Ad
iliakhaburdzaniavs.Blazej SLEBODA

Meta strings - Check if two strings can become same after a swap in one string

Code
Diff
  • func areMetaStrings(_ str1: String, _ str2: String) -> Bool {
    if str1.count != str1.count {
        return false
    }
    let str1Arr = Array(str1)
    let str2Arr = Array(str2)
    var set = Set<Character>()
    var falseCount = 0
    for i in 0..<str1.count {
        if str1Arr[i] != str2Arr[i] {
            falseCount += !set.insert(str1Arr[i]).inserted ? 1 : 0
            falseCount += !set.insert(str2Arr[i]).inserted ? 1 : 0
        }
    }
    return falseCount == 2
}
    • func areMetaStrings(_ str1: String, _ str2: String) -> Bool {
    • return str1.lowercased().sorted() == str2.lowercased().sorted()
    • if str1.count != str1.count {
    • return false
    • }
    • let str1Arr = Array(str1)
    • let str2Arr = Array(str2)
    • var set = Set<Character>()
    • var falseCount = 0
    • for i in 0..<str1.count {
    • if str1Arr[i] != str2Arr[i] {
    • falseCount += !set.insert(str1Arr[i]).inserted ? 1 : 0
    • falseCount += !set.insert(str2Arr[i]).inserted ? 1 : 0
    • }
    • }
    • return falseCount == 2
    • }