#include<iostream> using namespace std; #include<vector> #include<algorithm> int main() { int N; int m; vector<int> v; while (cin >> N && N > 0 && N < 1000) { for (int i = 0; i < N; i++) { cin >> m; v.push_back(m); } if (N == 1) { cout << v[0] << endl; cout << "-1" << endl; } else { sort(v.begin(), v.end()); cout << v.back() << endl; v.pop_back(); for (vector<int>::iterator it = v.begin(); it != v.end(); it++) { cout << *it << " "; } cout << endl; } v.clear(); } return 0; }
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