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Page 1139 of 2109
Find a Number X whose sum with its digits is equal to N in C++
In this tutorial, we are going to find a number whose some including with its digits is equal to the given number N.The idea is simple, we are going to check the left and right 100 numbers of the given number. It won't lie out that bound as N ≤ 1000000000 and the sum won't exceed 100.Let's see the steps to solve the problem.Initialize the number.Write a loop that iterates 100 times.Get the n - i and n + i values.Find the sum of the digits and add them.If anyone of them is equal to the N, print them.ExampleLet's see ...
Read MoreFind a partition point in array in C++
In this tutorial, we are going to find the partition point in an array where all the elements left to the partition point are small and all the elements right to the partition point are large.Let's see the steps to solve the problem.Initialize the array.Iterate over the array.Iterate from 0 to I and check each value whether it is smaller than the current value or not.Iterate from I to n and check each value whether it is larger than the current value or not.If the bot the conditions satisfied, then return the value.Print the partition point.ExampleLet's see the code.#include ...
Read MoreFind a peak element in Linked List in C++
In this tutorial, we are going to write a program that finds the peak element in the given linked list.The peak element is an element that is greater than the surrounding elements. Let's see the steps to solve the problem.Create a struct node for the linked list.Create the linked list with dummy data.Check for the base cases like whether the linked list is empty or of length 1.Store the first element in a variable called previous.Iterate over the linked list.Check whether the current element is greater than the previous element and the next element.Return if the above condition satisfies.Update the ...
Read MoreFind a peak element in C++
In this tutorial, we are going to write a program that finds the peak element in the given arrayThe peak element is an element that is greater than the surrounding elements. Let's see the steps to solve the problem.Initialize the array with dummy data.Check for the first element and last element for the peak element condition.Iterate over the array from the second element.Check whether the current element is greater than the previous element and the next element.Return if the above condition satisfies.Print the resultExampleLet's see the code.#include using namespace std; int findPeakElement(int arr[], int n) { if (n ...
Read MoreFind a triplet that sum to a given value in C++
In this tutorial, we are going to write a program that finds the triplet in the array whose sum is equal to the given number.Let's see the steps to solve the problem.Create the array with dummy data.Write three inner loops for three elements which iterate until the end of the array.Add the three elements.Compare the sum with the given number.If both are equal, then print the elements and break the loops.ExampleLet's see the code.#include using namespace std; bool findTriplet(int arr[], int arr_size, int sum) { for (int i = 0; i < arr_size - 2; i++) { ...
Read MoreFind a value whose XOR with given number is maximum in C++
In this tutorial, we are going to write a program that finds the number whose XOR operation with the given number is maximum.We are assuming the number of bits here is 8.The XOR operation of different bits gives you the 1 bit. And the XOR operation between the same bits gives you the 0 bit.If we find the 1's complement of the given number, then that's the number we are looking for.ExampleLet's see the code.#include using namespace std; int findNumberWithMaximumXOR(int X) { return ((1
Read MoreFind all triplets with zero sum in C++
In this tutorial, we are going to write a program that finds the triplet in the array whose sum is equal to the given number.Let's see the steps to solve the problem.Create the array with dummy data.Write three inner loops for three elements that iterate until the end of the array.Add the three elements.Compare the sum with 0.If both are equal, then print the elements and break the loops.ExampleLet's see the code.#include using namespace std; void findTripletsWithSumZero(int arr[], int n){ bool is_found = false; for (int i = 0; i < n-2; i++) { for ...
Read MoreFind all divisors of a natural number - Set 1 in C++
In this tutorial, we are going to write a program that finds all the divisors of a natural number. It's a straightforward problem. Let's see the steps to solve it.Initialize the number.Write a loop that iterates from 1 to the given number.Check whether the given number is divisible by the current number or not.If the above condition satisfies, then print the current number.ExampleLet's see the code.#include using namespace std; void findDivisors(int n) { for (int i = 1; i
Read MoreFind all divisors of a natural number - Set 2 in C++
In this tutorial, we are going to write a program that finds all the divisors of a natural number. It's a straightforward problem. Let's see the steps to solve it.Initialize the number.Write a loop that iterates from 1 to the square root of the given number.Check whether the given number is divisible by the current number or not.If the above condition satisfies, then print the current number and given_number/current_number.ExampleLet's see the code.#include using namespace std; void findDivisors(int n) { for (int i = 1; i
Read MoreFind amount of water wasted after filling the tank in C++
In this tutorial, we are going to solve the following problem.Given a tank with a capacity of N liters and a pump that fill the tank with S speed per minute. Unfortunately, there is a hole in the tank. And water is wasting at a speed of WS per minute while filling it.We need to calculate the amount of water wasted for a full tank.The amount of water filled per minute is equal to the difference between the water filling water and wasting water speed.Hence we can get the total time to fill the water tank by dividing the capacity ...
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