An algorithm designed to monitor the safety status of a chemical reactor based on its core temperature is shown below.

1 SET reactorTemp TO 112.4
2
3 IF (reactorTemp >= 150.0) THEN
4     SEND "Critical" TO DISPLAY
5 END IF
6 IF (reactorTemp >= 100.0) AND (reactorTemp < 150.0) THEN
7     SEND "High" TO DISPLAY
8 END IF
9 IF (reactorTemp >= 50.0) AND (reactorTemp < 100.0) THEN
10    SEND "Normal" TO DISPLAY
11 END IF
12 IF (reactorTemp < 50.0) THEN
13    SEND "Low" TO DISPLAY
14 END IF

The programmer notes that using consecutive, independent selection statements makes this algorithm highly inefficient.