Submission #71307656

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Source Code Expand

fun main() {
    val cin = System.`in`.bufferedReader()
    val cout = System.out.bufferedWriter()

    var (n,m) = cin.readLine().split(" ").map { it.toInt() }
    val ws = IntArray(m+1)
    val cnts = IntArray(m+1)
    repeat(n) {
        val (t,w) = cin.readLine().split(" ").map { it.toInt() }
        ws[t] += w
        cnts[t]++
    }
    (1..m).forEach {
        cout.write("${ws[it].toDouble() / cnts[it]}")
        cout.newLine()
    }
    cout.flush()
}

Submission Info

Judge Result