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  1. Prepare
  2. Algorithms
  3. Strings
  4. Sherlock and the Valid String
  5. Discussions

Sherlock and the Valid String

  • leoisaac_lameda
     + 0 comments
    def isValid(s):
    # Write your code here
    count = Counter(s).values()
    countvalues = Counter(count)
    
    if len(countvalues) > 2: 
        return 'NO'
    elif len(countvalues) == 1:
        return 'YES'
    val = min(countvalues.keys())
    val2 = max(countvalues.keys())
    if abs(val2 - val) > 1:
        if val != 1 or countvalues[1] > 1:
            return 'NO'
            
    if min(countvalues.values()) > 1:
        return 'NO'
        
    return 'YES'