Return to Answer

Ruby 1.9, 52 46 characters

eval"A,B="+gets;i=0;p eval"(A-B+i+=1)/i*"*B+?1 

Edits:

• (52 -> 48) Found a shorter way to parse the input
• (48 -> 46) Less looping, more eval.

Ruby 1.9, 52  46 (42) characters

eval"A,B="+gets;i=0;p eval"(A-B+i+=1)/i*"*B+?1 

If stderr is ignored:

eval"A,B=I="+gets;p eval"I/(A-I-=1)*"*B+?1 

Ruby 1.8, 43 characters, no additional output to stderr:

eval"a,b=i="+gets;p eval"i/(a-i-=1)*"*b+"1" 

Edits:

• (52 -> 48) Found a shorter way to parse the input
• (48 -> 46) Less looping, more eval.

Ruby 1.9, 52 46 characters

eval"A,B="+gets;i=0;p eval"(A-B+i+=1)/i*"*B+?1 

Edits:

• (52 -> 48) Found a shorter way to parse the input
• (48 -> 47) Less looping, more eval.

Ruby 1.9, 52 46 characters

eval"A,B="+gets;i=0;p eval"(A-B+i+=1)/i*"*B+?1 

Edits:

• (52 -> 48) Found a shorter way to parse the input
• (48 -> 46) Less looping, more eval.

Ruby 1.9, 52 48 characters

eval"A,B="+gets;s=1;1.upto(A-B){|i|s+=s*B/i};p s 

Edits:

• Found a shorter way to parse the input

Ruby 1.9, 52 46 characters

eval"A,B="+gets;i=0;p eval"(A-B+i+=1)/i*"*B+?1 

Edits:

• (52 -> 48) Found a shorter way to parse the input
• (48 -> 47) Less looping, more eval.