Java Map
You are given a phone book that consists of people's names and their phone number. After that you will be given some person's name as query. For each query, print the phone number of that person. Input Format The first line will have an integer n denoting the number of entries in the phone book. Each entry consists of two lines: a name and the corresponding phone number. After these, there will be some queries. Each query will contain a person's name. Read the queries until end-of-file.
View Solution →Java Stack
In computer science, a stack or LIFO (last in, first out) is an abstract data type that serves as a collection of elements, with two principal operations: push, which adds an element to the collection, and pop, which removes the last element that was added.(Wikipedia) A string containing only parentheses is balanced if the following is true: 1. if it is an empty string 2. if A and B are correct, AB is correct, 3. if A is correct, (A) and {A} and [A] are also correct. Examples of some correct
View Solution →Java Hashset
In computer science, a set is an abstract data type that can store certain values, without any particular order, and no repeated values(Wikipedia). {1,2,3} is an example of a set, but {1,2,3} is not a set. Today you will learn how to use sets in java by solving this problem. You are given n pairs of strings. Two pairs (a,b) and (c,d) are identical if a=c and b=d. That also implies (a,b) is not same as(b,a) . After taking each pair as input, you need to print number of unique pairs you currentl
View Solution →C++ Class Template Specialization
You are given a main function which reads the enumeration values for two different types as input, then prints out the corresponding enumeration names. Write a class template that can provide the names of the enumeration values for both types. If the enumeration value is not valid, then print unknown. Input Format The first line contains t , the number of test cases. Each of the t subsequent lines contains two space-separated integers. The first integer is a color value, c, and the second
View Solution →C++ Variadics
A template parameter pack is a template parameter that accepts zero or more template arguments (non-types, types, or templates). To read more about parameter pack, click here. Create a template function named reversed_binary_value. It must take an arbitrary number of bool values as template parameters. These booleans represent binary digits in reverse order. Your function must return an integer corresponding to the binary value of the digits represented by the booleans. For example: reversed_
View Solution →