basic arduino c++ program needed

the program will monitor 2 pumps
the program will have inputs from 4 floats, 2 pump sensors, and a button for system reset
the output of the program will be 2 pump contactors, and one alarm.

behavior of the program:
the 2 pumps should alternate leading and lagging roles
if floats 1 and 2 are active turn on the leading pump (until float 1 is deactivated)
if float 3 is then activated turn on the lagging pump (until float 1 is deactivated)
if float 4 is activated turn on the alarm light and wait 2 minutes to verify if still active
if yes turn pumps off
else break out of loop