Arnab Chakraborty has Published 3296 Answers

Biggest Reuleaux Triangle inscirbed within a square inscribed in a semicircle?

Arnab Chakraborty
Arnab Chakraborty
Published on 01-Aug-2019 11:29:36
Here we will see the area of biggest Reuleax triangle inscribed within a square which is inscribed in a semicircle. Suppose the radius of the semicircle is R, are side of the square is ‘a’ and the height of the Reuleax triangle is h.We know that the side of the ... Read More

Array with GCD of any of its subset belongs to the given array?

Arnab Chakraborty
Arnab Chakraborty
Published on 01-Aug-2019 11:25:29
Here we will see one interesting problem. There is a set of N elements. We have to generate an array such that the GCD of any subset of that array lies in the given set of elements. And another constraint is that the generated array should not be more than ... Read More

Array sum after dividing numbers from previous?

Arnab Chakraborty
Arnab Chakraborty
Published on 01-Aug-2019 11:23:31
Here we will see one interesting problem. We will take one array, then find the sum by taking each element after dividing it by the previous elements. Let us consider an array is {5, 6, 7, 2, 1, 4}. Then the result will be 5 + (6 / 5) + ... Read More

Array elements with prime frequencies?

Arnab Chakraborty
Arnab Chakraborty
Published on 01-Aug-2019 11:19:15
Suppose we have one array. we have to count how many of the elements present in the array prime number of times. So if the array is {1, 2, 2, 0, 1, 5, 2, 5, 0, 0, 1, 1}, then 1 is present 4 times, 2 is present 3 times, ... Read More

Array elements that appear more than once?

Arnab Chakraborty
Arnab Chakraborty
Published on 01-Aug-2019 11:17:09
Here we will see one problem. We have one array. our task is to find those elements whose frequencies are more than 1. Suppose the elements are {1, 5, 2, 5, 3, 1, 5, 2, 7}. Here 1 has occurred 2 times, 5 has occurred 3 times and 2 has ... Read More

Array element with minimum sum of absolute differences?

Arnab Chakraborty
Arnab Chakraborty
Published on 01-Aug-2019 11:15:23
Here we will see one interesting problem. We are taking one array ‘a’ with N elements. We have to find an element x such that |a[0] - x| + |a[1] - x|+ … + |a[n-1] - x| is minimized. Then we have to find the minimized sum.Let the array is: ... Read More

Array element moved by k using single moves?

Arnab Chakraborty
Arnab Chakraborty
Published on 01-Aug-2019 11:11:30
Suppose we have an array that has n elements from 1 to n in shuffled order. Another integer K is given. There are N peoples they are standing in a queue to play badminton. The first two players will go for playing, then the loser will go and place at ... Read More

Arrangement of words without changing the relative position of vowel and consonants?

Arnab Chakraborty
Arnab Chakraborty
Published on 01-Aug-2019 11:07:03
Suppose we have a string with n elements (n < 10). We have to find the number of ways that the string can be arranged without changing the relative position of the vowel and consonants.The approach is simple. We have to count the number of vowels and consonants in the ... Read More

Arrange first N natural numbers such that absolute difference between all adjacent elements > 1?

Arnab Chakraborty
Arnab Chakraborty
Published on 01-Aug-2019 11:04:44
We have the first N natural numbers. Our task is to get one permutation of them where the absolute difference between every two consecutive elements is > 1. If no such permutation is present, return -1.The approach is simple. We will use the greedy approach. We will arrange all odd ... Read More

Area of Reuleaux Triangle?

Arnab Chakraborty
Arnab Chakraborty
Published on 01-Aug-2019 11:02:32
Here we will see how to calculate the area of Reuleaux Triangle like below. The Reuleaux Triangle has one equilateral triangle inside it. Suppose its height is h, this shape is made by the intersection of three circles.There are three circular sectors. The area of each sector is −Since the ... Read More
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