제출 #530199

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
530199		pedroslrey	Teams (CEOI11_tea)	C++14	0 / 100	257 ms	30372 KiB

tea

#include <bits/stdc++.h>

using namespace std;

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

    int n;
    cin >> n; 

    vector<pair<int, int>> xs;
    for (int i = 0; i < n; ++i) {
        int x;
        cin >> x;

        xs.emplace_back(x, i);
    }

    sort(xs.rbegin(), xs.rend());

    vector<vector<int>> ans;
    for (int i = 0; i < n; i += xs[i].first) {
        ans.emplace_back();
        for (int j = i; j < i + xs[i].first; ++j)
            ans.back().push_back(xs[j].second);
    }

    cout << ans.size() << endl;
    for (auto xs: ans) {
        cout << xs.size() << " ";
        for (int x: xs)
            cout << x+1 << " ";
        cout << endl;
    }
}

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