When muitiple tasks are exccuted on a sinple$-$threaded cPU tho tasks are scheduled based on the principle of preexeculion is paused until the higher$-$priority tack is complete.

There are $n$ functions to be excuted on a single$-$threaded cril, with esch function having a unique io between $9$ and $n-1.$ Gven an integer $n,$ representing the mimber of functions to be execited, and an execution iog as an acray of timestamplatie:

Note Whit calcallity the execuition time of a function taly both the starting and ending fimes of the function call

Eample

$\backslash$table$[[$Timestamp$,$Functien Running,Remarks$],[$b$.,5,$Function Dsearts:$],[11,0,],[z,$a$,],[3,0,],[4,$a:$,$Function $2$ starts and hundtoe $0$ a preperpent$],[3,z,$buntanz ends$],[a,$a$,$Noten I insuent$],[,1,]]$