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Articles by Arnab Chakraborty
Page 84 of 377
C++ program to define exception for small username, and validate username
Suppose we have a string of usernames and we shall have to check whether username is valid or not based on few conditions. So we shall have to define an exception that is thrown when the length of username is less than 5 characters long. We shall have to return "Valid" for valid username, "Invalid" for invalid username and throw exception for smaller usernames. The valid username conditions are −Username must be five-character longThere should not two consecutive 'w' in the usernameSo, if the input is like unames = ["amit", "to", "paul_tim", "greg_harry", "towwer"], then the output will be [Too ...
Read MoreC++ program to add different items with class templates
Suppose we want to make a class that can add two integers, two floats and two strings (string addition is basically concatenating strings). As input at first we take a number n represents there are n different operations. In each operation the first item is the type [int, float, string] and second and third are two operands. So each line will contain three elements. We shall have to read them and do the operations as mentioned.So, if the input is like5 int 5 7 int 6 9 float 5.25 9.63 string hello world string love C++then the output will be12 ...
Read MoreC++ program to create one rectangle class and calculate its area
Suppose we have taken length and breadth of two rectangles, and we want to calculate their area using class. So we can make a class called Rectangle with two attributes l and b for length and breadth respectively. And define another function called area() to calculate area of that rectangle.So, if the input is like (10, 9), (8, 6), then the output will be 90 and 48 as the length and breadth of first rectangle is 10 and 9, so area is 10 * 9 = 90, and for the second one, the length and breadth is 8 and 6, ...
Read MoreC++ program to test inheritance through triangle class
Suppose we want to make one Triangle class and another child class called Isosceles. The triangle class has a function that prints that the object is of type triangle, and Isosceles has two functions to show that it is an isosceles triangle and one description. We also need to call the parent class function through Isosceles class object. There is no such proper input, we just call functions in proper way.So, if the input is like define an object called trg, then call trg.isosceles(), trg.description(), trg.triangle()., then the output will beThis is an isosceles triangleThere are two sides are equal ...
Read MoreC++ program to store student roll and name using map STL
Suppose we have a map data structure for students roll and name the roll is an integer data and name is string type data. In our standard input we provide n queries. In each query (in each line) there must be two elements and for type 1 query there are three elements. First one is the operator, second one is the roll and third one is the name, for two elements query the second item is the roll number. The operations are like below−Insert. This will insert the name into the map at corresponding rollDelete. This will delete the against ...
Read MoreC++ program to insert delete and find from set STL
Suppose we have a set data structure for integer type data. In our standard input we provide n queries. In each query (in each line) we have two elements. First one is the operator, second one is the element. The operations are like below −Insert. This will insert the element into the setDelete. This will delete the element from the set (if exists)Search. This will search the element into the set, if present show Yes, otherwise No.So, if the input is like n = 7, queries = [[1, 5], [1, 8], [1, 3], [2, 8], [1, 9], [3, 8], [3, ...
Read MoreC++ program to create boxes and calculate volume and check using less than operator
Suppose we shall have to define a box class with few conditions. These are as follows −There are three attributes l, b and h for length, breadth and height respectively, (these are private variables)Define one non-parameterized constructor to set l, b, h to 0, and one parameterized constructor to set values initially.Define getter methods for each attributeDefine a function calculateVolume() get the volume of the boxOverload less than operator (
Read MoreProgram to check existence of edge length limited paths in Python
Suppose we have one undirected weighted graph with n nodes using one edgeList, where edgeList[i] has three parameters (u, v, w) denotes there is a path from u to v whose distance is w. We also have another query array where query[i] has (p, q, lim). This query is trying to ask whether there is a path (direct or via some other node) from p to q whose distance is less than lim. We have to return an array holding True/False results for each query.So, if the input is likethen the output will be [True, False, True]. Because to go ...
Read MoreProgram to minimize deviation in array in Python
Suppose we have an array nums. We can perform two types of operations on any element of the array any number of timesFor even elements, divide it by 2For odd elements, multiply it by 2.Now the deviation of the array is the maximum difference between any two elements in the array. We have to find the minimum deviation the array can have after performing some number of operations. So, if the input is like nums = [6, 3, 7, 22, 5], then the output will be 5 because we can make our array in one operation [6, 6, 7, 22, ...
Read MoreProgram to distribute repeating integers in Python
Suppose we have an array nums, there are at most 50 unique values. We also have another array called quantity, where quantity[i] denotes the amount of values the ith customer ordered.We have to check whether it is possible to distribute nums such thatThe ith customer gets exactly quantity[i] items, The value that the ith customer gets are all equal, andAll customers are satisfied.So, if the input is like nums = [5, 1, 2, 2, 3, 4, 4, 3, 3] quantity = [2, 2, 3], then the output will be True because two customer wants two elements each, so they can ...
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