Submission #533627

#	Time	Username	Problem	Language	Result	Execution time	Memory
533627		CaroLinda	Teams (CEOI11_tea)	C++14	50 / 100	2598 ms	26628 KiB

tea

#include <bits/stdc++.h>

#define mk make_pair
#define lp(i,a,b) for(int i = a ; i < b; i++ )
#define sz(x) (int)x.size()
#define all(x) x.begin(),x.end()

using namespace std ;

int main(){
	ios_base::sync_with_stdio(false );
	cin.tie(0) ;

	int N ;
	cin >> N ;
	vector<int> arr(N) , idx(N) ; iota(all(idx) , 0) ;
	vector<int> corte(N) ;
	for(auto &e : arr ) cin >> e ;
	sort(all(idx),[&](int a, int b) { return arr[a] < arr[b] ; }) ;
	vector<pair<int,int> > dp(N) ;
	for(int i = 0 ; i < N ; i++){
		if( i+1 < arr[idx[i]] ){
			dp[i] = make_pair( -1 , -N-1 ) ;
			continue ;
		}
		dp[i] = make_pair(1 , -i-1 ) ;
		corte[i] = -1 ;
		for(int j = i-arr[idx[i]] ; j >= 0 ; j-- ){
			pair<int,int> aux = mk(dp[j].first+1 , min(dp[j].second,-(i-j)) ) ;
			if(aux > dp[i]){
				dp[i] = aux ;
				corte[i] = j ;
			}
		}
	}

	vector< vector<int> > ans ;

	int x = N-1 ;
	while(x != -1){

		ans.push_back(vector<int>()) ;
		for(int i = corte[x]+1 ; i <= x ; i++ ) ans.back().push_back(idx[i]) ;
		x = corte[x] ;

	}

	cout << sz(ans) << "\n" ;
	for(auto e : ans ){
		cout << sz(e) << " " ;
		for(auto ee : e ) cout << ee+1 << " " ;
			cout << "\n" ;
	}

}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10