース

結果

問題	No.1703 Much Matching
ユーザー	nok0
提出日時	2021-10-08 22:15:12
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	RE
実行時間	-
コード長	13,190 bytes
コンパイル時間	2,569 ms
コンパイル使用メモリ	214,052 KB
実行使用メモリ	23,168 KB
最終ジャッジ日時	2024-07-23 04:43:12
合計ジャッジ時間	6,904 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
（要ログイン）

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 5,248 KB
testcase_01	RE	-
testcase_02	AC	2 ms 5,376 KB
testcase_03	RE	-
testcase_04	RE	-
testcase_05	RE	-
testcase_06	AC	102 ms 10,368 KB
testcase_07	AC	7 ms 5,376 KB
testcase_08	AC	106 ms 10,496 KB
testcase_09	AC	120 ms 11,008 KB
testcase_10	AC	17 ms 5,376 KB
testcase_11	AC	26 ms 5,376 KB
testcase_12	AC	6 ms 5,376 KB
testcase_13	AC	44 ms 5,632 KB
testcase_14	AC	3 ms 5,376 KB
testcase_15	AC	21 ms 5,376 KB
testcase_16	AC	65 ms 7,296 KB
testcase_17	AC	74 ms 7,552 KB
testcase_18	AC	3 ms 5,376 KB
testcase_19	AC	157 ms 12,384 KB
testcase_20	AC	20 ms 5,376 KB
testcase_21	AC	184 ms 13,312 KB
testcase_22	AC	71 ms 7,296 KB
testcase_23	AC	54 ms 6,784 KB
testcase_24	AC	3 ms 5,376 KB
testcase_25	AC	8 ms 5,376 KB
testcase_26	AC	34 ms 5,376 KB
testcase_27	AC	78 ms 7,808 KB
testcase_28	AC	150 ms 12,156 KB
testcase_29	AC	28 ms 5,376 KB
testcase_30	AC	42 ms 5,504 KB
testcase_31	AC	5 ms 5,376 KB
testcase_32	AC	82 ms 7,808 KB
testcase_33	AC	54 ms 6,912 KB
testcase_34	AC	6 ms 5,376 KB
testcase_35	AC	15 ms 5,376 KB
testcase_36	AC	362 ms 23,168 KB
testcase_37	AC	2 ms 5,376 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

#line 1 "/Users/nok0/Documents/Programming/nok0/atcoder/segtree.hpp"

#include <algorithm>
#include <cassert>
#include <vector>

#line 1 "/Users/nok0/Documents/Programming/nok0/atcoder/internal_bit.hpp"

#ifdef _MSC_VER
#include <intrin.h>
#endif

namespace atcoder {

namespace internal {

// @param n `0 <= n`
// @return minimum non-negative `x` s.t. `n <= 2**x`
int ceil_pow2(int n) {
	int x = 0;
	while((1U << x) < (unsigned int)(n)) x++;
	return x;
}

// @param n `1 <= n`
// @return minimum non-negative `x` s.t. `(n & (1 << x)) != 0`
constexpr int bsf_constexpr(unsigned int n) {
	int x = 0;
	while(!(n & (1 << x))) x++;
	return x;
}

// @param n `1 <= n`
// @return minimum non-negative `x` s.t. `(n & (1 << x)) != 0`
int bsf(unsigned int n) {
#ifdef _MSC_VER
	unsigned long index;
	_BitScanForward(&index, n);
	return index;
#else
	return __builtin_ctz(n);
#endif
}

}  // namespace internal

}  // namespace atcoder

#line 9 "/Users/nok0/Documents/Programming/nok0/atcoder/segtree.hpp"

namespace atcoder {

template <class S, S (*op)(S, S), S (*e)()>
struct segtree {
public:
	segtree() : segtree(0) {}
	explicit segtree(int n) : segtree(std::vector<S>(n, e())) {}
	explicit segtree(const std::vector<S> &v) : _n(int(v.size())) {
		log = internal::ceil_pow2(_n);
		size = 1 << log;
		d = std::vector<S>(2 * size, e());
		for(int i = 0; i < _n; i++) d[size + i] = v[i];
		for(int i = size - 1; i >= 1; i--) {
			update(i);
		}
	}

	void set(int p, S x) {
		assert(0 <= p && p < _n);
		p += size;
		d[p] = x;
		for(int i = 1; i <= log; i++) update(p >> i);
	}

