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Programming Articles
Page 1342 of 2547
Minimum Depth of Binary Tree in C++
Suppose we have a binary tree; we have to find the minimum depth of that tree. As we know the minimum depth is the number of nodes along the shortest path from the root node down to the nearest leaf node.So, if the input is likethen the output will be 2To solve this, we will follow these steps −Define an array aa of tree nodesinsert root at the end of aaDefine another array ak of tree nodeslevel := 0if root is null, then −return 0while size of aa is not equal to 0, do −clear the array ak(increase level by ...
Read MoreBus Routes in C++
Suppose we have a list of bus routes. In each routes[i] there is a bus route that the i-th bus repeats forever. So, if routes[0] = [1, 5, 7], this means that the first bus (0-th indexed) travels in the sequence 1, 5, 7, 1, 5, 7, 1, ... forever.Now suppose we start at bus stop S, initially not on a bus, and we want to go to bus stop T. we have to find the least number of buses we must take to reach our destination? If this is not possible then return -1.So if the input is like ...
Read MoreProgram to find the Area of a Parallelogram in C++
In this problem, we are given two values that denote the base and height of a parallelogram. Our task is to create a Program to find the Area of a Parallelogram in C++.Parallelogram is a four side closed figure that has opposite sides equal and parallel to each other.Let’s take an example to understand the problem, InputB = 20, H = 15Output300ExplanationArea of parallelogram = B * H = 20 * 15 = 300Solution ApproachTo solve the problem, we will use the geometrical formula for area of parallelogram, Area = base * height.Program to illustrate the working of our solution, ...
Read MoreRace Car in C++
Suppose we have a car, that starts at position 0 and speed +1 on an infinite number line. The car runs automatically according to a sequence of instructions A: for accelerate and R − for reverse. When we get an instruction "A", our car does the following −position := position + speed, then speed = speed * 2.When we get an instruction "R", our car does the following −if speed is positive then speed = -1, otherwise speed = 1.For example, after executing the instructions "AAR", our car goes to positions 0->1->3->3, and speed goes to 1->2->4->-1.Now suppose we have ...
Read MorePascal's Triangle II in C++
Suppose we have a non-negative index k where k ≤ 33, we have to find the kth index row of Pascal's triangle.So, if the input is like 3, then the output will be [1,3,3,1]To solve this, we will follow these steps −Define an array pascal of size rowIndex + 1 and fill this with 0for initialize r := 0, when r
Read MoreProgram to find the Area of a Pentagon in C++
In this problem, we are given a number n that denotes that side of the pentagon. Our task is to create a program to find the Area of a Pentagon in C++.Pentagon is a five-sided geometric figure.Regular pentagon is a pentagon with all five sides and angles equal.Let’s take an example to understand the problem,Inputa = 7Output84.3Program to illustrate the working of our solution,Example#include using namespace std; float calcpentagonArea(int a){ return ( ((6.8819)*a*a)/4); } int main() { int a = 7; cout
Read MorePalindrome Partitioning III in C++
Suppose we have a string s that is containing lowercase letters and an integer k. We have to maintain some properties. These are −First, we have to change some characters (if needed) of s to other lowercase English letters.Then divide the string s into k substrings such that each substring is a palindrome.We have to find the minimal number of characters that we need to change to divide the string.So if the string is like “ababbc” and k = 2, then the answer will be 1, as we have to change one character to split this into two palindrome strings. ...
Read MoreExcel Sheet Column Title in C++
Suppose we have a positive integer; we have to find its corresponding column title as appear in an Excel sheet. So [1 : A], [2 : B], [26 : Z], [27 : AA], [28 : AB] etc.So, if the input is like 28, then the output will be AB.To solve this, we will follow these steps −while n is non-zero, do −n := n - 1res := res + n mod 26 + ASCII of 'A'n := n / 26reverse the array resreturn resExample Let us see the following implementation to get a better understanding −#include using namespace std; class ...
Read MoreProgram to find the Break Even Point in C++
In this problem, we are given the three variables that denote total monthly expenditure (E), selling price (S) of the product, overhead maintenance (M) on each product. Our task is to create a program to find the Break Even Point in C++.Break-Even Point is the total number of products that are required to be sold so that there should not be any loss or profit for the seller.Problem Description − We need to find the total no. of products to be sold to make sure there is no loss.Let’s take an example to understand the problem, InputE = 2400, S ...
Read MoreProgram to find the Centroid of the Triangle in C++
In this problem, we are given a 2D array that denotes coordinates of three vertices of the triangle. Our task is to create a program to find the Centroid of the Triangle in C++.Centroid of a triangle is the point at which the three medians of the triangles intersect.Median of a triangle is the line that connects the vertex of the triangle with the center point of the line opposite to it.Let’s take an example to understand the problem, Input(-3, 1), (1.5, 0), (-3, -4)Output(-3.5, -1)ExplanationCentroid (x, y) = ((-3+2.5-3)/3, (1 + 0 - 4)/3) = (-3.5, -1)Solution ApproachFor solving ...
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