C. Sereja and Brackets time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Sereja has a bracket sequence s1, s2, ..., sn, or, in other words, a string s of length n, consisting of characters "(…
Brackets Sequence Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 27793 Accepted: 7885 Special Judge Description Let us define a regular brackets sequence in the following way: 1. Empty sequence is a regular sequence. 2. If S is a re…
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Coloring Brackets time limit per test: 2 seconds memory limit per test: 256 megabytes input: standard input output: standard output Once Petya read a problem about a bracket sequence. He gave it much thought but didn't find a solution. Today you will…
Brackets Sequence Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 29502 Accepted: 8402 Special Judge Description Let us define a regular brackets sequence in the following way: 1. Empty sequence is a regular sequence. 2. If S is a re…
Description Let us define a regular brackets sequence in the following way: 1. Empty sequence is a regular sequence. 2. If S is a regular sequence, then (S) and [S] are both regular sequences. 3. If A and B are regular sequences, then AB is a regular…
Brackets Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 3624 Accepted: 1879 Description We give the following inductive definition of a “regular brackets” sequence: the empty sequence is a regular brackets sequence, if s is a regular…