Discussion @ 1628. White Streaks @ Timus Online Judge

ahyangyi(newer id) Why this problem is classified as Data Structure? [2] // Problem 1628. White Streaks 12 Nov 2010 05:26

I feel this is somewhat misleading as Data Structure isn't necessary for this problem.

SkorKNURE Re: Why this problem is classified as Data Structure? // Problem 1628. White Streaks 29 Jan 2011 19:33

Agree. Solves with sort only.

luckysundog Re: Why this problem is classified as Data Structure? // Problem 1628. White Streaks 11 Dec 2011 10:44

Sorting is good, yes.

But it can be solved with data stuctures too. I used map<int,set<int> > and it gave slow AC (0.75 sec).

Discussion of Problem 1628. White Streaks