September 2017 Update

This commit is contained in:
Ingy döt Net 2017-09-23 10:01:46 +02:00
parent bba7bfd280
commit ba8067c3b7
14570 changed files with 153136 additions and 63871 deletions

View file

@ -1,16 +1,14 @@
/*REXX program presents a "flipping bit" puzzle. The user can solve via it via C.L. */
parse arg N u on off . /*get optional arguments from the C.L. */
parse arg N u . /*get optional arguments from the C.L. */
if N=='' | N=="," then N =3 /*Size given? Then use default of 3.*/
if u=='' | u=="," then u =N /*the number of bits initialized to ON.*/
if on =='' then on =1 /*the character used for "on". */
if off=='' then off=0 /* " " " " "off". */
col@= 'a b c d e f g h i j k l m n o p q r s t u v w x y z' /*for the column id.*/
cols=space(col@,0); upper cols /*letters to be used for the columns. */
@.=off; !.=off /*set both arrays to "off" characters.*/
cols=space(col@, 0); upper cols /*letters to be used for the columns. */
@.=0; !.=0 /*set both arrays to "off" characters.*/
tries=0 /*number of player's attempts (so far).*/
do while show(0) < u /* [↓] turn "on" U number of bits.*/
r=random(1,N); c=random(1,N) /*get a random row and column. */
@.r.c=on ; !.r.c=on /*set (both) row and column to ON. */
r=random(1, N); c=random(1, N) /*get a random row and column. */
@.r.c=1 ; !.r.c=1 /*set (both) row and column to ON. */
end /*while*/ /* [↑] keep going 'til U bits set.*/
oz=z /*keep the original array string. */
call show 1, ' target' /*show target for user to attain. */
@ -19,11 +17,11 @@ call show 1, ' ◄───target' /*show target for user
call flip 'C',random(1,N) /* " " column " " */
end /*random···*/ /* [↑] just perform 1 or 2 times. */
if z==oz then call flip 'R',random(1,N) /*ensure it's not target we're flipping*/
if z==oz then call flip 'R', random(1, N) /*ensure it's not target we're flipping*/
do until z==oz /*prompt until they get it right. */
call prompt /*get a row or column number from C.L. */
call flip left(?,1),substr(?,2) /*flip a user selected row or column. */
call flip left(?, 1), substr(?, 2) /*flip a user selected row or column. */
call show 0 /*get image (Z) of the updated array. */
end /*until···*/
@ -32,13 +30,13 @@ say '─────────Congrats! You did it in' tries "tries
exit tries /*stick a fork in it, we're all done. */
/*──────────────────────────────────────────────────────────────────────────────────────*/
halt: say 'program was halted!'; exit /*the REXX program was halted by user. */
isInt: return datatype(arg(1),'W') /*returns 1 if arg is an integer.*/
isLet: return datatype(arg(1),'M') /*returns 1 if arg is a letter. */
isInt: return datatype(arg(1), 'W') /*returns 1 if arg is an integer.*/
isLet: return datatype(arg(1), 'M') /*returns 1 if arg is a letter. */
terr: if ok then say '***error!***: illegal' arg(1); ok=0; return
/*──────────────────────────────────────────────────────────────────────────────────────*/
flip: parse arg x,# /*X is R or C; #: is which one.*/
do c=1 for N while x=='R'; if @.#.c==on then @.#.c=off; else @.#.c=on; end
do r=1 for N while x=='C'; if @.r.#==on then @.r.#=off; else @.r.#=on; end
do c=1 for N while x=='R'; @.#.c=\@.#.c; end /*c*/
do r=1 for N while x=='C'; @.r.#=\@.r.#; end /*r*/
return /* [↑] the bits can be ON or OFF. */
/*──────────────────────────────────────────────────────────────────────────────────────*/
prompt: if tries\==0 then say 'bit array after play: ' tries
@ -47,7 +45,7 @@ prompt: if tries\==0 then say '─────────bit array after play
call show 1, ' your array' /*display the array to the terminal. */
do forever; ok=1; say; say !; pull ? _ . 1 all /*prompt & get ans*/
if abbrev('QUIT',?,1) then do; say 'quitting···'; exit 0; end
if abbrev('QUIT', ?, 1) then do; say 'quitting···'; exit 0; end
if ?=='' then do; call show 1," ◄───target",.; ok=0
call show 1," ◄───your array"
end /* [↑] reshow targ*/
@ -56,7 +54,7 @@ prompt: if tries\==0 then say '─────────bit array after play
if isLet(?) then a=pos(?,cols)
if isLet(?) & (a<1 | a>N) then call terr 'column: ' ?
if isLet(?) & length(?)>1 then call terr 'column: ' ?
if isLet(?) then ?='C'pos(?,cols)
if isLet(?) then ?='C'pos(?, cols)
if isInt(?) & (?<1 | ?>N) then call terr 'row: ' ?
if isInt(?) then ?=?/1 /*normalize number*/
if isInt(?) then ?='R'?
@ -66,20 +64,19 @@ prompt: if tries\==0 then say '─────────bit array after play
tries=tries+1 /*bump da counter.*/
return ? /*return response.*/
/*──────────────────────────────────────────────────────────────────────────────────────*/
show: $=0; _=; z=; parse arg tell,tx,o /*$: # of ON bits.*/
show: $=0; _=; parse arg tell,tx,o /*$≡num of ON bits*/
if tell then do; say /*are we telling? */
say ' ' subword(col@,1,N) " column letter"
say 'row 'copies('',N+N+1) /*prepend col hdrs*/
end /* [↑] grid hdrs.*/
z= /* [↓] build grid.*/
do r=1 for N /*show grid rows.*/
do c=1 for N /*build grid cols.*/
if o==. then do; z=z || !.r.c; _=_ !.r.c; $=$+(!.r.c==on); end
else do; z=z || @.r.c; _=_ @.r.c; $=$+(@.r.c==on); end
do c=1 for N; if o==. then do; z=z || !.r.c; _=_ !.r.c; $=$+!.r.c; end
else do; z=z || @.r.c; _=_ @.r.c; $=$+@.r.c; end
end /*c*/ /*··· and sum ONs.*/
if tx\=='' then tar.r=_ tx /*build da target?*/
if tell then say right(r,2) ' '_ tx; _= /*show the grid? */
if tell then say right(r, 2) ' '_ tx; _= /*show the grid? */
end /*r*/ /*show a grid row.*/
if tell then say /*show blank line.*/
return $ /*$: # of ON bits.*/
return $ /*num of on bits. */