oj.uz

답안 #541172

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
541172 2022-03-22T14:26:22 Z akhan42 Zoltan (COCI16_zoltan) C++17
140 / 140
 185 ms 8384 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>

using namespace std;
//using namespace __gnu_pbds;

#define F first
#define S second
#define forn(i, n) for(int i = 0; i < n; ++i)
#define forbn(i, b, n) for(int i = b; i < n; ++i)
#define sz(v) (int)v.size()
#define pb push_back
#define mp make_pair
#define eb emplace_back
#define all(v) v.begin(), v.end()
#define min3(a, b, c) min(a, min(b, c))

typedef pair<int, int> ii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef long long ll;
//typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

template <class T> inline void mineq(T &a, T b) { a = min(a, b); }
template <class T> inline void maxeq(T &a, T b) { a = max(a, b); }


const int MX = 200 * 1000 + 5;
int mod = 1000 * 1000 * 1000 + 7;
vi indexes, a;


int mult(int a, int b) {
	return 1ll * a * b % mod;
}

int add(int a, int b) {
	return (a + b) % mod;
}

int binpow(int x, int deg) {
	int r = 1;
	for(; deg; deg >>= 1, x = mult(x, x))
		if(deg & 1)
			r = mult(r, x);
	return r;
}


struct Node {
	int d = 0, ct = 0;

	Node() {}

	Node(int d, int ct): d(d), ct(ct) {}

	static Node comb(Node a, Node b) {
		if(a.d < b.d) {
			return b;
		}
		else if(a.d == b.d) {
			return Node(a.d, add(a.ct, b.ct));
		}
		else {
			return a;
		}
	}

	void addm(int de, int cte) {
		d += de;
		ct = add(ct, cte);
	}
};


struct Seg {
	int n;
	vector<Node> mx;

	Seg(int n): n(n) {
		mx.resize(2 * n);
	}

	Node query(int l, int r) {
		Node res;
		for(l += n, r += n + 1; l < r; l >>= 1, r >>= 1) {
			if(l & 1) res = Node::comb(res, mx[l++]);
			if(r & 1) res = Node::comb(res, mx[--r]);
		}
		return res;
	}

	void update(int p, Node v) {
		mx[p += n] = v;
		for(; p > 1; p >>= 1) {
			mx[p >> 1] = Node::comb(mx[p], mx[p ^ 1]);
		}
	}

	Node at(int i) {
		return query(i, i);
	}
};


bool cmp1(int i, int j) {
	return mp(-a[i], i) < mp(-a[j], j);
}


bool cmp2(int i, int j) {
	return mp(a[i], i) < mp(a[j], j);
}


void solve() {
	int n;
	cin >> n;
	a.resize(n);
	forn(i, n) {
		cin >> a[i];
		indexes.pb(i);
	}
	sort(all(indexes), cmp1);
	Seg seg(n);

	for(int i: indexes) {
		Node q = seg.query(i, n - 1);
		q.addm(1, q.d == 0 ? 1 : 0);
		seg.update(i, q);
	}

	sort(all(indexes), cmp2);
	Seg seg2(n);

	int ad = -1, act = 0;
	for(int i: indexes) {
		Node q = seg2.query(i, n - 1);
		q.addm(1, q.d == 0 ? 1 : 0);
		seg2.update(i, q);

		Node q2 = seg.at(i);
		int dep = q.d + q2.d - 1, ct = mult(q.ct, q2.ct);
		ct = mult(ct, binpow(2, n - dep));

		if(dep > ad)
			ad = dep, act = ct;
		else if(dep == ad)
			act = add(act, ct);
	}

	cout << ad << ' ' << act << '\n';
}


int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	cout.tie(nullptr);

//	freopen("slingshot.in", "r", stdin);
//	freopen("slingshot.out", "w", stdout);

	int t = 1;
//	cin >> t;
	while(t--) {
		solve();
	}
}

Subtask #1
140.0 / 140.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 153 ms 6528 KB Output is correct
12 Correct 112 ms 5892 KB Output is correct
13 Correct 104 ms 5420 KB Output is correct
14 Correct 140 ms 5960 KB Output is correct
15 Correct 173 ms 7036 KB Output is correct
16 Correct 185 ms 8220 KB Output is correct
17 Correct 148 ms 8352 KB Output is correct
18 Correct 160 ms 8160 KB Output is correct
19 Correct 158 ms 8284 KB Output is correct
20 Correct 153 ms 8384 KB Output is correct