Hi everyone i was trying this question from Atcoder — https://atcoder.jp/contests/abc157/tasks/abc157_e↵
But im getting runtime error on my code. My approach is to build a segment tree where each node contains a map↵
of characters. And while we go up we keep on merging the maps into a single map and the return the size of the map↵
as a answer to the query. Im not getting any WA but RE. Please help.↵
Here is my submission↵
https://atcoder.jp/contests/abc157/submissions/47573702
But im getting runtime error on my code. My approach is to build a segment tree where each node contains a map↵
of characters. And while we go up we keep on merging the maps into a single map and the return the size of the map↵
as a answer to the query. Im not getting any WA but RE. Please help.↵
Here is my submission↵
https://atcoder.jp/contests/abc157/submissions/47573702
