37 lines
721 B
Text
37 lines
721 B
Text
PROC zig zag = (INT n)[,]INT: (
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PROC move = (REF INT i, j)VOID: (
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IF j < n THEN
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i := ( i <= 1 | 1 | i-1 );
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j +:= 1
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ELSE
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i +:= 1
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FI
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);
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[n, n]INT a;
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INT x:=LWB a, y:=LWB a;
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FOR v FROM 0 TO n**2-1 DO
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a[y, x] := v;
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IF ODD (x + y) THEN
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move(x, y)
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ELSE
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move(y, x)
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FI
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OD;
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a
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);
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INT dim = 5;
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#IF formatted transput possible THEN
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FORMAT d = $z-d$;
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FORMAT row = $"("n(dim-1)(f(d)",")f(d)")"$;
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FORMAT block = $"("n(dim-1)(f(row)","lx)f(row)")"l$;
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printf((block, zig zag(dim)))
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ELSE#
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[,]INT result = zig zag(dim);
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FOR i TO dim DO
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print((result[i,], new line))
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OD
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#FI#
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