Server Side Programming Articles - Page 1784 of 2650

We are given a string of any length containing both uppercase and lowercase letters and the task is to compute the count of those characters that are at the same position as in english alphabets.For ExampleInput − String str = eBGD Output − Count is: 2Explanation − B and D are the characters that lie in the same order in english alphabets as B comes at second position and D comes at fourth position.Input − String str = Abcdeizxy Output − Count is: 5Explanation − A, B, C, D and E are the characters that lie in the same order ... Read More

We are given with an array of positive integers and the task is to calculate the count and sum of the composite elements in the given array.What are composite numbersFrom the given set of integers, the numbers that are not prime are called composite numbers except 1 which is neither composite nor prime instead it’s a unit number. So, it is clearly stated that a number can be either prime or composite except the number 1.The composite upto 100 are given below −4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, ... Read More

We are given a prime number let’s say, num and the task is to calculate the count of all the numbers less than 10^6 whose minimum prime factor is equal to num.For ExampleInput − num = 7 Output − Number of prime factors = 38095 Input − num = 3 Output − Number of prime factors = 16666Approach used in the below program is as followsInput the number let’s say numStart the loop, from i to 2 and i should be less than or equals to max value and increment the value of iInside the loop, check if s_prime[i] ... Read More

We are given the two numbers let’s say x and y and the task is to find the common prime factors between two numbers. Common prime factors can be found by firstly calculating the common numbers between two numbers and after that checking from the list of common factors the one which are prime numbers.For ExampleInput − x = 10 y = 20 Output − Common prime factor of two numbers are: 2 5Explanation − common primes factors between 10 and 20 are 2 and 5 only.Input − x = 34 y = 12 Output − Common prime factor of ... Read More

We are given the range having start and end numbers and the task is to calculate the total count of Fibonacci numbers available between the given range in O(Log n) time and O(1) space.What are Fibonacci numbersFibonacci numbers are the sequence of numbers known as Fibonacci sequence where every new number is the sum of the last two preceding numbers.Where, f(0) = 0 and f(1) = 1 i.e. f(0) and f(1) have fixed positions in the sequence and the calculation will start from the third number.Formula used for calculating the sequence is −Fn = Fn-1 + Fn-2Where, F0 = 0, ... Read More

We are given an integer value and the task is to first calculate the factorial of a number and then calculate the total number of digits in a result.What is a factorial numberFactorial of a number is calculated by multiplying the digits in a number while decrementing the value of digit by 1. It is denoted by the symbol ‘!’ i.e. 0!, 1!, 2!, 3!, 5!, ...., etc. Factorial of 0! and 1! is always 1.I.e. factorial of 2 = 2 * (2-1) = 2 * 1 = 2       factorial of 3 = 3 * (3-1) * ... Read More

We are given the range starting from an integer value holded by a variable let’s say start till the variable end and the task is to count the total number of factorial numbers available in the given range.What is a factorial numberFactorial of a number is calculated by multiplying the digits in a number while decrementing thevalue of digit by 1. It is denoted by the symbol ‘!’ i.e. 0!, 1!, 2!, 3!, 5!, ...., etc. Factorial of 0! and 1! is always 1.I.e. factorial of 2 = 2 * (2-1) = 2 * 1 = 2       ... Read More

We are given with an integer number and the task is to count the even numbers and the odd numbers in a digit. Also, we will keep check on whether the even digits in an integer are occurring an even number of times and also the odd digits in an integer are occurring an odd number of times.For ExampleInput − digit = 12345 Output − count for even digits = 2       count for odd digits = 3Explanation − Yes, Also, even digits are occurring even number of times i.e. 2 and odd digits are occurring odd number ... Read More

We are given with the two strings let’s say str1 and str2 and the task is to find the count of common characters in two strings i.e. if str1[i] = str[j], then they will be considered as a pair and count will increased to 1 and if str1[i]!=str2[j] then they willn’t be considered as a pair and count willn’t increase to 1.For ExampleInput − str1 = “hello”       str2 = “heoo” Output − count is: 3Explanation − str1[0] = str2[0] i.e. h ; str1[1] = str2[1] i.e. e ; str1[2]!=str2[2] i.e. l and o; str1[3]=str2[3] i.e. o. So, the ... Read More

We are given a string of any length and the task is to convert the string having uppercase letters to lowercase letters and lowercase letters to uppercase letters.For ExampleInput − string str = ”Welcome To The Site!”Output − wELCOME tO tHE sITE!Explanation − converted the letters W, T, T, S to lowercase and letters e, l, c, o, m, e, o, , i, t, e to uppercase and it doesn’t perform any operations to the special characters.Input − string str = ”HELLO”Output − helloExplanation − converted the letters H, E, L, L, E to lowercase.This can be done using two different approachesUsing inbuilt functions provided by ... Read More