Created
April 16, 2013 16:30
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프로젝트 오일러 2번 풀이
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class Euler2 { | |
/** | |
* max 이하의 짝수 피보나치 수열 합 | |
* @param op1 | |
* @param op2 | |
* @param max | |
* @param sum | |
* @return | |
*/ | |
def fibonacciEvenSum(op1: Int, op2: Int, max: Int, sum: Int): Int = { | |
val nextOp = op1 + op2 | |
nextOp match { | |
case x if nextOp > max => sum | |
case x if nextOp % 2 == 0 => fibonacciEvenSum(op2, nextOp, max, sum + nextOp) | |
case _ => fibonacciEvenSum(op2, nextOp, max, sum) | |
} | |
} | |
} | |
object Euler2 extends App { | |
println( "sum:"+ new Euler2().fibonacciEvenSum(0,1, 4000000, 0)) | |
} |
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