# Minimum value to be added to X such that it is at least Y percent of N

• Last Updated : 21 Apr, 2021

Given three integers N, X and Y, the task is to find the minimum integer that should be added to X to make it at least Y percent of N.

Examples:

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Input: N = 10, X = 2, Y = 40
Output:
Adding 2 to X gives 4 which is 40% of 10

Input: N = 10, X = 2, Y = 20
Output:
X is already 20% of 10

Approach: Find val = (N * Y) / 100 which is the Y percent of N. Now in order for X to be equal to val, val – X must be added to X only if X < val.

Below is the implementation of the above approach:

## C++

 `// C++ implementation of the approach``#include ``using` `namespace` `std;` `// Function to return the required value``// that must be added to x so that``// it is at least y percent of n``int` `minValue(``int` `n, ``int` `x, ``int` `y)``{` `    ``// Required value``    ``float` `val = (y * n) / 100;` `    ``// If x is already >= y percent of n``    ``if` `(x >= val)``        ``return` `0;``    ``else``        ``return` `(``ceil``(val) - x);``}` `// Driver code``int` `main()``{``    ``int` `n = 10, x = 2, y = 40;``    ``cout << minValue(n, x, y);``}`

## Java

 `// Java implementation of the approach``import` `java.lang.Math;` `class` `GFG``{``    ` `// Function to return the required value``// that must be added to x so that``// it is at least y percent of n``static` `int` `minValue(``int` `n, ``int` `x, ``int` `y)``{` `    ``// Required value``    ``float` `val = (y * n) / ``100``;` `    ``// If x is already >= y percent of n``    ``if` `(x >= val)``        ``return` `0``;``    ``else``        ``return` `(``int``)(Math.ceil(val)-x);``}` `// Driver code``public` `static` `void` `main(String[] args)``{``    ``int` `n = ``10``, x = ``2``, y = ``40``;``    ``System.out.println(minValue(n, x, y));``}``}` `// This code is contributed by Code_Mech.`

## Python3

 `import` `math` `# Function to return the required value``# that must be added to x so that``# it is at least y percent of n``def` `minValue(n, x, y):` `    ``# Required value``    ``val ``=` `(y ``*` `n)``/``100` `    ``# If x is already >= y percent of n``    ``if` `x >``=` `val:``        ``return` `0``    ``else``:``        ``return` `math.ceil(val) ``-` `x` `# Driver code``n ``=` `10``; x ``=` `2``; y ``=` `40``print``(minValue(n, x, y))`  `# This code is contributed by Shrikant13`

## C#

 `// C# implementation of the approach``using` `System;` `class` `GFG``{``    ` `    ``// Function to return the required value``    ``// that must be added to x so that``    ``// it is at least y percent of n``    ``static` `int` `minValue(``int` `n, ``int` `x, ``int` `y)``    ``{``    ` `        ``// Required value``        ``float` `val = (y * n) / 100;``    ` `        ``// If x is already >= y percent of n``        ``if` `(x >= val)``            ``return` `0;``        ``else``            ``return` `(``int``)(Math.Ceiling(val)-x) ;``    ``}``    ` `    ``// Driver code``    ``public` `static` `void` `Main()``    ``{``        ``int` `n = 10, x = 2, y = 40;``        ``Console.WriteLine((``int``)minValue(n, x, y));``    ``}``}` `// This code is contributed by Ryuga.`

## PHP

 `= y percent of n``    ``if` `(``\$x` `>= ``\$val``)``        ``return` `0;``    ``else``        ``return` `(``ceil``(``\$val``) - ``\$x``);``}` `// Driver code``{``    ``\$n` `= 10; ``\$x` `= 2; ``\$y` `= 40;``    ``echo``(minValue(``\$n``, ``\$x``, ``\$y``));``}` `// This code is contributed by Code_Mech.`

## Javascript

 ``
Output:
`2`

Time Complexity: O(1)

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