BOJ 9313 - Integer Flipping [C++]

문제

링크

풀이

#include <iostream>
using namespace std;
 
bool solve(void) {
  long long n; cin >> n;
  if (n == -1) return false;
 
  long long ans = 0;
  for (int i=0; i<32; i++) {
    ans = (ans << 1) | ((n & (1LL << i)) >> i);
  }
  cout << ans << "\n";
 
  return true;
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  while (solve());
  return 0;
}