小红的方神题 - 代码 - 构造题
#include <iostream> using namespace std; void solve() { int n; cin >> n; if(n <= 2) cout << -1 << endl; else { for(int i = 2; i <= n; i++) cout << i << " "; cout << 1 << endl; } } int main() { solve(); return 0; }
#include <iostream> using namespace std; void solve() { int n; cin >> n; if(n <= 2) cout << -1 << endl; else { for(int i = 2; i <= n; i++) cout << i << " "; cout << 1 << endl; } } int main() { solve(); return 0; }
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