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Annotation of 43BSDReno/pgrm/pascal/tstpx/src/ancestor.p, revision 1.1.1.1

1.1       root        1: program ancestor(output);
                      2: {R.W.Floyd: 'Ancestor', Comm.ACM 6-62 and 3-63, Alg.96}
                      3:   const n = 20;
                      4:   var i,j,k: integer;
                      5:       r: array [1..n, 1..n] of boolean;
                      6: begin { r[i,j] = "i is a parent of j"}
                      7:   for i := 1 to n do
                      8:     for j := 1 to n do r[i,j] := false;
                      9:   for i := 1 to n do
                     10:     if i mod 10 <> 0 then r[i,i+1] := true;
                     11:   writeln(wallclock);
                     12:   for i := 1 to n do
                     13:     for j := 1 to n do
                     14:       if r[j,i] then
                     15:         for k := 1 to n do
                     16:           if r[i,k] then r[j,k] := true;
                     17:   writeln(wallclock);
                     18:   for i := 1 to n do
                     19:   begin write(' ');
                     20:     for j := 1 to n do write(chr(ord(r[i,j])+ord('0')));
                     21:     writeln
                     22:   end ;
                     23:   writeln(wallclock)
                     24: end .

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