Submission #549290

# Submission time Handle Problem Language Result Execution time Memory
549290 2022-04-15T14:14:38 Z Bungmint trapezoid (balkan11_trapezoid) C++17
100 / 100
200 ms 21552 KB
//Copyright © 2022 Youngmin Park. All rights reserved.
//#pragma GCC optimize("O3")
//#pragma GCC target("avx2")
#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using vi = vector<int>;
using pii = pair<int, int>;
using vpi = vector<pii>;
using pll = pair<ll, ll>;
using vl = vector<ll>;
using vpl = vector<pll>;
using ld = long double;
template <typename T, size_t SZ>
using ar = array<T, SZ>;

#define all(v) (v).begin(), (v).end()
#define pb push_back
#define sz(x) (int)(x).size()
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define F0R(i, a) FOR(i, 0, a)
#define ROF(i, a, b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i, a) ROF(i, 0, a)
#define REP(a) F0R(_, a)

const int INF = 1e9;
const ll LINF = 1e18;
const int MOD = 1e9 + 7; //998244353;
const ld PI = acos((ld)-1.0);
const int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
template <typename T>
using pqg = priority_queue<T, vector<T>, greater<T>>;
template <typename T>
bool ckmin(T &a, const T &b) { return b < a ? a = b, 1 : 0; }
template <typename T>
bool ckmax(T &a, const T &b) { return b > a ? a = b, 1 : 0; }

template <typename A, typename B>
ostream &operator<<(ostream &os, const pair<A, B> &p)
{
    return os << '(' << p.first << ", " << p.second << ')';
}
template <typename T_container, typename T = typename enable_if<!is_same<T_container, string>::value, typename T_container::value_type>::type>
ostream &operator<<(ostream &os, const T_container &v)
{
    os << '{';
    string sep;
    for (const T &x : v)
        os << sep << x, sep = ", ";
    return os << '}';
}
void dbg_out()
{
    cerr << endl;
}
template <typename Head, typename... Tail>
void dbg_out(Head H, Tail... T)
{
    cerr << ' ' << H;
    dbg_out(T...);
}
#ifdef LOCAL
#define dbg(...) cerr << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)
#else
#define dbg(...) 42
#endif

inline namespace RecursiveLambda{
	template <typename Fun>
	struct y_combinator_result{
		Fun fun_;
		template <typename T> 
		explicit y_combinator_result(T &&fun): fun_(forward<T>(fun)){}
		template <typename...Args>
		decltype(auto) operator()(Args &&...args){
			return fun_(ref(*this), forward<Args>(args)...);
		}
	};
	template <typename Fun>
	decltype(auto) y_combinator(Fun &&fun){
		return y_combinator_result<decay_t<Fun>>(forward<Fun>(fun));
	}
};

void setIO(string s) // USACO
{
	#ifndef LOCAL
	    freopen((s + ".in").c_str(), "r", stdin);
	    freopen((s + ".out").c_str(), "w", stdout);
	#endif
}

template<typename T, typename Merge = plus<T>>
struct SegTree{
	int sz;
	const Merge merge;
	vector<T> t;
	SegTree(int n) : merge(Merge()) {
		sz = 1;
		while (sz<n) sz*=2;
		t.resize(sz*2);
	}
	void build(vector<T> &vec, int x, int l, int r)
	{
	    if (r - l == 1)
	    {
	        if (l < (int)vec.size())
	            t[x] = vec[l];
	        return;
	    }
	    int mid = (l + r) / 2;
	    build(vec, 2 * x + 1, l, mid);
	    build(vec, 2 * x + 2, mid, r);
	    t[x] = merge(t[2 * x + 1], t[2 * x + 2]);
	}
	void build(vector<T> &vec)
	{
	    build(vec, 0, 0, sz);
	}
	void upd(int i, const T& v, int x, int l, int r)
	{
	    if (r - l == 1)
	    {
	        t[x] = v;
	        return;
	    }
	    int mid = (l + r) / 2;
	    if (i < mid)
	        upd(i, v, 2 * x + 1, l, mid);
	    else
	        upd(i, v, 2 * x + 2, mid, r);
	    t[x] = merge(t[2 * x + 1], t[2 * x + 2]);
	}
	void upd(int i, const T& v)
	{
	    upd(i, v, 0, 0, sz);
	}
	T query(int l, int r, int x, int lx, int rx)
	{
	    if (lx >= r || rx <= l)
	        return T();
	    if (lx >= l && rx <= r)
	        return t[x];
	    int mid = (lx + rx) / 2;
	    T a = query(l, r, 2 * x + 1, lx, mid);
	    T b = query(l, r, 2 * x + 2, mid, rx);
	    return merge(a, b);
	}
	T query(int l, int r)
	{
	    return query(l, r, 0, 0, sz);
	}
};

