1 #include <algorithm> 2 #include <iostream> 3 using namespace std; 4 5 int main(){ 6 int hash[10000] = { 0 }; 7 int x, n, a[110], num = 0; 8 cin >> x; 9 for (int i = 0; i<x; i++){ 10 cin >> a[i]; 11 n = a[i]; 12 if (hash[n] == 1) 13 continue; 14 while (n>1){ 15 if (n % 2 == 0) 16 n /= 2; 17 else n = (3 * n + 1) / 2; 18 hash[n] = 1; 19 } 20 } 21 sort(a, a + x); 22 for (int i = x - 1; i >= 0; i--){ 23 if (hash[a[i]] == 0){ 24 num++; 25 if (num>1) cout << " "; 26 cout << a[i]; 27 } 28 } 29 return 0; 30 }