691031a7f9
RESTORE n now correctly positions past the DATA token so the next READ gets actual values instead of the token byte. New tests: Roman numerals, Luhn validator, Towers of Hanoi, 100 Doors, Pascal's triangle, type declarations, Hailstone sequence, multiplication table. 50 tests now pass.
23 lines
599 B
QBasic
23 lines
599 B
QBasic
10 REM Multiplication table - Rosetta Code
|
|
20 REM Header row
|
|
30 PRINT " X";
|
|
40 FOR J = 1 TO 12
|
|
50 PRINT USING "####"; J;
|
|
60 NEXT J
|
|
70 PRINT
|
|
80 PRINT STRING$(51, "-");
|
|
90 PRINT
|
|
100 REM Table body
|
|
110 CHECKSUM = 0
|
|
120 FOR I = 1 TO 12
|
|
130 PRINT USING "###"; I;
|
|
140 FOR J = 1 TO 12
|
|
150 IF J < I THEN PRINT " "; ELSE PRINT USING "####"; I * J;
|
|
160 IF J >= I THEN CHECKSUM = CHECKSUM + I * J
|
|
170 NEXT J
|
|
180 PRINT
|
|
190 NEXT I
|
|
200 REM Sum of i*j for j>=i, i=1..12: known value 3367
|
|
210 IF CHECKSUM <> 3367 THEN PRINT "FAIL: checksum"; CHECKSUM : END
|
|
220 PRINT "Multiplication table OK"
|