Submission #363511

#	Time	Username	Problem	Language	Result	Execution time	Memory
363511		silverfish	Teams (CEOI11_tea)	C++14	30 / 100	1229 ms	166892 KiB

tea

#include <bits/stdc++.h>
using namespace std;

/*<DEBUG>*/
#define tem template <typename 
#define can_shift(_X_, ...) enable_if_t<sizeof test<_X_>(0) __VA_ARGS__ 8, debug&> operator<<(T i)
#define _op debug& operator<<
tem C > auto test(C *x) -> decltype(cerr << *x, 0LL);
tem C > char test(...);
tem C > struct itr{C begin, end; };
tem C > itr<C> get_range(C b, C e) { return itr<C>{b, e}; }
struct debug{
#ifdef _LOCAL
	~debug(){ cerr << endl; }
	tem T > can_shift(T, ==){ cerr << boolalpha << i; return *this; }
	tem T> can_shift(T, !=){ return *this << get_range(begin(i), end(i)); }
	tem T, typename U > _op (pair<T, U> i){ 
		return *this << "< " << i.first << " , " << i.second << " >"; }
	tem T> _op (itr<T> i){
		*this <<  "{ ";
		for(auto it = i.begin; it != i.end; it++){
			*this << " , " + (it==i.begin?2:0) << *it;
		}
		return *this << " }";
	}
#else
tem T> _op (const T&) { return *this; }
#endif 
};

string _ARR_(int* arr, int sz){
	string ret = "{ " + to_string(arr[0]); 
	for(int i = 1; i < sz; i++) ret += " , " +  to_string(arr[i]);
	ret += " }"; return ret;
}

#define exp(...) " [ " << #__VA_ARGS__ << " : " << (__VA_ARGS__) << " ]"
/*</DEBUG>*/

typedef long long ll;
typedef unsigned long long ull;
typedef unsigned int uint;
typedef pair<int, int> pii;
//mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

#define pb push_back
#define FAST ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define TC int __TC__; cin >> __TC__; while(__TC__--)
#define ar array

const int INF = 1e9 + 7, N = 1e6+100;

vector<int> teams[N];
set<ar<int,2>> ids;
int cur=0, mxcur = 0, mx=0, n;
ar<int,2> a[N];

int main(void)
{
	FAST;
	cin >> n;
	for(int i = 0; i < n; ++i){
		cin >> a[i][0];
		a[i][1] = i;
	}
	sort(a, a+n);

	mx = a[n-1][0];
	int i = n-1;

	while(i >= 0){	
		mxcur = a[i][0];
		if(i+1 < mxcur) break;

		teams[cur].pb(a[i][1]);
		for(int j = 1; j < mxcur; ++j){
			teams[cur].pb(a[i-j][1]);	
		}

		ids.insert({mxcur, cur++});
		i -= mxcur;
	}

	/*
	debug() << exp(i);
	for(int i = 0; i < cur; ++i){
		debug() << exp(teams[i]);
	}
	*/

	while(i >= 0 && (*ids.begin())[0] < mx){
		auto it = ids.begin();
//		debug() << exp(*it);
		cur = (*it)[1];
		for(int j = 0; i >= 0 && j < mx-(*it)[0]; --i, ++j){
			teams[cur].pb(a[i][1]);	
		}
		ids.erase(it);
		ids.insert({(int)teams[cur].size(), cur});
	}

	for(; i >= 0; --i){
		auto it = ids.begin();
		cur = (*it)[1];
		teams[cur].pb(a[i][1]);
		ids.erase(it);
		ids.insert({(int)teams[cur].size(), cur});
	}

	map<int, int> vis;
	cout << ids.size() << '\n';
	for(auto it : ids){
		cout << it[0] << ' ';
		for(int i : teams[it[1]]){
			cout << i+1 << ' ';
			assert(vis[i] == 0);
			vis[i] = 1;
		}
		cout << '\n';
	}


	return 0;
}

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