	S get(int p) const {
		assert(0 <= p && p < _n);
		return d[p + size];
	}

	S prod(int l, int r) const {
		assert(0 <= l && l <= r && r <= _n);
		S sml = e(), smr = e();
		l += size;
		r += size;

		while(l < r) {
			if(l & 1) sml = op(sml, d[l++]);
			if(r & 1) smr = op(d[--r], smr);
			l >>= 1;
			r >>= 1;
		}
		return op(sml, smr);
	}

	S all_prod() const { return d[1]; }

	template <bool (*f)(S)>
	int max_right(int l) const {
		return max_right(l, [](S x) { return f(x); });
	}
	template <class F>
	int max_right(int l, F f) const {
		assert(0 <= l && l <= _n);
		assert(f(e()));
		if(l == _n) return _n;
		l += size;
		S sm = e();
		do {
			while(l % 2 == 0) l >>= 1;
			if(!f(op(sm, d[l]))) {
				while(l < size) {
					l = (2 * l);
					if(f(op(sm, d[l]))) {
						sm = op(sm, d[l]);
						l++;
					}
				}
				return l - size;
			}
			sm = op(sm, d[l]);
			l++;
		} while((l & -l) != l);
		return _n;
	}

	template <bool (*f)(S)>
	int min_left(int r) const {
		return min_left(r, [](S x) { return f(x); });
	}
	template <class F>
	int min_left(int r, F f) const {
		assert(0 <= r && r <= _n);
		assert(f(e()));
		if(r == 0) return 0;
		r += size;
		S sm = e();
		do {
			r--;
			while(r > 1 && (r % 2)) r >>= 1;
			if(!f(op(d[r], sm))) {
				while(r < size) {
					r = (2 * r + 1);
					if(f(op(d[r], sm))) {
						sm = op(d[r], sm);
						r--;
					}
				}
				return r + 1 - size;
			}
			sm = op(d[r], sm);
		} while((r & -r) != r);
		return 0;
	}

private:
	int _n, size, log;
	std::vector<S> d;

	void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); }
};

}  // namespace atcoder

#line 1 "/Users/nok0/Documents/Programming/nok0/cftemp.hpp"
#include <bits/stdc++.h>
using namespace std;

#pragma region Macros
// rep macro
#define foa(v, a) for(auto &v : a)
#define REPname(a, b, c, d, e, ...) e
#define REP(...) REPname(__VA_ARGS__, REP3, REP2, REP1, REP0)(__VA_ARGS__)
#define REP0(x) for(int i = 0; i < (x); ++i)
#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 REPSname(a, b, c, ...) c
#define REPS(...) REPSname(__VA_ARGS__, REPS1, REPS0)(__VA_ARGS__)
#define REPS0(x) for(int i = 1; i <= (x); ++i)
#define REPS1(i, x) for(int i = 1; i <= (x); ++i)
#define RREPname(a, b, c, d, e, ...) e
#define RREP(...) RREPname(__VA_ARGS__, RREP3, RREP2, RREP1, RREP0)(__VA_ARGS__)
#define RREP0(x) for(int i = (x)-1; i >= 0; --i)
#define RREP1(i, x) for(int i = (x)-1; i >= 0; --i)
#define RREP2(i, r, l) for(int i = (r)-1; i >= (l); --i)
#define RREP3(i, r, l, c) for(int i = (r)-1; i >= (l); i -= (c))
#define RREPSname(a, b, c, ...) c
#define RREPS(...) RREPSname(__VA_ARGS__, RREPS1, RREPS0)(__VA_ARGS__)
#define RREPS0(x) for(int i = (x); i >= 1; --i)
#define RREPS1(i, x) for(int i = (x); i >= 1; --i)

// name macro
#define pb push_back
#define eb emplace_back
#define SZ(x) ((int)(x).size())
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define popcnt(x) __builtin_popcountll(x)
template <class T = int>
using V = std::vector<T>;
template <class T = int>
using VV = std::vector<std::vector<T>>;
template <class T>
using pqup = std::priority_queue<T, std::vector<T>, std::greater<T>>;
using ll = long long;
using ld = long double;
using int128 = __int128_t;
using pii = std::pair<int, int>;
using pll = std::pair<long long, long long>;

