RosettaCodeData/Task/Remove-duplicate-elements/ANSI-BASIC/remove-duplicate-elements.b...

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100 REM Remove duplicate elements
110 DIM DataArray(1 TO 7), ResultArray(1 TO 7)
120 ! Set the data.
130 FOR I = 1 TO 7
140 READ DataArray(I)
150 NEXT I
160 ! Remove duplicates
170 LET ResultArray(1) = DataArray(1)
180 LET LastResultIndex = 1
190 LET Position = 1
200 DO WHILE Position < UBOUND(DataArray)
210 LET Position = Position + 1
220 LET IsNewNumber = -1
230 FOR ResultIndex = 1 TO LastResultIndex
240 IF DataArray(Position) = ResultArray(ResultIndex) THEN
250 LET IsNewNumber = 0
260 EXIT FOR
270 END IF
280 NEXT ResultIndex
290 IF IsNewNumber = -1 THEN
300 LET LastResultIndex = LastResultIndex + 1
310 LET ResultArray(LastResultIndex) = DataArray(Position)
320 END IF
330 LOOP
340 FOR ResultIndex = 1 TO LastResultIndex
350 PRINT ResultArray(ResultIndex)
360 NEXT ResultIndex
370 DATA 1, 2, 2, 3, 4, 5, 5
380 END