Flipping Parentheses 题目连接: http://codeforces.com/gym/100803/attachments Description A string consisting only of parentheses '(' and ')' is called balanced if it is one of the following. • A string "()" is balanced. • Concatenation of two balance…
ACM International Collegiate Programming Contest Asia Regional Contest, Tokyo, 2014–10–19 Problem G Flipping Parentheses Input: Standard Input Time Limit: 5 seconds A string consisting only of parentheses ‘(’ and ‘)’ is called balanced if it is one o…
Description A string consisting only of parentheses '(' and ')' is called balanced if it is one of the following. A string "()" is balanced. Concatenation of two balanced strings are balanced. When a string s is balanced, so is the concatenation…
2014-2015 ACM-ICPC, Asia Tokyo Regional Contest A B C D E F G H I J K O O O O O O A - Bit String Reordering 签到 #include <bits/stdc++.h> using namespace std; ; ]; int temp[N]; int put(int opt) { ] = {}; ; ; i <= m; i++) { int num = p[i];…
Problem A. Alien Communication Masterclass Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100610 Description Andrea is a famous science fiction writer, who runs masterclasses for her beloved readers. The most popular one is the…
http://codeforces.com/gym/100633/problem/B B. Dispersed parentheses time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output The sequence of calculations in arithmetic expressions is usually set by…
Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. Note: The input string may contain letters other than the parentheses ( and ). Examples: "()())()" -> ["()()()",…
Given a string of numbers and operators, return all possible results from computing all the different possible ways to group numbers and operators. The valid operators are +, -and *. Example 1 Input: "2-1-1". ((2-1)-1) = 0 (2-(1-1)) = 2 Output: …
Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the longest valid parentheses substring is "()", which has length = 2. Another example is &…
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: "((()))", "(()())", "(())()", "()(())", "()()()" 在LeetCo…
Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in the correct order, "()" and "()[]{}" are all valid but "(]" and "([)]"…
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: [ "((()))", "(()())", "(())()", "()(())", "()()()" ] pub…
题目简述: Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: "((()))", "(()())", "(())()", "()(())", "()()()" 解…
Gym 101047M Removing coins in Kem Kadrãn Time Limit:2000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Practice Description standard input/output Andréh and his friend Andréas are board-game aficionados. They know many of their friend…
Gym 101047K Training with Phuket's larvae Time Limit:2000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Practice Description standard input/output Thai cuisine is known for combining seasonings so that every dish has flavors that are…
Gym 101047E Escape from Ayutthaya Time Limit:2000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Practice Description standard input/output Ayutthaya was one of the first kingdoms in Thailand, spanning since its foundation in 1350 to…
Gym 101047B Renzo and the palindromic decoration Time Limit:2000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Practice Description standard input/output At the ruins of Wat Phra Si Sanphet (วดพระศรสรรเพชญ), one can find famous inscr…
问题: Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: [ "((()))", "(()())", "(())()", "()(())", "()()()" ]…
Different Ways to Add Parentheses Given a string of numbers and operators, return all possible results from computing all the different possible ways to group numbers and operators. The valid operators are+, - and *. Example 1 Input: "2-1-1". ((…
Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the longest valid parentheses substring is "()", which has length = 2. Another example is &…
Generate Parentheses Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in the correct order, "()" and "()[]{}" are all valid but "(]"…
241. Different Ways to Add Parentheses https://leetcode.com/problems/different-ways-to-add-parentheses/ 思路就是:首先找到以运算符为根节点,分别计算左子串和右子串的所有结果的集合,然后依次进行组合计算.参考博客http://www.cnblogs.com/ganganloveu/p/4681439.html. 自己的思路错了,直接用两边只用了一个整数去接收左右子串的计算值!! #include…
题目链接 http://codeforces.com/gym/101102/problem/J Description standard input/output You are given an array A of integers of size N, and Q queries. For each query, you will be given a set of distinct integers S and two integers L and R that represent a…
题目链接 http://codeforces.com/gym/100917/problem/J Description standard input/outputStatements The jury of Berland regional olympiad in informatics does not trust to contest management systems, so the Berland regional programming contest is judged by th…