// input macro
template <class T, class U>
std::istream &operator>>(std::istream &is, std::pair<T, U> &p) {
	is >> p.first >> p.second;
	return is;
}
template <class T>
std::istream &operator>>(std::istream &is, std::vector<T> &v) {
	for(T &i : v) is >> i;
	return is;
}
std::istream &operator>>(std::istream &is, __int128_t &a) {
	std::string s;
	is >> s;
	__int128_t ret = 0;
	for(int i = 0; i < s.length(); i++)
		if('0' <= s[i] and s[i] <= '9')
			ret = 10 * ret + s[i] - '0';
	a = ret * (s[0] == '-' ? -1 : 1);
	return is;
}
namespace scanner {
void scan(int &a) { std::cin >> a; }
void scan(long long &a) { std::cin >> a; }
void scan(std::string &a) { std::cin >> a; }
void scan(char &a) { std::cin >> a; }
void scan(char a[]) { std::scanf("%s", a); }
void scan(double &a) { std::cin >> a; }
void scan(long double &a) { std::cin >> a; }
template <class T, class U>
void scan(std::pair<T, U> &p) { std::cin >> p; }
template <class T>
void scan(std::vector<T> &a) { std::cin >> a; }
void INPUT() {}
template <class Head, class... Tail>
void INPUT(Head &head, Tail &...tail) {
	scan(head);
	INPUT(tail...);
}
}  // namespace scanner
#define VEC(type, name, size)     \
	std::vector<type> name(size); \
	scanner::INPUT(name)
#define VVEC(type, name, h, w)                                    \
	std::vector<std::vector<type>> name(h, std::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(...)             \
	std::string __VA_ARGS__; \
	scanner::INPUT(__VA_ARGS__)
#define CHAR(...)     \
	char __VA_ARGS__; \
	scanner::INPUT(__VA_ARGS__)
#define DOUBLE(...)     \
	double __VA_ARGS__; \
	scanner::INPUT(__VA_ARGS__)
#define LD(...)              \
	long double __VA_ARGS__; \
	scanner::INPUT(__VA_ARGS__)

// output-macro
template <class T, class U>
std::ostream &operator<<(std::ostream &os, const std::pair<T, U> &p) {
	os << p.first << " " << p.second;
	return os;
}
template <class T>
std::ostream &operator<<(std::ostream &os, const std::vector<T> &a) {
	for(int i = 0; i < int(a.size()); ++i) {
		if(i) os << " ";
		os << a[i];
	}
	return os;
}
std::ostream &operator<<(std::ostream &dest, __int128_t &value) {
	std::ostream::sentry s(dest);
	if(s) {
		__uint128_t tmp = value < 0 ? -value : value;
		char buffer[128];
		char *d = std::end(buffer);
		do {
			--d;
			*d = "0123456789"[tmp % 10];
			tmp /= 10;
		} while(tmp != 0);
		if(value < 0) {
			--d;
			*d = '-';
		}
		int len = std::end(buffer) - d;
		if(dest.rdbuf()->sputn(d, len) != len) {
			dest.setstate(std::ios_base::badbit);
		}
	}
	return dest;
}
template <class T>
void print(const T a) { std::cout << a << '\n'; }
template <class Head, class... Tail>
void print(Head H, Tail... T) {
	std::cout << H << ' ';
	print(T...);
}
template <class T>
void printel(const T a) { std::cout << a << '\n'; }
template <class T>
void printel(const std::vector<T> &a) {
	for(const auto &v : a)
		std::cout << v << '\n';
}
template <class Head, class... Tail>
void printel(Head H, Tail... T) {
	std::cout << H << '\n';
	printel(T...);
}
void Yes(const bool b = true) { std::cout << (b ? "Yes\n" : "No\n"); }
void No() { std::cout << "No\n"; }
void YES(const bool b = true) { std::cout << (b ? "YES\n" : "NO\n"); }
void NO() { std::cout << "NO\n"; }
void err(const bool b = true) {
	if(b) {
		std::cout << "-1\n", exit(0);
	}
}

