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최대공약수 – java, scala

Greatest Common Divisor

// java
public long gcd(long a, long b) {
    return (b == 0)? a : gcd(b, a % b);
}

// scala
def gcd(a: Long, b: Long): Long =
  if (b == 0) a else gcd(b, a % b)

아, 산수가 안되어서 … ㅜㅠ

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