제출 #799092

#제출 시각아이디문제언어결과실행 시간메모리
799092finn__Newspapers (CEOI21_newspapers)C++17
8 / 100
1 ms212 KiB
#include <bits/stdc++.h> using namespace std; int main() { size_t n, m; cin >> n >> m; cout << "YES\n"; if (n == 1) { cout << "1\n1\n"; return 0; } if (n == 2) { cout << "2\n1 1\n"; return 0; } cout << 2 * (n - 2) << '\n'; for (size_t i = 2; i < n; ++i) cout << i << ' '; for (size_t i = n - 1; i >= 2; --i) cout << i << ' '; cout << '\n'; }
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