#define int long long
const int mod = 30013;
struct Node {
	int mx, cnt;
	Node(int x = 0, int c = 0) : mx(x), cnt(c) {}
	Node operator+(const Node& other) const {
		Node res = {};
		if (mx == other.mx) res.mx = mx, res.cnt = (cnt + other.cnt) % mod;
		else{
			if (mx > other.mx) res = *this;
			else res = other;
		}
		return res;
	}
};


vi xs, ys;
void insert_x(int x) {
	xs.pb(x);
}
void insert_y(int x) {
	ys.pb(x);
}
int get_x(int x) {
	return lb(all(xs), x) - xs.begin();
}
int get_y(int y) {
	return lb(all(ys), y) - ys.begin();
}
pii conv_x(pii a) {
	return {get_x(a.fi), get_x(a.se)};
}
pii conv_y(pii b) {
	return {get_y(b.fi), get_y(b.se)};
}

void solve()
{
	int n;
	cin >> n;
	vector<pair<pii, pii>> a(n);
	vector<ar<int, 4>> todo;
	vector<Node> b(n);
	SegTree<Node> seg(2 * n + 2);
	for (auto &[x, y] : a) {
		cin >> x.fi >> x.se >> y.fi >> y.se;
		insert_x(x.fi), insert_x(x.se);
		insert_y(y.fi), insert_y(y.se);
	}
	insert_x(0); insert_y(0);
	insert_x(INF + 1), insert_y(INF + 1);
	sort(all(xs)), xs.resize(unique(all(xs)) - xs.begin());
	sort(all(ys)), ys.resize(unique(all(ys)) - ys.begin());
	dbg(sz(xs), sz(ys));
	F0R(i, n) {
		auto &[x, y] = a[i];
		x = conv_x(x), y = conv_y(y);
		todo.pb({x.fi, y.fi, 1, i});
		todo.pb({x.se, y.se, -1, i});
	}
	seg.upd(0, Node(0, 1));
	sort(all(todo));
	for (auto &[x, y, t, id] : todo) {
		if (t == -1) {
			seg.upd(y, b[id]);
		}else{
			b[id] = seg.query(0, y);
			b[id].mx++;
		}
	}
	Node ans = seg.query(0, 2 * n + 2);
	cout << ans.mx << ' ' << ans.cnt << '\n';
}

int32_t main()
{
    cin.tie(0)->sync_with_stdio(0);
    cin.exceptions(cin.failbit);
    int testcase=1;
    // cin >> testcase;	
    while (testcase--)
    {
        solve();
    }
}

Compilation message

trapezoid.cpp: In function 'void solve()':
trapezoid.cpp:71:18: warning: statement has no effect [-Wunused-value]
   71 | #define dbg(...) 42
      |                  ^~
trapezoid.cpp:215:2: note: in expansion of macro 'dbg'
  215 |  dbg(sz(xs), sz(ys));
      |  ^~~
trapezoid.cpp: In function 'void setIO(std::string)':
trapezoid.cpp:94:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   94 |      freopen((s + ".in").c_str(), "r", stdin);
      |      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
trapezoid.cpp:95:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   95 |      freopen((s + ".out").c_str(), "w", stdout);
      |      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 2 ms 408 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 3 ms 724 KB Output is correct
6 Correct 4 ms 1108 KB Output is correct
7 Correct 6 ms 1124 KB Output is correct
8 Correct 8 ms 1744 KB Output is correct
9 Correct 14 ms 2996 KB Output is correct
10 Correct 31 ms 5624 KB Output is correct
11 Correct 34 ms 5776 KB Output is correct
12 Correct 83 ms 10924 KB Output is correct
13 Correct 102 ms 11480 KB Output is correct
14 Correct 117 ms 20140 KB Output is correct
15 Correct 124 ms 20324 KB Output is correct
16 Correct 137 ms 20608 KB Output is correct
17 Correct 138 ms 20884 KB Output is correct
18 Correct 130 ms 21088 KB Output is correct
19 Correct 162 ms 21400 KB Output is correct
20 Correct 200 ms 21552 KB Output is correct