Submission #773228

#	Time	Username	Problem	Language	Result	Execution time	Memory
773228		NK_	Teams (CEOI11_tea)	C++17	80 / 100	479 ms	125640 KiB

tea

// Success consists of going from failure to failure without loss of enthusiasm
#include <bits/stdc++.h>
 
using namespace std;
 
#define nl '\n'
#define f first
#define s second
#define mp make_pair

#define sz(x) int(x.size())

using pi = pair<int, int>;
template<class T> using V = vector<T>;
 
int main() {
	cin.tie(0)->sync_with_stdio(0);
	
	int N; cin >> N;
	V<int> A(N); for(auto& x : A) cin >> x;
 
	V<pi> B; for(int i = 0; i < N; i++) B.push_back(mp(A[i], i));
	sort(rbegin(B), rend(B));
 
	V<V<int>> C;
	multiset<pi> siz;
	for(int i = 0; i < N; i++) {
		int left = N - i;
		if (left < B[i].first) {
			int idx = (*begin(siz)).s;
			assert(sz(C[idx])+1 >= B[i].first);
			siz.erase(begin(siz));

			C[idx].push_back(B[i].second);

			siz.insert(mp(sz(C[idx]), idx));
		} else {
			int r = i + B[i].first;
			
			C.push_back({});
			for(int x = i; x < r; x++) C.back().push_back(B[x].second);
			
			siz.insert(mp(sz(C.back()), sz(C) - 1));
			
			i = r - 1; 
		}
	}

	int mx = 0; for(auto v : C) mx = max(mx, sz(v));
	// cout << mx << nl;

	cout << sz(C) << nl;
	for(auto v : C) {
		cout << sz(v) << " ";
		for(auto x : v) cout << x + 1 << " ";
		cout << nl;
	}

	return 0;
}

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