Submission #98514

#	Time	Username	Problem	Language	Result	Execution time	Memory
98514		thiago4532	Zoltan (COCI16_zoltan)	C++17	21 / 140	1078 ms	9984 KiB

zoltan

#include <bits/stdc++.h>
// #define int int64_t
#define int int64_t
 
using namespace std;
const int maxn = 1010;
int v[maxn], dp[maxn], dp2[maxn], i;
deque<int> dq;
int ct=0, n;
int qtd[maxn];

void backtracking(int i, deque<int> const& d){
	if(i == n){
		for(int i=0;i<n;i++)
			v[i] = d[i];
		memset(dp, 0, sizeof dp);
		memset(dp2, 0, sizeof dp2);

		dp[0] = 1;
		dp2[0] = 1;

		for(int i = 1; i < n; i++){
			dp[i] = dp2[i] = 1;

			for(int j = 0; j < i; j++)
				if(v[j] < v[i]) dp[i] = max(dp[i], dp[j] + 1);

			if(dp[i] == 1) continue;

			dp2[i] = 0;
			for(int j = 0; j < i; j++)
				if(v[j] < v[i] && dp[j] + 1 == dp[i]) dp2[i] += dp2[j];
		}

		int a = 0, b = 0;

		for(int i=0;i<n;i++){
			if(dp[i] > a){
				a = dp[i];
			}
		}
		for(int i=0;i<n;i++){
			if(dp[i] == a) b += dp2[i];
		}
		qtd[a] += b;
		return;
	}
 
	deque<int> d1 = d, d2 = d;
	d1.push_back(v[i]);
	d2.push_front(v[i]);
	backtracking(i+1, d1);
	backtracking(i+1, d2);
}
 
int lis(){
	
	vector<int> pilha;
	
	for(int i=0; i<n; i++){
		vector<int>::iterator it = lower_bound(pilha.begin(), pilha.end(), v[i]);
		if(it==pilha.end()) pilha.push_back(v[i]);
		else *it = v[i];
	}
	
	return pilha.size();
}
 
int32_t main(){
	cin >> n;
 
	int aux;
	cin >> aux;
	dq.push_back(aux);
 
	for(int i=2;i<=n;i++){
		int x;
		cin >> x;
		if(x <= dq[0]) dq.push_front(x);
		else dq.push_back(x);
	}
	for(int i=0;i<n;i++)
		v[i] = dq[i];

	backtracking(1, deque<int>({v[0]}));
	for(int i=n;i>=1;i--){
		if(qtd[i] > 0){
			cout << i << " " << (qtd[i]%(int)(1e9 + 7)) << "\n";
			return 0;
		}
	}
	/*
	//for(int i=0;i<n;i++)
	//	cin >> v[i];


	dp[0] = 1;
	dp2[0] = 1;

	for(int i = 1; i < n; i++){
		dp[i] = dp2[i] = 1;

		for(int j = 0; j < i; j++)
			if(v[j] < v[i]) dp[i] = max(dp[i], dp[j] + 1);

		if(dp[i] == 1) continue;

		dp2[i] = 0;
		for(int j = 0; j < i; j++)
			if(v[j] < v[i] && dp[j] + 1 == dp[i]) dp2[i] += dp2[j];
	}

	int a = 0, b = 0;

	for(int i=0;i<n;i++){
		if(dp[i] > a){
			a = dp[i];
		}
	}
	for(int i=0;i<n;i++){
		if(dp[i] == a) b += dp2[i];
	}
	cout << a << " " << b*ct << "\n";
	//cout << "Count: " << ct << "\n";*/
	return 0;
}

• Subtask 1: 21 / 140