Submission #785025

#	Time	Username	Problem	Language	Result	Execution time	Memory
785025		tolbi	Political Development (BOI17_politicaldevelopment)	C++17	100 / 100	513 ms	312296 KiB

politicaldevelopment

#pragma optimize("Bismillahirrahmanirrahim")
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
//█▀█─█──█──█▀█─█─█
//█▄█─█──█──█▄█─█■█
//█─█─█▄─█▄─█─█─█─█
//ahmet23 orz...
//FatihSultanMehmedHan
//YavuzSultanSelimHan
//AbdulhamidHan
//Sani buyuk Osman Pasa Plevneden cikmam diyor
#define author tolbi
#include <bits/stdc++.h>
using namespace std;
template<typename X, typename Y> istream& operator>>(istream& is, pair<X,Y> &pr){return is>>pr.first>>pr.second;}
#ifdef tolbi
template<typename X, typename Y> ostream& operator<<(ostream& os, pair<X,Y> pr){return os<<"{ "<<pr.first<<", "<<pr.second<<" }";}
#else
template<typename X, typename Y> ostream& operator<<(ostream& os, pair<X,Y> pr){return os<<pr.first<<" "<<pr.second;}
#endif
ostream& operator<<(ostream& os, bool bl){return os<<(int32_t)bl;}
template<typename X> istream& operator>>(istream& is, vector<X> &arr){for (auto &it : arr) is>>it; return is;}
template<typename X, size_t Y> istream& operator>>(istream& is, array<X,Y> &arr){for (auto &it : arr) is>>it; return is;}
template<typename X> ostream& operator<<(ostream& os, vector<X> &arr){for (auto &it : arr) os<<" "<<it;os<<endl;return os;}
template<typename X, size_t Y> ostream& operator<<(ostream& os, array<X,Y> &arr){for (auto &it : arr) os<<" "<<it;os<<endl;return os;}
#define endl '\n'
#define deci(x) int x;cin>>x;
#define decstr(x) string x;cin>>x;
#define cinarr(x) for (auto &it : x) cin>>it;
#define coutarr(x) for(auto &it : x) cout<<it<<" ";cout<<endl;
#define sortarr(x) sort(x.begin(), x.end())
#define sortrarr(x) sort(x.rbegin(), x.rend())
#define rev(x) reverse(x.begin(), x.end())
#define tol(bi) (1LL<<((int)(bi)))
#define ios ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
const int MOD = 1e9+7;
mt19937 ayahya(chrono::high_resolution_clock().now().time_since_epoch().count());
int32_t main(){
	ios;
	int T = 1;
	if (!T) cin>>T;
	int tno = 0;
	while (T-(tno++)){
		bitset<50000> full;
		deci(n);deci(k);
		vector<vector<int>> gr(n);
		vector<pair<int,int>> pr(n);
		vector<bitset<50000>> arr(n);
		for (int i = 0; i < n; ++i)
		{
			pr[i].second=i;
			full[i]=1;
			cin>>pr[i].first;
			for (int j = 0; j < pr[i].first; j++){
				deci(x);
				gr[i].push_back(x);
			}
		}
		sortarr(pr);
		vector<int> pl(n);
		for (int i = 0; i < n; ++i)
		{
			pl[pr[i].second]=i;
		}
		for (int i = 0; i < n; i++){
			int node = pl[i];
			for (int j = 0; j < gr[i].size(); j++){
				int nex = pl[gr[i][j]];
				arr[node][nex]=1;
			}
		}
		bitset<50000> kk;
		auto f = [&](bitset<50000> bs, int dept, auto f)->int{
			if (dept==k) return 0;
			int mava = 0;
			if (bs.count()==0) return 0;
			int pos = bs._Find_first();
			while (pos<50000){
				bs[pos]=0;
				kk=bs&arr[pos];
				mava=max(mava,f(kk,dept+1,f)+1);
				pos=bs._Find_next(pos);
			}
			return mava;
		};
		cout<<f(full,0,f)<<endl;
	}
}

Compilation message (stderr)

politicaldevelopment.cpp:1: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    1 | #pragma optimize("Bismillahirrahmanirrahim")
      | 
politicaldevelopment.cpp: In function 'int32_t main()':
politicaldevelopment.cpp:67:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |    for (int j = 0; j < gr[i].size(); j++){
      |                    ~~^~~~~~~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 12 / 12
• Subtask 3: 23 / 23
• Subtask 4: 38 / 38
• Subtask 5: 23 / 23