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Common Character Count

Given two strings, find the number of common characters between them.

Example:

  • For s1 = "aabcc" and s2 = "adcaa", the output should be commonCharacterCount(s1, s2) = 3.

Input/Output:

  • [execution time limit] 5 seconds (ts)

  • [input] string s1

    • A string consisting of lowercase English letters.
    • Guaranteed constraints:
      • $1 \le s1.length \le 15$

  • [input] string s2

    • A string consisting of lowercase English letters.
    • Guaranteed constraints:
      • $1 \le s2.length \le 15$

  • [output] integer

Solution: