# C++ Exercises: Calculate the volume of a Cone

## C++ Basic: Exercise-45 with Solution

Write a C++ program to calculate the volume of a cone.

**Sample Solution**:

**C++ Code :**

```
#include <iostream>
#include <string>
using namespace std;
int main ()
{
const float pi = 3.14159;
float R, H, V;
cout << "Input Cone's radius: ";
cin >> R;
cout << "Input Cone's height: ";
cin >> H;
// Cone's volume.
V = (1.0/3.0)*pi*(R*R)*H;
cout << "The volume of the cone is: " << V ;
return 0;
}
```

Sample Input: 5 3

Sample Output:

Input Cone's radius: Input Cone's height: The volume of the cone is: 78.5397

**Flowchart: **

**C++ Code Editor:**

** Contribute your code and comments through Disqus.**

**Previous:** Write a language program to get the volume of a sphere with radius 6.

**Next:** Write a program in C++ to calculate the volume of a cylinder.

**What is the difficulty level of this exercise?**

## C++ Programming: Tips of the Day

**Why is there no std::stou? **

The most pat answer would be that the C library has no corresponding "strtou", and the C++11 string functions are all just thinly veiled wrappers around the C library functions: The std::sto* functions mirror strto*, and the std::to_string functions use sprintf.

Ref: https://bit.ly/3wtz2qA

**Weekly Trends**- Python Interview Questions and Answers: Comprehensive Guide
- Scala Exercises, Practice, Solution
- Kotlin Exercises practice with solution
- MongoDB Exercises, Practice, Solution
- SQL Exercises, Practice, Solution - JOINS
- Java Basic Programming Exercises
- SQL Subqueries
- Adventureworks Database Exercises
- C# Sharp Basic Exercises
- SQL COUNT() with distinct
- JavaScript String Exercises
- JavaScript HTML Form Validation
- Java Collection Exercises
- SQL COUNT() function
- SQL Inner Join

We are closing our Disqus commenting system for some maintenanace issues. You may write to us at reach[at]yahoo[dot]com or visit us at Facebook