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Arnab Chakraborty has Published 4293 Articles

Arnab Chakraborty
1K+ Views
Here we will see how to get the area of a leaf-like below, which is present inside the square ABCD. Each side of the square is of length ‘a’.The leaf has two equal parts. Area of each part is said p, now −And the area of the full leaf is ... Read More

Arnab Chakraborty
162 Views
Let us consider one semicircle is given. Its radius is R. One rectangle of length l and breadth b is inscribed in that semi-circle. Now one circle with radius r is inscribed in the rectangle. We have to find the area of the inner circle.As we know biggest rectangle that ... Read More

Arnab Chakraborty
176 Views
Here we will see how to get the arc length from the given angle. One circle is given. The radius of the circle is given. Our task is to get the arc length using the radius and the angle. The angle is in degree.Here r and x is given. We ... Read More

Arnab Chakraborty
251 Views
Here we will see one efficient way to check whether the nth Fibonacci term is multiple of 10 or not. Suppose the Fibonacci terms are {0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987}. So here 15th (Counting from 0) Fibonacci term is ... Read More

Arnab Chakraborty
871 Views
Here we will see some amazing results by using the system() function in C or C++. The system function is present in Windows, Linux and MAC operating systems. This function is used to execute the system commands that can be written in Command line.Here we will see two usages if ... Read More

Arnab Chakraborty
744 Views
In this section we will see how to generate all possible strings of any length, this will take each combination of characters to make string. For example, if the string is ABC, then it will generate − {A, B, C, AB, BA, BC, CB, CA, AC, ABC, ACB, BAC, BCA, ... Read More

Arnab Chakraborty
231 Views
Here we will see one problem, We have N and base B. Our task is to count all N digit numbers of base B without any leading 0s. So if N is 2 and B is 2 there will be four numbers 00, 01, 10, 11. So only two of ... Read More

Arnab Chakraborty
279 Views
Here we will see how to count number of co-prime pairs from the range, where a number will not appear more than a single pair.Before discussing the logic, let us see what are the co-prime numbers? The co-prime numbers are those numbers which has only one positive integer divisor, that ... Read More

Arnab Chakraborty
254 Views
Here we will see all possible binary numbers of n bit (n is given by the user) where the sum of each half is same. For example, if the number is 10001 here 10 and 01 are same because their sum is same, and they are in the different halves. ... Read More

Arnab Chakraborty
326 Views
Here we will see one simple problem. We have to find all numbers that are palindrome in nature in a given list. The approach is simple, take each number from list and check it is palindrome or not, and print the number.AlgorithmgetAllPalindrome(arr, n)Begin for each element e in arr, ... Read More