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import kotlin.math.sqrt

fun main(args: Array<String>) {

    val p1 = Point(3, 4)

    val c = Circle(Point(0,0), 5f)

    println(c.isInCircle(p1))

}

///////////////////////////////////////////////////

/// 1

class Point(var x: Int, var y: Int) {

    override fun toString(): String {

        return "[$x, $y]"

    }

/// 2

    fun move(otherPoint: Point) {

        x += otherPoint.x

        y += otherPoint.y

    }

/// 3

	fun distance(otherPoint: Point): Float {

        var diffX = x - otherPoint.x

        var diffY = y - otherPoint.y

        return sqrt((diffX * diffX + diffY * diffY).toFloat())

    }

}

/// 4

class Circle(val center: Point, val radius: Float) {

    fun isInCircle(p: Point): Boolean {

        return center.distance(p) <= radius

    }

}