Codeforces Round 185 (Div. 2)

2 problems from Codeforces Round 185 (Div. 2) (contest 312), difficulty 1100-1300. 1/2 solutions verified against sample I/O.

2 items

Codeforces Round 185 (Div. 2)

Div. 2 | 2 problems | 1/2 verified | Difficulty 1100-1300 | 3m 14s

#	Problem	Rating	Tags	Accepted	Time	✓
A	Whose sentence is it?	1100	implementation, strings	5,357	1m 30s
B	Archer	1300	math, probabilities	13,373	1m 44s	✓

Practice › Codeforces Solutions › Codeforces Round 185 (Div. 2) ›

CF 312B - Archer

Two archers shoot at a target alternately. SmallR shoots first and hits with probability $a/b$ on each shot. Zanoes hits with probability $c/d$ on each shot. As soon as someone lands the first hit of the match, the game ends and that player wins.

Practice › Codeforces Solutions › Codeforces Round 185 (Div. 2) ›

CF 312A - Whose sentence is it?

We are given a small chat log with up to 10 sentences. Each sentence is a string of letters, underscores, commas, periods, and spaces. Two people, Freda and Rainbow, are involved. According to prior experience, Freda always ends her sentences with the substring "lala.