During this "Time Period" when Z1 first becomes equal to 1 & finally when it becomes equal to 2;

C2:C200 & D2 D200 keeps on updating its values continuously.

Output required: in E2:E200 & F2:F200 which should be the highest value of respective cell address of C column & the lowest value of respective cell address of D column AS LONG AS Z1=1.

Ex:

For Z1=1

C2=200.22 D2=507.43 E2=200.22 F2=507.43

C2=201.34 D2=501.43 E2=201.34 F2=501.43

C2=204.75 D2=500.43 E2=204.75 F2=500.43

C2=204.75 D2=508.55 E2=204.75 F2=500.43

C2=203.89 D2=500.43 E2=204.75 F2=500.43

...

Answer is E2 & F2.

Similarly for other C3:C200 & D3:D200 answer would be in E3:E200 & F3:F200.

How to accomplish?