概要
『第10回デスマコロシアム』問題 裏メッセージ
裏メッセージについて
第10回デスマコロシアムは以下の文字列を出力する問題です。
treetreetreefiregoldtreetreetreetreegoldtreegoldtreegoldtreegoldtreegoldtreetreegoldtreegoldtreetreetreegoldtreetreetreewaterwatertreetreewatergoldgoldtreegoldtreegoldtreegoldtreegoldtreetreegoldtreegoldtreetreetreegoldtreetreefiregoldgoldwatermoontreemoontreegoldgoldtreewatergoldgoldtreetreegoldgoldtreetreemoonwatergoldgoldwatergoldtreetreemoongoldgoldmoon
この文字列はある文字列を元に生成されています。 しかし、このままでは復元不可能なので、復元可能な形式にします。
出力メッセージから裏メッセージに復元可能にする
まず tree と gold は内部的に二種類にわかれているので、
tree と tree*, gold と gold* に変更します。
その上で、復元に必要な数値の情報も追加しました。
[ [12, "tree"], [14, "tree"], [15, "tree"], [14, "fire"], [15, "gold*"], [15, "tree*"], [14, "tree"], [4, "tree*"], [16, "tree*"], [15, "gold*"], [4, "tree*"], [9, "gold"], [14, "tree"], [13, "gold*"], [16, "tree*"], [14, "gold*"], [15, "tree*"], [13, "gold*"], [4, "tree*"], [9, "tree*"], [15, "gold*"], [15, "tree"], [15, "gold*"], [16, "tree"], [16, "tree"], [14, "tree"], [16, "gold"], [15, "tree*"], [6, "tree*"], [4, "tree*"], [9, "water"], [16, "water"], [14, "tree"], [4, "tree*"], [17, "water"], [15, "gold*"], [16, "gold"], [4, "tree*"], [9, "gold"], [14, "tree"], [13, "gold*"], [16, "tree*"], [14, "gold*"], [15, "tree*"], [13, "gold*"], [4, "tree*"], [9, "tree*"], [15, "gold*"], [15, "tree"], [15, "gold*"], [16, "tree"], [16, "tree"], [14, "tree"], [16, "gold"], [15, "tree*"], [4, "tree*"], [15, "fire"], [16, "gold"], [15, "gold"], [15, "water"], [15, "moon"], [14, "tree"], [9, "moon"], [4, "tree*"], [9, "gold"], [15, "gold*"], [4, "tree*"], [17, "water"], [15, "gold*"], [16, "gold"], [4, "tree*"], [15, "tree"], [15, "gold*"], [16, "gold*"], [14, "tree"], [4, "tree*"], [16, "moon"], [16, "water"], [15, "gold*"], [14, "gold"], [16, "water"], [13, "gold*"], [15, "tree*"], [15, "tree*"], [15, "moon"], [15, "gold"], [14, "gold"], [9, "moon"]
m(_ _)m お詫び
あたかも復元可能なメッセージであるように告知していましたが、 追加情報なしでは全く復元できないものでした。 お詫び致します。
