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Program to check if tank will overflow, underflow or filled in given time
• Difficulty Level : Easy
• Last Updated : 20 Apr, 2021

Given a tank with definite height and radius and the flow of water available to fill the tank. Determine whether the tank will overflow or not in a given amount of time.
Note: The flow of water will be available in volume per minute.
Examples:

```       --r=5--
----------   ^
|         |  |
|         |  |
|         |  h = 10
|         |  |
----------   ^

rate_of_flow = 10

Input : given_time = 10.0
Output : Underflow

Input : given_time = 100.0
Output : Overflow```

Approach:
Volume of a cylindrical tank is (22/7) * radius * radius * height. First, find out the amount of time required to completely fill the tank then compare it with the given time. If the given time is greater than required time, it will result in an overflow condition. If the given time is less than the required time then it will result in an underflow condition otherwise the tank is filled.
Below is the implementation of above approach:

## C++

 `// C++ program to check if Tank will``// overflow or not in given time``#include ``using` `namespace` `std;` `// function to calculate the volume of tank``float` `volume(``int` `radius, ``int` `height)``{``    ``return` `((22 / 7) * radius * radius * height);``}` `// function to print overflow / filled /``// underflow accordingly``void` `check_and_print(``float` `required_time,``                       ``float` `given_time)``{``    ``if` `(required_time < given_time)``        ``cout << ``"Overflow"``;``    ``else` `if` `(required_time > given_time)``        ``cout << ``"Underflow"``;``    ``else``        ``cout << ``"Filled"``;``}` `// driver function``int` `main()``{``    ``int` `radius = 5, ``// radius of the tank``        ``height = 10, ``// height of the tank``        ``rate_of_flow = 10; ``// rate of flow of water``        ` `    ``float` `given_time = 70.0; ``// time given``    ` `    ``// calculate the required time``    ``float` `required_time = volume(radius, height) /``                                    ``rate_of_flow;``    ` `    ``// printing the result``    ``check_and_print(required_time, given_time);``    ``return` `0;``}`

## Java

 `// Java program to check if Tank will``// overflow or not in given time` `class` `Number``{``    ``// function to calculate the volume of tank``    ``public` `static` `float` `volume(``int` `radius, ``int` `height)``    ``{``        ``return` `((``22` `/ ``7``) * radius * radius * height);``    ``}` `    ``// function to print overflow / filled /``    ``// underflow accordingly``    ``public` `static` `void` `check_and_print(``double` `required_time,``                                       ``double` `given_time)``    ``{``        ``if` `(required_time < given_time)``            ``System.out.print( ``"Overflow"` `);``        ``else` `if` `(required_time > given_time)``            ``System.out.print( ``"Underflow"` `);``        ``else``            ``System.out.print( ``"Filled"` `);``    ``}``    ` `    ``// driver code``    ``public` `static` `void` `main(String[] args)``    ``{``        ``int` `radius = ``5``, ``// radius of the tank``        ``height = ``10``, ``// height of the tank``        ``rate_of_flow = ``10``; ``// rate of flow of water``        ` `        ``double` `given_time = ``70.0``; ``// time given``    ` `        ``// calculate the required time``        ``double` `required_time = volume(radius, height) /``                                    ``rate_of_flow;``    ` `        ``// printing the result``        ``check_and_print(required_time, given_time);``    ``}``}` `// This code is contributed by rishabh_jain`

## Python3

 `# Python3 code to check if Tank will``# overflow or not in given time` `# function to calculate the volume of tank``def` `volume(radius, height):``    ``return` `((``22` `/` `7``) ``*` `radius ``*` `radius ``*` `height)``    ` `# function to print overflow / filled /``# underflow accordingly``def` `check_and_print( required_time, given_time):``    ` `    ``if` `required_time < given_time:``        ``print``( ``"Overflow"``)``    ``elif` `required_time > given_time:``        ``print``(``"Underflow"``)``    ``else``:``        ``print``(``"Filled"``)` `# driver code``radius ``=` `5` `# radius of the tank``height ``=` `10` `# height of the tank``rate_of_flow ``=` `10` `# rate of flow of water``        ` `given_time ``=` `70.0` `# time given``    ` `# calculate the required time``required_time ``=` `volume(radius, height) ``/``rate_of_flow``    ` `# printing the result``check_and_print(required_time, given_time)` `# This code is contributed by "Sharad_Bhardwaj".`

## C#

 `// C# program to check if Tank will``// overflow or not in given time``using` `System;` `class` `Number {``    ` `    ``// function to calculate the volume of tank``    ``public` `static` `float` `volume(``int` `radius, ``int` `height)``    ``{``        ``return` `((22 / 7) * radius * radius * height);``    ``}` `    ``// function to print overflow / filled /``    ``// underflow accordingly``    ``public` `static` `void` `check_and_print(``double` `required_time,``                                          ``double` `given_time)``    ``{``        ``if` `(required_time < given_time)``            ``Console.WriteLine(``"Overflow"``);``        ``else` `if` `(required_time > given_time)``            ``Console.WriteLine(``"Underflow"``);``        ``else``            ``Console.WriteLine(``"Filled"``);``    ``}` `    ``// driver code``    ``public` `static` `void` `Main()``    ``{``        ``int` `radius = 5, ``// radius of the tank``            ``height = 10, ``// height of the tank``            ``rate_of_flow = 10; ``// rate of flow of water` `        ``double` `given_time = 70.0; ``// time given` `        ``// calculate the required time``        ``double` `required_time = volume(radius, height) / rate_of_flow;` `        ``// printing the result``        ``check_and_print(required_time, given_time);``    ``}``}` `// This code is contributed by vt_m`

## PHP

 ` ``\$given_time``)``        ``echo``(``"Underflow"``);``    ``else``        ``echo``(``"Filled"``);``}` `// Driver code` `// radius of the tank``\$radius` `= 5;` `// height of the tank``\$height` `= 10;` `// rate of flow of water``\$rate_of_flow` `= 10;` `// time given       ``\$given_time` `= 70.0;``    ` `// calculate the required time``\$required_time` `= volume(``\$radius``, ``\$height``) /``                            ``\$rate_of_flow``;``    ` `// printing the result``check_and_print(``\$required_time``, ``\$given_time``);` `// This code is contributed by Ajit.``?>`

## Javascript

 ``

Output:

`Underflow`

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