RosettaCodeData/Task/Loops-Nested/Applesoft-BASIC/loops-nested.basic

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1 C = 5
2 R = 4
3 C = C - 1:R = C - 1: DIM A(C,R)
4 FOR J = 0 TO R: FOR I = 0 TO C:N = N + 1:A(I,J) = N: NEXT I,J
5 FOR J = 0 TO R: FOR I = 0 TO C:X = INT ( RND (1) * C):Y = INT ( RND (1) * R):N = A(I,J):A(I,J) = A(X,Y):A(X,Y) = N: NEXT I,J
6 FOR J = 0 TO R
7 FOR I = 0 TO C
8 PRINT S$A(I,J);:S$ = " "
9 IF A(I,J) < > 20 THEN NEXT I,J