Submission #698707

#	Time	Username	Problem	Language	Result	Execution time	Memory
698707		Cyanmond	Newspapers (CEOI21_newspapers)	C++17	4 / 100	1 ms	304 KiB

newspapers

#include <bits/stdc++.h>

int main() {
    int N;
    std::cin >> N;
    std::cout << "YES" << std::endl;
    if (N == 1) {
        std::cout << 1 << '\n' << 1 << std::endl;
    } else if (N <= 3) {
        std::cout << 2 << '\n' << 2 << ' ' << 2 << std::endl;
    } else {
        std::cout << 2 + (N - 3) * 3 + 1 << std::endl;
        std::cout << 2 << ' ' << 2 << ' ';
        for (int i = 3; i <= N - 1; ++i) {
            std::cout << i + 1 << ' ' << i - 1 << ' ' << i << ' ';
        }
        std::cout << N - 1 << std::endl;
    }
}

• Subtask 1: 0 / 12
• Subtask 2: 4 / 8
• Subtask 3: 0 / 80