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#2546 - Apply Bitwise Operations to Make Strings Equal

Problem Description

You are given two 0-indexed binary strings s and target of the same length n. You can do the following operation on s any number of times:

  • Choose two different indices i and j where 0 <= i, j < n.
  • Simultaneously, replace s[i] with (s[i] OR s[j]) and s[j] with (s[i] XOR s[j]).

For example, if s = "0110", you can choose i = 0 and j = 2, then simultaneously replace s[0] with (s[0] OR s[2] = 0 OR 1 = 1), and s[2] with (s[0] XOR s[2] = 0 XOR 1 = 1), so we will have s = "1110".

Return true if you can make the string s equal to target, or false otherwise.

Solution

/**
 * @param {string} s
 * @param {string} target
 * @return {boolean}
 */
var makeStringsEqual = function(s, target) {
  return (s.includes('1') === target.includes('1'));
};