Takes input as a String. Try it here! (Alternative: .WtH`*s.-ZeSZseS)
###How it works (18-byter)
16-byter
.WtH`*s.-ZKeSZsK ~ Full program. .W ~ Functional while. While A(value) is truthy, value = B(value). ~ The final value is returned. tH ~ A, condition: Is value[1:] truthy? Is the length ≥ 2? `*s.-ZKeSZsK ~ B, setter. .- ~ Bagwise subtraction, used for removing the highest digit, with... Z ~ The current value Z, and... KeSZ ~ The highest digit of Z (as a String). Also assigns to a variable K. s ~ Casted to an integer. * ~ Multiplied by... sK ~ The highest digit. ` ~ Convert to a String.
18-byter
.WgHT*s.-`ZKeS`ZsK ~ Full program. .W ~ Functional while. While A(value) is truthy, value = B(value). ~ The final value is returned. gHT ~ A, condition: is value (H) ≥ 10? *s.-`ZKeS`ZsK ~ B, setter. .- ~ Bagwise substraction (used for removing first occurrence). `Z ~ The string representation of Z. KeS`Z ~ And the highest (lexicographically) character of Z (highest digit). It also assigns it to a variable called K. s ~ Cast to integer. * ~ Multiply by... sK ~ K casted to int.
Being that close to Jelly at such type of challenge is very good for Pyth IMO :-)
Takes input as a String. Try it here!
###How it works (18-byter)
.WgHT*s.-`ZKeS`ZsK ~ Full program. .W ~ Functional while. While A(value) is truthy, value = B(value). gHT ~ A, condition: is value (H) ≥ 10? *s.-`ZKeS`ZsK ~ B, setter. .- ~ Bagwise substraction (used for removing first occurrence). `Z ~ The string representation of Z. KeS`Z ~ And the highest (lexicographically) character of Z (highest digit). It also assigns it to a variable called K. s ~ Cast to integer. * ~ Multiply by... sK ~ K casted to int.
Takes input as a String. Try it here! (Alternative: .WtH`*s.-ZeSZseS)
###How it works
16-byter
.WtH`*s.-ZKeSZsK ~ Full program. .W ~ Functional while. While A(value) is truthy, value = B(value). ~ The final value is returned. tH ~ A, condition: Is value[1:] truthy? Is the length ≥ 2? `*s.-ZKeSZsK ~ B, setter. .- ~ Bagwise subtraction, used for removing the highest digit, with... Z ~ The current value Z, and... KeSZ ~ The highest digit of Z (as a String). Also assigns to a variable K. s ~ Casted to an integer. * ~ Multiplied by... sK ~ The highest digit. ` ~ Convert to a String.
18-byter
.WgHT*s.-`ZKeS`ZsK ~ Full program. .W ~ Functional while. While A(value) is truthy, value = B(value). ~ The final value is returned. gHT ~ A, condition: is value (H) ≥ 10? *s.-`ZKeS`ZsK ~ B, setter. .- ~ Bagwise substraction (used for removing first occurrence). `Z ~ The string representation of Z. KeS`Z ~ And the highest (lexicographically) character of Z (highest digit). It also assigns it to a variable called K. s ~ Cast to integer. * ~ Multiply by... sK ~ K casted to int.
Being that close to Jelly at such type of challenge is very good for Pyth IMO :-)
#Pyth, 1716 bytes
.WtlH`*sWtH`*s.-ZKeSZsK
Takes input as a String. Try it here! Try it here!
#Pyth, 18 bytes
.WgHT*s.-`ZKeS`ZsK
Takes input as an integer. Try it here!
##How###How it works (will be updated18-byter)
.WgHT*s.DJ`ZxJKeSJsK-`ZKeS`ZsK ~ Full program. .W ~ Functional Whilewhile. While A(value) is truthy, value = B(value). gHT ~ A, the condition. The: currentis value (H) ≥ 10.? *s.DJ`ZxJKeSJsK-`ZKeS`ZsK ~ B, the setter. .- J`Z ~ The stringBagwise representationsubstraction of(used thefor currentremoving value,first Zoccurrence). xJ`Z ~ The index in the string representation of Z of... KeSJKeS`Z ~ TheAnd the highest digit(lexicographically) character of Z as a(highest Stringdigit). .D ~ Delete fromIt Zalso assigns it to a variable called K. s ~ Cast to intinteger. * ~ Multiply by... sK ~ By the highest digit of ZK ascasted anto integerint.
#Pyth, 17 bytes
.WtlH`*s.-ZKeSZsK
Takes input as a String. Try it here!
#Pyth, 18 bytes
.WgHT*s.-`ZKeS`ZsK
Takes input as an integer. Try it here!
##How it works (will be updated)
.WgHT*s.DJ`ZxJKeSJsK ~ Full program. .W ~ Functional While. While A(value) is truthy, value = B(value). gHT ~ A, the condition. The current value ≥ 10. *s.DJ`ZxJKeSJsK ~ B, the setter. J`Z ~ The string representation of the current value, Z. xJ ~ The index in the string representation of Z of... KeSJ ~ The highest digit of Z as a String. .D ~ Delete from Z. s ~ Cast to int. * ~ Multiply. sK ~ By the highest digit of Z as an integer.
#Pyth, 16 bytes
.WtH`*s.-ZKeSZsK
Takes input as a String. Try it here!
#Pyth, 18 bytes
.WgHT*s.-`ZKeS`ZsK
Takes input as an integer. Try it here!
###How it works (18-byter)
.WgHT*s.-`ZKeS`ZsK ~ Full program. .W ~ Functional while. While A(value) is truthy, value = B(value). gHT ~ A, condition: is value (H) ≥ 10? *s.-`ZKeS`ZsK ~ B, setter. .- ~ Bagwise substraction (used for removing first occurrence). `Z ~ The string representation of Z. KeS`Z ~ And the highest (lexicographically) character of Z (highest digit). It also assigns it to a variable called K. s ~ Cast to integer. * ~ Multiply by... sK ~ K casted to int.
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