模擬試験

    fun solution(answers: IntArray): IntArray {
        var mStudent1 = intArrayOf(1, 2, 3, 4, 5)
        val mStudent1IdxParser = mStudent1.size
        var mStudent2 = intArrayOf(2, 1, 2, 3, 2, 4, 2, 5)
        val mStudent2IdxParser = mStudent2.size
        var mStudent3 = intArrayOf(3, 3, 1, 1, 2, 2, 4, 4, 5, 5)
        val mStudent3IdxParser = mStudent3.size

        var mSolvedCntPerStudent = mutableMapOf<Int, Int>()
        mSolvedCntPerStudent[1] = 0
        mSolvedCntPerStudent[2] = 0
        mSolvedCntPerStudent[3] = 0
        var mMax = 0
        for (i in answers.indices) {
            if (answers[i] == mStudent1[i % mStudent1IdxParser]) {
                var mCurrent = mSolvedCntPerStudent[1]
                if (mCurrent != null) {
                    mSolvedCntPerStudent[1] = mCurrent + 1
                    if (mMax < mCurrent + 1) mMax = mCurrent + 1
                }
            }
            if (answers[i] == mStudent2[i % mStudent2IdxParser]) {
                var mCurrent = mSolvedCntPerStudent[2]
                if (mCurrent != null) {
                    mSolvedCntPerStudent[2] = mCurrent + 1
                    if (mMax < mCurrent + 1) mMax = mCurrent + 1
                }
            }
            if (answers[i] == mStudent3[i % mStudent3IdxParser]) {
                var mCurrent = mSolvedCntPerStudent[3]
                if (mCurrent != null) {
                    mSolvedCntPerStudent[3] = mCurrent + 1
                    if (mMax < mCurrent + 1) mMax = mCurrent + 1
                }
            }
        }
        
       var mTempList = mutableListOf<Int>()
       for (it in mSolvedCntPerStudent.entries) {
           if (mSolvedCntPerStudent[it.key] == mMax) {
               mTempList.add(it.key)
           }
       }
       return mTempList.toIntArray()
    }