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Page 1112 of 2109
Find N'th item in a set formed by sum of two arrays in C++
In this problem, we are given two sorted arrays arr1[] and arr2[] of size m and an element N. Our task is to Find Nth item in a set formed by the sum of two arrays.Code description − Here, we will create a set that consists of the sum of element one of arr1 and one of arr2 i.e. sum = arr1[i] + arr2[j], where are i , j < m. For N, we need to find the value of the Nth element of the set.Let’s take an example to understand the problem, Inputarr1[] = {3, 1, 5} , arr2[] = ...
Read MoreFind n'th number in a number system with only 3 and 4 in C++
In this problem, we are given an element N. we need to find the N’th number in a number system with only 3 and 4.The number system consists of elements 3, 4, 33, 34, 43, 44, 333, 334, 343, 344, …Let’s take an example to understand the problem, InputN = 6Output44ExplanationThe numbers of the number system are − 3, 4, 33, 34, 43, 44...Solution ApproachThe number system is similar to the binary number system but the number 0 is replaced by 3 and number 1 is replaced by 4.Let’s say this as sBinary.So, number Nth number is (n-1)’s Sbinary conversion.With ...
Read MoreFind next greater number with same set of digits in C++
In this problem, we are given an element N. We need to find the next greater number with the same set of digits. We need to find the smallest number with the same digit which is greater than N.Let’s take an example to understand the problem, InputN = "92534"Output92543Solution ApproachA simple solution to the problem to find the next greater element is by the following approach −Traverse the number from least significant bit to most significant bit. And stop when the current element is smaller than the last element.After this search for the smallest element in the remaining array. And ...
Read MoreFind nth Hermite number in C++
In this problem, we are given an integer value N. Our task is to create a program to Find nth Hermite number.Hermite Number is a number is the value of hermite number when there are 0 arguments.Nth hermite Number is HN = (-2) * (N - 1) * H(N-2) The base values are H0 = 1 and H0 = 0.The hermite sequence is − 1, 0, -2, 0, 12, 0, -120, 0, 1680, 0….Let’s take an example to understand the problem, InputN = 7Output0InputN = 6Output-120Solution ApproachA simple solution to the problem is using the formula for hermite number. This ...
Read MoreC++ program to find Nth number of the series 1, 6, 15, 28, 45, .....
In this problem, we are given an integer value N. Our task is to create a program to Find Nth number of the series 1, 6, 15, 28, 45, …In the series, every element is 2 less than the mean of the previous and next element.Let’s take an example to understand the problem, InputN = 5Output45Solution ApproachThe Nth term of the series 1, 6, 15, 28, 45, … can be found using the formula, TN = 2*N*N - NProgram to illustrate the working of our solution, Example#include using namespace std; #define mod 1000000009 int calcNthTerm(long n) { return ...
Read MoreC++ program to find Nth term of series 1, 4, 15, 72, 420...
In this problem, we are given an integer N. Our task is to create a program to Find Nth term of series 1, 4, 15, 72, 420…Let’s take an example to understand the problem, InputN = 4Output72Solution ApproachA simple approach to solve the problem is the formula for the Nth term of the series. For this, we need to observe the series and then generalise the Nth term.The series can be seen as the product of factorial and a some variables, 1, 4, 15, 72, 420… 1!*(X1), 2!*(X2), 3!*(X3), 4!*(X4), 5!*(X5)... 1*(1), 2*(2), 6*(5/2), 24*(3), 120*(7/2)...Here, the series of product ...
Read MoreC++ program to find Nth term of the series 0, 2, 4, 8, 12, 18...
In this problem, we are given an integer N. Our task is to create a program to Find Nth term of series 0, 2, 4, 8, 12, 18…Let’s take an example to understand the problem, InputN = 5Output12Solution ApproachA simple approach to solve the problem is the formula for the Nth term of the series. For this, we need to observe the series and then generalise the Nth term.The formula of Nth term isT(N) = ( N + (N - 1)*N ) / 2Program to illustrate the working of our solution, Example#include using namespace std; int calcNthTerm(int N) { ...
Read MoreC++ program to find nth Term of the Series 1 2 2 4 4 4 4 8 8 8 8 8 8 8 8 ...
In this problem, we are given an integer N. Our task is to create a program to Find Nth term of series 1, 2, 2, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8…Let’s take an example to understand the problem, InputN = 7Output4Solution ApproachA simple approach to solve the problem is using a loop to find the term at the nth position. The terms will be updated by doubling after each iteration. And adding it to the term counter.Program to illustrate the working of our solution, Example#include using namespace std; int calcNthTerm(int N) { ...
Read MoreC++ program to Find Nth term of the series 1, 1, 2, 6, 24...
In this problem, we are given an integer N. Our task is to create a program to Find Nth term of series 1,1, 2, 6, 24, ...Let’s take an example to understand the problem,InputN = 7Output720ExplanationThe series is − 1, 1, 2, 6, 24, 120, 720Solution ApproachA simple approach to solve the problem is by using the general formula for the nth term of the series. The formula for,Nth term = (N−1)!Program to illustrate the working of our solution,Example#include using namespace std; int calcNthTerm(int N) { if (N
Read MoreC++ program to find Nth term of the series 1, 5, 32, 288 ...
In this problem, we are given an integer N. Our task is to create a program to Find Nth term of series 1,5, 32, 288 ...Let’s take an example to understand the problem,InputN = 4Output288Explanation4th term − (4^4) + (3^3) + (2^2) + (1^1) = 256 + 27 + 4 + 1 = 288Solution ApproachA simple approach to solve the problem is by using the general formula for the nth term of the series. The formula for,Nth term = ( N^N ) + ( (N-1)^(N-1) ) + … + ( 2^2 ) + ( 1^1 )Program to illustrate the working of our solution,Example#include using namespace std; int calcNthTerm(int N) { if (N
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