## Sum of i * countDigits(i)^2 for all i in range [L, R]

Given a range [L, R], the task is to find the sum i * countDigits(i)2 for all i ∈ [L, R] where countDigits(i) is the… Read More »

- Arithmetic Progression
- Convert given array to Arithmetic Progression by adding an element
- Find the Nth term of the series 1 + 2 + 6 + 15 + 31 + 56 + ...
- Sum of first N natural numbers which are divisible by X or Y
- Sum of i * countDigits(i)^2 for all i in range [L, R]
- Program to find the angles of a quadrilateral
- Sum of multiples of A and B less than N
- Find the nth term of the series 0, 8, 64, 216, 512, . . .
- Find the sum of all multiples of 2 and 5 below N
- Series summation if T(n) is given and n is very large
- Arithmetic Mean
- Print first N terms of series (0.25, 0.5, 0.75, ...) in fraction representation

Given a range [L, R], the task is to find the sum i * countDigits(i)2 for all i ∈ [L, R] where countDigits(i) is the… Read More »

Given a sequence whose nth term is T(n) = n2 – (n – 1)2 The task is to evaluate the sum of first n terms… Read More »

Given an array arr[], the task is to find an element that can be added to the array in order to convert it to Arithmetic… Read More »

Given an integer N, the task is to print the first N terms of the series in their fraction form i.e. 1/4, 1/2, 3/4, 1,… Read More »

Given an integer N, the task is to find the Nth term of the following series: 0, 8, 64, 216, 512, 1000, 1728, . .… Read More »

Arithmetic mean, also called the average or average value, is the quantity obtained by summing two or more numbers or variables and then dividing by… Read More »

A sequence of numbers is called an Arithmetic progression if the difference between any two consecutive terms is always the same. In simple terms, it… Read More »

Given a number N. Given two numbers X and Y, the task is to find the sum of all those numbers from 1 to N… Read More »

Given a number N, the task is to find the sum of all the multiples of A and B below N. Examples: Input:N = 11,… Read More »

Given a number N. The task is to find the sum of all multiples of 2 and 5 below N ( N may be up… Read More »

Given an integer . The task is to write a program to find the N-th term of the given series: 1 + 2 + 6… Read More »

Given that all the angles of a quadrilateral are in AP having common difference ‘d’, the task is to find all the angles. Examples: Input:… Read More »

Given a number n. The task is to find the sum of numbers up to n, that are divisible 2 or 5. Examples: Input: n… Read More »

Given that the ratio to sum of first m and n terms of an A.P. with first term ‘a’ and commond difference ‘d’ is m^2:n^2.… Read More »

Given two values ‘m’ and ‘n’ and the 5th term of an arithmetic progression is zero. The task is to find the ratio of mth… Read More »