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Page 1311 of 2109
Program to find N-th term of series 7, 21, 49, 91, 147, 217, ...... in C++
In this problem, we are given a number n that denotes the nth term of the series. Our task is to create a program to find the N-th term of series 7, 21, 49, 91, 147, 217, …… in C++.Problem Description - We will find the nth term of the series 7, 21, 49, 91, 147, 217, … and for that, we will deduce the general term of the series.Let’s take an example to understand the problem, Input − N = 5Output − 147Solution Approach:Let’s deduce the general term of the given series. The series is −7, 21, 49, 91, ...
Read MoreProgram to find N-th term of series 9, 23, 45, 75, 113... in C++
In this problem, we are given an integer n that denotes the nth term of the series. Our task is to create a program to find N-th term of series 9, 23, 45, 75, 113… in C++.Problem Description − Here, we need to find the nth term of the series for which we will be finding the general term of the series.The series is 9, 23, 45, 75, 113, 159, 213, …Let’s take an example to understand the problem, Input − n = 5output − 159Solution Approach, The general term of the given series isNth term = ( ((2*N + ...
Read MoreCount common characters in two strings in C++
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 MoreProgram to find out the data type of user input in C++
In this problem, we are given input from the user. Our task is to create a program to find out the data type of user input in C++.Problem Description − We will take input from the user and check the data type of the input value.Let’s take an example to understand the problem, Example 1:Input − 34Output − It is an integerExample 2:Input − tutorialspointOutput − It is a stringSolution Approach:We will check if the input string is a number or not a number.If it is a number, we will check if it is an integer or a float value.If ...
Read MoreCount even and odd digits in an Integer in C++
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 MoreCount factorial numbers in a given range in C++
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 MoreCount digits in a factorial in C++
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 MoreCount Fibonacci numbers in given range in O(Log n) time and O(1) space in C++
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 MoreProgram to find Prime Numbers Between given Interval in C++
In this tutorial, we will be discussing a program to find prime numbers between given intervals.For this we would be provided with two integers. Our task is to find the prime numbers in that particular range.Example#include using namespace std; int main() { int a, b, i, j, flag; //getting lower range a = 3; //getting upper range b = 12; cout
Read MoreProgram to find remainder when large number is divided by 11 in C++
In this problem, we are given a string num which is a large number. Our task is to create a program to find remainder when large number is divided by 11 in C++.Problem Description − We need to find the remainder when the number defined by the string is divided by 11.Let’s take an example to understand the problemInputnum = “43212981843718452”Output7Solution ApproachTo find the remainder, we obviously need to divide the number. But dividing huge number is a complex process so to ease up the process, we will divide digit by digit. And store the remainder that follows. This process ...
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