# Selection (IF & CASE OF)

> Cambridge Assessment International Education (CAIE) Pseudocode Reference Guide
> Applicable Syllabus: **IGCSE & A Level**

Cambridge pseudocode conditional statements: IF..THEN..ELSE..ENDIF and CASE OF..OTHERWISE..ENDCASE with continuous value ranges.

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Conditional logic in Cambridge pseudocode uses `IF..THEN..ELSE..ENDIF` or `CASE OF..OTHERWISE..ENDCASE`. CASE values may include discrete constants or continuous value ranges using `TO`.

### IF .. THEN .. ELSE .. ENDIF

```pseudocode
IF ChallengerScore > ChampionScore THEN
   IF ChallengerScore > HighestScore THEN
      OUTPUT ChallengerName, " is champion and highest scorer"
   ELSE
      OUTPUT ChallengerName, " is the new champion"
   ENDIF
ELSE
   OUTPUT ChampionName, " is still the champion"
   IF ChampionScore > HighestScore THEN
      OUTPUT ChampionName, " is also the highest scorer"
   ENDIF
ENDIF
```

### CASE OF .. OTHERWISE .. ENDCASE

```pseudocode
INPUT Move
CASE OF Move
   'W' : Position <- Position - 10
   'S' : Position <- Position + 10
   'A' : Position <- Position - 1
   'D' : Position <- Position + 1
   OTHERWISE : CALL Beep
ENDCASE

// CASE with range values
CASE OF Score
   90 TO 100 : Grade <- "A*"
   80 TO 89  : Grade <- "A"
   70 TO 79  : Grade <- "B"
   OTHERWISE : Grade <- "C or below"
ENDCASE
```


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