# Find number of candidates in the Exam

• Difficulty Level : Basic
• Last Updated : 27 May, 2021

Given the last rank ‘L’ and the number of candidates at the last rank ‘T’, the task is to find the total number of candidates in the Exam.

```Input: L = 5, T = 1
Output: 5

Input: L = 10, T = 2
Output: 11```

Approach:

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1. Suppose L = 5 and T = 2.
2. Then there can be many possible rank combinations, like 1, 2, 3, 3, 5, 5.
3. So now in this, as you can see, the last rank is 5 and there are 2 students at rank 5,
4. Therefore, the total number of candidates is 6.
5. This can be understood by a simple formula:
`L+T-1`

Below is the implementation of the above approach.

## C++

 `// C++ program to find total number of candidates``// in an Exam from given last rank``// and Number of student at this last rank.` `#include ``using` `namespace` `std;` `// Function to find total number of``// Participants in Exam.``int` `findParticipants(``int` `L, ``int` `T)``{``    ``return` `(L + T - 1);``}` `// Driver code``int` `main()``{``    ``int` `L = 10, T = 2;``    ``cout << findParticipants(L, T);` `    ``return` `0;``}`

## Java

 `// Java program to find total number of``// candidates in an Exam from given last rank``// and Number of student at this last rank.``class` `GFG``{` `    ``// Function to find total number of``    ``// Participants in Exam.``    ``static` `int` `findParticipants(``int` `L, ``int` `T)``    ``{``        ``return` `(L + T - ``1``);``    ``}` `    ``// Driver code``    ``public` `static` `void` `main(String args[])``    ``{``        ``int` `L = ``10``, T = ``2``;``        ``System.out.print(findParticipants(L, T));``    ``}``}` `// This code is contributed by Gowtham Yuvaraj`

## Python3

 `# Python3 program to find total number``# of candidates in an Exam from given last rank``# and Number of student at this last rank.` `# Function to find total number of``# Participants in Exam.``def` `findParticipants(L, T) :` `    ``return` `(L ``+` `T ``-` `1``);` `# Driver code``if` `__name__ ``=``=` `"__main__"` `:` `    ``L ``=` `10``; T ``=` `2``;``    ``print``(findParticipants(L, T));``    ` `# This code is contributed by AnkitRai01`

## C#

 `// C# program to find total number of``// candidates in an Exam from given last rank``// and Number of student at this last rank.``using` `System;` `class` `GFG``{` `    ``// Function to find total number of``    ``// Participants in Exam.``    ``static` `int` `findParticipants(``int` `L, ``int` `T)``    ``{``        ``return` `(L + T - 1);``    ``}` `    ``// Driver code``    ``public` `static` `void` `Main()``    ``{``        ``int` `L = 10, T = 2;``        ``Console.Write(findParticipants(L, T));``    ``}``}` `// This code is contributed by Gowtham Yuvaraj`

## Javascript

 ``
Output:
`11`

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