classSolution {

funmaximumDetonation(b:Array<IntArray>):Int {

val adj=HashMap<Int,ArrayList<Int>>().apply {

for (iin b.indices) {

for (jin b.indices) {

if (i!= j) {

val dX= b[i][0].toDouble()- b[j][0].toDouble()

val dY= b[i][1].toDouble()- b[j][1].toDouble()

if ((b[i][2].toDouble()* b[i][2].toDouble())>= (dX* dX+ dY* dY))

this[i]= getOrDefault(i,ArrayList<Int>()).apply { add(j) }

}

}

}

}

fundfs(i:Int,visit:HashSet<Int>) {

if (iin visit)

visit.add(i)

adj[i]?.forEach {

dfs(it, visit)

}

}

var res=0

for (iin b.indices) {

val visit=HashSet<Int>()

dfs(i, visit)

res= maxOf(

res,

visit.size

)

}

return res

}

}