Max count is a count which is the maximum possible. Here we have given an integer N and a string of integer M. Our task is to return the maximum count of making the number N using the digits of the string of integer M. Also given that, we can be treated 2 and 5, and, 6 and 9 can be same respectively. Sample Examples Input 1 N = 29 M = "2569783" Output 1: 2 Explanation − As 5 is the same as 2 and 6 is the same as 9 so we have a total of two ... Read More

Inserting a number in the given number means adding a new given digit in the given number either at the front, end, or in between the numbers. We have given a number and a digit and have to add the digit in the number in a way such that the resultant new number will be minimum as possible. We will convert the number into a string to make the work of insertion easy. Also, the given number can be negative also so we have to consider this case. Sample Examples Input1 Given number: 124 Given digit: 3 Output: 1234 ... Read More

A string will be given to us of length five which represents the time in the HH:MM format. There may be some ‘?’ present in the string and we have to replace them with any number such that the result is the valid time which could be the maximum possible. Also, the given string numbers will be valid, and ‘:’ will be present at the exact position of the string. We will use the two approaches first the brute force, and another the efficient approach. Sample Examples Input 1 Given string: 12:5? Output: 12:59 Explanation We have only one ... Read More

An array is a homogeneous data structure, which is used to store a set of elements of the same data type. And each element in the array is identified by key or index value. Subarray A subarray is defined as a small part of continuous elements of an array. if we take an array of 5 integer elements like below. [9, 3, 1, 6, 9] Then the subarrays will be − [9, 3] [9, 3, 1] [3, 1, 6, 9] Arrays in Python In Python we don't have a specific data structure to represent arrays. However, ... Read More

Generating all possible strings is to replace a character of a string with a respective symbol and produce all possible strings. We will be given a string ‘s’ of size ‘N’ and an unordered map ‘mp’ of a pair of characters of size ‘M’. Here we can replace the mp[i][0] with mp[i][1] in the string ‘s’ and by doing this our task is to generate all possible strings. Sample Examples Input: s = “xyZ”, mp = {‘x’ : ‘$’, ‘y’ : ‘#’, ‘Z’ : ‘^’} Output: xyZ xy^ x#Z z#^ $yZ $y^ $#Z $#^ Explanation − In the ... Read More

In programming array is a data structure, which is used to store collection of homogeneous data elements. And each element in the array is identified by an index value. But Python doesn’t have a specific data type to represent arrays. Instead, we can use the List as an array. Arrays in Python Here, we are representing List as an array. [1, 4, 6, 5, 3] The indexing in python starts from 0, so that the above array elements are accessed using their respective index values 0, 1, 2, 3, 4. Pushing an array into another array means, ... Read More

A binary string is a string that consists of only two different types of characters and that is ‘0’ and ‘1’. We will be given a binary string and the number m. We have to apply the operation to convert all the consecutive occurrences of the 0 and 1 that are ‘01’ and ‘10’ to ‘11’. One more condition is there that there must be only one neighbor of ‘0’ can be ‘1’. We can traverse over the string only m times where m will be given. Let’s understand with the following example Input 1: Given binary string: ‘01000101’ Given ... Read More

An array is a data structure consisting of a collection of elements of the same data type, and each element is identified by an index. [2, 4, 0, 5, 8] Arrays in Python Python does not have its own data structure to represent an array. Instead, we can use the list data structure to represent an array. Here, we will use list an array − [10, 4, 11, 76, 99] In the article, we will write a python programs to convert an array to a string and join elements with a specified character. ... Read More

Fibbinary Numbers are numbers that have no consecutive 1s in their binary representation. However, they can have consecutive zeros in their binary representation. Binary representation is the representation in which the numbers are shown with base 2 and only two digits that are 1 and 0 only. Here, we will be given a number and have to find whether the given number is the fibbinary number or not. Input 1: Given number: 10 Output: Yes Explanation − The binary representation of the given number 10 is 1010 which shows that, there is no consecutive one in the binary form. ... Read More

In the normal number system, 0 is the smallest digit while 9 is the largest digit. In this problem, we will be given a list of the length 10, and starting from index 0 to index 9 it represents a digit, which indicates the priority of that digit and the list will be in increasing order means the digit present at the last index is the with highest priority. We will be given a number also and we have to find the next number which is the just greater than the current number. Input 1: Given number = “123” ... Read More