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0461-0470

461. Hamming Distance $\star$

class Solution {
 public:
  int hammingDistance(int x, int y) {
    int ans = 0;

    while (x || y) {
      ans += (x % 2) ^ (y % 2);
      x /= 2;
      y /= 2;
    }

    return ans;
  }
};

462. Minimum Moves to Equal Array Elements II $\star\star$

463. Island Perimeter $\star$

464. Can I Win $\star\star$

465. Optimal Account Balancing $\star\star\star$

466. Count The Repetitions $\star\star\star$

467. Unique Substrings in Wraparound String $\star\star$

468. Validate IP Address $\star\star$

469. Convex Polygon $\star\star$

470. Implement Rand10() Using Rand7() $\star\star$