Cuáles fueron las ventajas de la telegrafia óptica respecto a los sistemos empleados anteriormente
(envio de mensajeros, uso de señales de humo,
banderas de colores o sonidos de tambores?
பா​

Arectangular room is 4 meters longer than it is wide and its preimeter is 32 meters find the dimensions of the room

Write a method replacekey in the minheap class with the following signature: public void replacekey(integer oldkey, integer newkey) the method will replace the first occurrence of oldkey with the newkey, and restore the min-heap property after the change. if the oldkey does not exist in the heap, the method prints an appropriate message and returns without changing the heap. example: suppose our binary heap object (bh) has the following keys: *** 4 6 7 32 19 64 26 99 42 54 28 then the method call: bh.replacekey (oldkey integer(54), newkey integer(2))

Who needs to approve a change before it is initiated? (select two.) -change board -client or end user -ceo -personnel manager -project manager