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Articles by Ayush Gupta
Page 35 of 44
Program to print an inverse pyramid character pattern in C++
In this tutorial, we will be discussing a program to print an inverse pyramid character pattern.For this we will be provided with the number of rows containing in the inverted pyramid triangle. Our task is to print the alphabets in the given number of rows to develop the shape of an inverse pyramid.Example#include using namespace std; //printing the inverse pyramid pattern void inv_pyramid(int n){ int i, j, num, gap; for (i = n; i >= 1; i--) { for (gap = n - 1; gap >= i; gap--) { cout
Read MoreProgram to invert bits of a number Efficiently in C++
In this tutorial, we will be discussing a program to invert bits of a number efficiently.For this we will be given with a non-negative number. Our task is to convert the number in the binary format, invert the binary bits of the number. And then finally print the decimal equivalent of the number.Example#include using namespace std; //inverting bits of number int invert_bit(int n){ int x = log2(n) ; int m = 1
Read MoreProgram to make a histogram of an array in C++
In this tutorial, we will be discussing a program to make a histogram by the data given inside an array.For this, we will be provided with integer values inside an array. Our task is to plot a histogram keeping the value of both coordinates x and y equal to the value provided in the array.Example#include using namespace std; void make_histogram(int arr[], int n){ int maxEle = *max_element(arr, arr + n); for (int i = maxEle; i >= 0; i--) { cout.width(2); cout
Read MoreProgram to print 'N' alphabet using the number pattern from 1 to n in C++
In this tutorial, we will be discussing a program to print ‘N’ alphabet using the number pattern from 1 to n.For this we will have to print the english alphabet N. Our task is to determine the size of the letter and print it back using the numbers from 1 to n.Example#include using namespace std; //printing the letter N void print_N(int N){ int index, side_index, size; int Right = 1, Left = 1, Diagonal = 2; for (index = 0; index < N; index++) { cout
Read MoreProgram to print 2D shapes in C++
In this tutorial, we will be discussing a program to print out 2D shapes.For this we will be provided with the various parameters required to make a shape such as radius, side length and side breadth, etc. And our task is to print a shape accordingly with no thickness.Example#include using namespace std; void print_circle(int radius){ for (int i = 0; i
Read MoreC++ program to find two numbers with sum and product both same as N
In this tutorial, we will be discussing a program to find two numbers (say ‘a’ and ‘b’) such that botha+b = N and a*b = N are satisfied.Eliminating ‘a’ from both the equations, we get a quadratic equation in ‘b’ and ‘N’ i.eb2 - bN + N = 0This equation will have two roots which will give us the value of both ‘a’ and ‘b’. Using the determinant method to find the roots, we get the value of ‘a’ and ‘b’ as, $a= (N-\sqrt{N*N-4N)}/2\ b= (N+\sqrt{N*N-4N)}/2 $Example#include //header file for the square root function #include using namespace std; ...
Read MoreC++ program to find uncommon characters in two given strings
In this article, we will be discussing a program to find out the uncommon characters during comparison of two different given strings.As we know, strings are nothing but an array of characters. Therefore, for comparison we would be traversing through the characters of one string and simultaneously checking if that element exists in the other string.If we let the first string be A and the second string B.Then it would give us A - B. Similarly we can calculate B - A.Combining both of these results we would get( A - B ) ∪ ( B - A )i.e the ...
Read MoreC++ program to find union and intersection of two unsorted arrays
In this article, we will be discussing a program to find the union and intersection of two given unsorted arrays.Let us denote the two arrays with ‘A’ and ‘B’. Then union of those arrays is denoted by A ∪ B which is basically an array of all the elements in both the given arrays; provided that each element repeats only once.To find this, we will create a separate array and copy down all the elements from the first array. Then we will traverse through the elements of the second array and check if it is already present in the union ...
Read MoreC++ program to find unique pairs such that each element is less than or equal to N
In this article, we will be discussing a program to find unique pairs of numbers having elements less than or equal to N and following some certain conditions −The square of difference between the two numbers must be equal to the LCM of those two numbers.The HCF of those two numbers can be represented as a product of any two consecutive numbers.The best approach to solve this problem would be to take two consecutive numbers (starting from 1) and finding the multiples of product of those numbers. Then among the multiples, to specify to one pair of numbers we need ...
Read MoreC++ program to find ways an integer can be expressed as sum of n-th power of unique natural numbers
In this article, we will be discussing a program to find ways an integer (say X) can be expressed as sum of n-th power of unique natural numbers.For example, let X = 100 and n = 2Then there would be 3 ways to express 100 as sum of squares of natural numbers.100 = 102 100 = 62 + 82 100 = 12 + 32 + 42 + 52 + 72This can be done easily by using recursion. We would start from 1 and go till the n-th root of the given number. In every run, we would subtract the n-th ...
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