//debug macro
namespace debugger {
template <class T>
void view(const std::vector<T> &a) {
	std::cerr << "{ ";
	for(const auto &v : a) {
		std::cerr << v << ", ";
	}
	std::cerr << "\b\b }";
}
template <class T>
void view(const std::vector<std::vector<T>> &a) {
	std::cerr << "{\n";
	for(const auto &v : a) {
		std::cerr << "\t";
		view(v);
		std::cerr << "\n";
	}
	std::cerr << "}";
}
template <class T, class U>
void view(const std::vector<std::pair<T, U>> &a) {
	std::cerr << "{\n";
	for(const auto &p : a) std::cerr << "\t(" << p.first << ", " << p.second << ")\n";
	std::cerr << "}";
}
template <class T, class U>
void view(const std::map<T, U> &m) {
	std::cerr << "{\n";
	for(const auto &p : m) std::cerr << "\t[" << p.first << "] : " << p.second << "\n";
	std::cerr << "}";
}
template <class T, class U>
void view(const std::pair<T, U> &p) { std::cerr << "(" << p.first << ", " << p.second << ")"; }
template <class T>
void view(const std::set<T> &s) {
	std::cerr << "{ ";
	for(auto &v : s) {
		view(v);
		std::cerr << ", ";
	}
	std::cerr << "\b\b }";
}

template <class T>
void view(const T &e) { std::cerr << e; }
}  // namespace debugger
#ifdef LOCAL
void debug_out() {}
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
	debugger::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(false)
#else
#define debug(...) (void(0))
#endif

// vector macro
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 UNIQUE(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<T> press(std::vector<T> &a) {
	auto res = a;
	UNIQUE(res);
	for(auto &v : a)
		v = lb(res, v);
	return res;
}
#define SORTname(a, b, c, ...) c
#define SORT(...) SORTname(__VA_ARGS__, SORT1, SORT0, ...)(__VA_ARGS__)
#define SORT0(a) std::sort((a).begin(), (a).end())
#define SORT1(a, c) std::sort((a).begin(), (a).end(), [](const auto x, const auto y) { return x c y; })
template <class T>
void ADD(std::vector<T> &a, const T x = 1) {
	for(auto &v : a) v += x;
}
template <class T>
void SUB(std::vector<T> &a, const T x = 1) {
	for(auto &v : a) v -= x;
}
template <class T>
void MUL(std::vector<T> &a, const T x) {
	for(auto &v : a) v *= x;
}
template <class T>
void DIV(std::vector<T> &a, const T x) {
	for(auto &v : a) v /= x;
}
std::vector<std::pair<char, int>> rle(const string &s) {
	int n = s.size();
	std::vector<std::pair<char, int>> ret;
	for(int l = 0; l < n;) {
		int r = l + 1;
		for(; r < n and s[l] == s[r]; r++) {}
		ret.emplace_back(s[l], r - l);
		l = r;
	}
	return ret;
}
template <class T>
std::vector<std::pair<T, int>> rle(const std::vector<T> &v) {
	int n = v.size();
	std::vector<std::pair<T, int>> ret;
	for(int l = 0; l < n;) {
		int r = l + 1;
		for(; r < n and v[l] == v[r]; r++) {}
		ret.emplace_back(v[l], r - l);
		l = r;
	}
	return ret;
}

// math macro
template <class T, class U>
inline bool chmin(T &a, const U &b) { return a > b ? a = b, true : false; }
template <class T, class U>
inline bool chmax(T &a, const U &b) { return a < b ? a = b, true : false; }
template <class T>
T divup(T x, T y) { return (x + y - 1) / y; }
template <class T>
T POW(T a, long long n) {
	T ret = 1;
	while(n) {
		if(n & 1) ret *= a;
		a *= a;
		n >>= 1;
	}
	return ret;
}
// modpow
long long POW(long long a, long long n, const int mod) {
	long long ret = 1;
	a = (a % mod + mod) % mod;
	while(n) {
		if(n & 1) (ret *= a) %= mod;
		(a *= a) %= mod;
		n >>= 1;
	}
	return ret;
}

// others
struct fast_io {
	fast_io() {
		ios::sync_with_stdio(false);
		cin.tie(nullptr);
		cout << fixed << setprecision(15);
	}
} fast_io_;
const int inf = 1e9;
const ll INF = 1e18;
#pragma endregion

void main_();

int main() {
	main_();
	return 0;
}
#line 3 "b.cpp"

using S = int;
S op(S x, S y) {
	return max(x, y);
}
S e() { return 0; }

void main_() {
	INT(n, m, q);
	VEC(pii, ab, q);
	sort(all(ab), [](pii a, pii b) {
		if(a.first != b.first) return a.first < b.first;
		return a.second > b.second;
	});
	atcoder::segtree<S, op, e> seg(q + 1);
	for(auto [a, b] : ab) {
		int v = seg.prod(0, b);
		debug(a, b);
		seg.set(b, max(seg.get(b), v + 1));
	}
	print(seg.all_prod());
}

yukicoder

結果

テストケース

ソースコード