Codeforces Round 189 (Div. 2)

Solutions for Codeforces Round 189 (Div. 2) (contest 320). 0/1 problems verified against sample I/O. Difficulty range: 1500-1500.

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Codeforces Round 189 (Div. 2)

Type: Div. 2 | Problems: 1 | Verified: 0/1 | Rating range: 1500-1500 | Time: 3m 52s

Problem	Name	Rating	Tags	Solve Time	Verified
B	Ping-Pong (Easy Version)	1500	dfs-and-similar, graphs	3m 52s	✗

Practice › Codeforces Solutions › Codeforces Round 189 (Div. 2) ›

CF 320B - Ping-Pong (Easy Version)

We are maintaining a growing collection of intervals, each interval identified by its insertion order. Along with building this collection, we also define a directed reachability relation between intervals.