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Zgarb
Zgarb
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J, 25 bytes

[:(}.=>./)@;0<@(*#);.1@,]

This is a monadic verb that takes and returns a 0-1 array. Use it like this:

   f =: [:(}.=>./)@;0<@(*#);.1@,]
   f 1 1 0 1 1 1 0 1 1
0 0 0 1 1 1 0 0 0

Explanation

[:(}.=>./)@;0<@(*#);.1@,]  Input is y.
            0          ,]  Prepend 0 to y, and
                   ;.1@    cut the result along occurrences of 0,
                           so that each piece begins with a 0.
               (*#)        Multiply each piece element-wise by its length,
             <@            and put it in a box.
                           Without the boxing, the pieces would go in a 0-padded array.
           ;               Join the pieces back together.
                           Now all runs of 1 have been replaced by runs of (1+length of run).
  [:(      )@                Apply verb in parentheses:
   }.                        remove the prepended 0,
     =                       form the 0-1 array of equality with
      >./                    the maximum value.

J, 25 bytes

[:(}.=>./)@;0<@(*#);.1@,]

This is a monadic verb that takes and returns a 0-1 array. Use it like this:

   f =: [:(}.=>./)@;0<@(*#);.1@,]
   f 1 1 0 1 1 1 0 1 1
0 0 0 1 1 1 0 0 0

Explanation

[:(}.=>./)@;0<@(*#);.1@,]  Input is y.
            0          ,]  Prepend 0 to y, and
                   ;.1@    cut the result along occurrences of 0,
                           so that each piece begins with a 0.
               (*#)        Multiply each piece element-wise by its length,
             <@            and put it in a box.
                           Without the boxing, the pieces would go in a 0-padded array.
           ;               Join the pieces back together.
                           Now all runs of 1 have been replaced by runs of (1+length of run).
  (      )@                Apply verb in parentheses:
   }.                        remove the prepended 0,
     =                       form the 0-1 array of equality with
      >./                    the maximum value.

J, 25 bytes

[:(}.=>./)@;0<@(*#);.1@,]

This is a monadic verb that takes and returns a 0-1 array. Use it like this:

   f =: [:(}.=>./)@;0<@(*#);.1@,]
   f 1 1 0 1 1 1 0 1 1
0 0 0 1 1 1 0 0 0

Explanation

[:(}.=>./)@;0<@(*#);.1@,]  Input is y.
            0          ,]  Prepend 0 to y, and
                   ;.1@    cut the result along occurrences of 0,
                           so that each piece begins with a 0.
               (*#)        Multiply each piece element-wise by its length,
             <@            and put it in a box.
                           Without the boxing, the pieces would go in a 0-padded array.
           ;               Join the pieces back together.
                           Now all runs of 1 have been replaced by runs of (1+length of run).
[:(      )@                Apply verb in parentheses:
   }.                        remove the prepended 0,
     =                       form the 0-1 array of equality with
      >./                    the maximum value.
added 1 character in body
Source Link
Zgarb
Zgarb
  • 42.8k
  • 4
  • 79
  • 259

J, 25 bytes

[:(}.=>./)@;0<@(*#);.1@,]

This is a monadic verb that takes and returns a 0-1 array. Use it like this:

   f =: [:(}.=>./)@;0<@(*#);.1@,]
   f 1 1 0 1 1 1 0 1 1
0 0 0 1 1 1 0 0 0

Explanation

[:(}.=>./)@;0<@(*#);.1@,]  Input is y.
            0          ,]  Prepend 0 to y, and
                   ;.1@    cut the result along occurrences of 0,
                           so that each piece begins with a 0.
               (*#)        Multiply each piece element-wise by its length,
             <@            and put it in a box.
                           Without the boxing, the pieces would go in a 0-padded array.
           ;               Join the pieces back together.
                           Now all runs of 1 hashave been replaced by runs of (1+length of run).
  (      )@                Apply verb in parentheses:
   }.                        remove the prepended 0,
     =                       form the 0-1 array of equality with
      >./                    the maximum value.

J, 25 bytes

[:(}.=>./)@;0<@(*#);.1@,]

This is a monadic verb that takes and returns a 0-1 array. Use it like this:

   f =: [:(}.=>./)@;0<@(*#);.1@,]
   f 1 1 0 1 1 1 0 1 1
0 0 0 1 1 1 0 0 0

Explanation

[:(}.=>./)@;0<@(*#);.1@,]  Input is y.
            0          ,]  Prepend 0 to y, and
                   ;.1@    cut the result along occurrences of 0,
                           so that each piece begins with a 0.
               (*#)        Multiply each piece element-wise by its length,
             <@            and put it in a box.
                           Without the boxing, the pieces would go in a 0-padded array.
           ;               Join the pieces back together.
                           Now all runs of 1 has been replaced by runs of (1+length of run).
  (      )@                Apply verb in parentheses:
   }.                        remove the prepended 0,
     =                       form the 0-1 array of equality with
      >./                    the maximum value.

J, 25 bytes

[:(}.=>./)@;0<@(*#);.1@,]

This is a monadic verb that takes and returns a 0-1 array. Use it like this:

   f =: [:(}.=>./)@;0<@(*#);.1@,]
   f 1 1 0 1 1 1 0 1 1
0 0 0 1 1 1 0 0 0

Explanation

[:(}.=>./)@;0<@(*#);.1@,]  Input is y.
            0          ,]  Prepend 0 to y, and
                   ;.1@    cut the result along occurrences of 0,
                           so that each piece begins with a 0.
               (*#)        Multiply each piece element-wise by its length,
             <@            and put it in a box.
                           Without the boxing, the pieces would go in a 0-padded array.
           ;               Join the pieces back together.
                           Now all runs of 1 have been replaced by runs of (1+length of run).
  (      )@                Apply verb in parentheses:
   }.                        remove the prepended 0,
     =                       form the 0-1 array of equality with
      >./                    the maximum value.
Source Link
Zgarb
Zgarb
  • 42.8k
  • 4
  • 79
  • 259

J, 25 bytes

[:(}.=>./)@;0<@(*#);.1@,]

This is a monadic verb that takes and returns a 0-1 array. Use it like this:

   f =: [:(}.=>./)@;0<@(*#);.1@,]
   f 1 1 0 1 1 1 0 1 1
0 0 0 1 1 1 0 0 0

Explanation

[:(}.=>./)@;0<@(*#);.1@,]  Input is y.
            0          ,]  Prepend 0 to y, and
                   ;.1@    cut the result along occurrences of 0,
                           so that each piece begins with a 0.
               (*#)        Multiply each piece element-wise by its length,
             <@            and put it in a box.
                           Without the boxing, the pieces would go in a 0-padded array.
           ;               Join the pieces back together.
                           Now all runs of 1 has been replaced by runs of (1+length of run).
  (      )@                Apply verb in parentheses:
   }.                        remove the prepended 0,
     =                       form the 0-1 array of equality with
      >./                    the maximum value.