# Check if all objects of type A and B can be placed on N shelves

Given two integers **A** and **B**, representing the count of objects of two different types, and another integer **N** which represents the number of shelves, the task is to place all objects in the given N shelves abiding by the following rules:

- Any shelf cannot contain both Type-A and Type-B objects at the same time.
- No shelf can contain more than
**K**objects of Type-A or**L**objects of type B.

If it is possible to place all the items in N shelves, print **“YES”**. Otherwise, print **“NO”**.**Examples:**

Input:A = 3, B = 3, N = 3, K = 4, M = 2Output:YESExplanation:

3 Type-A items can be placed on 1 shelf, as maximum limit is 4.

3 Type-B items can be placed on 2 shelves, as maximum limit is 2.

Since the required number of shelves does not exceed N, so allocation is possible.Input:A = 6, B = 7, N = 3, K = 4, L = 5Output:NOExplanation:

6 Type-A items require 2 shelves, as maximum limit is 4.

7 Type-B items require 2 shelves, as maximum limit is 5.

Since the required number of shelves exceeds N, so allocation is not possible.

**Approach:**

To solve the problem, we need to count the minimum number of shelves required to place all objects and check if it exceeds** N** or not. Follow the steps below:

- Count the minimum number of items required to place
**Type-A**items, say**needa**. Since,**K**Type-A items can be placed at most in a single shelf, following two conditions arise:- If
*A is divisible by K*, all Type-A items can be placed in**A / K**shelves. - Otherwise,
**A % K**items needs to be placed in 1 shelf and the rest in**A / K**shelves.Hence**A/ K + 1**shelves are required for this case.

- If
- Similarly, calculate the minimum number of shelves required to place Type-B items, say
**needb**.

- If
**needa + needb**exceeds**N**, allocation is not possible. Otherwise, it is possible.

Below is the implementation of the above approach.

## C++

`// C++ implementation of the above approach` `#include <bits/stdc++.h>` `using` `namespace` `std;` `// Function to return if allocation` `// is possible or not` `bool` `isPossible(` `int` `A, ` `int` `B, ` `int` `N,` ` ` `int` `K, ` `int` `L)` `{` ` ` `// Stores the shelves needed` ` ` `// for items of type-A and type-B` ` ` `int` `needa, needb;` ` ` `// Find number of shelves` ` ` `// needed for items of type-A` ` ` `if` `(A % K == 0)` ` ` `// Fill A / K shelves fully` ` ` `// by the items of type-A` ` ` `needa = A / K;` ` ` `// Otherwise` ` ` `else` ` ` `// Fill A / L shelves fully` ` ` `// and add remaining to an` ` ` `// extra shelf` ` ` `needa = A / K + 1;` ` ` `// Find number of shelves` ` ` `// needed for items of type-B` ` ` `if` `(B % L == 0)` ` ` `// Fill B / L shelves fully` ` ` `// by the items of type-B` ` ` `needb = B / L;` ` ` `else` ` ` `// Fill B / L shelves fully` ` ` `// and add remaining to an` ` ` `// an extra shelf` ` ` `needb = B / L + 1;` ` ` `// Total shelves needed` ` ` `int` `total = needa + needb;` ` ` `// If required shelves exceed N` ` ` `if` `(total > N)` ` ` `return` `false` `;` ` ` `else` ` ` `return` `true` `;` `}` `// Driver Program` `int` `main()` `{` ` ` `int` `A = 3, B = 3, N = 3;` ` ` `int` `K = 4, M = 2;` ` ` `if` `(isPossible(A, B, N, K, M))` ` ` `cout << ` `"YES"` `<< endl;` ` ` `else` ` ` `cout << ` `"NO"` `<< endl;` ` ` `return` `0;` `}` |

## Java

`// Java implementation of the above approach` `class` `GFG{` `// Function to return if allocation` `// is possible or not` `static` `boolean` `isPossible(` `int` `A, ` `int` `B,` ` ` `int` `N, ` `int` `K,` ` ` `int` `L)` `{` ` ` ` ` `// Stores the shelves needed` ` ` `// for items of type-A and type-B` ` ` `int` `needa, needb;` ` ` `// Find number of shelves` ` ` `// needed for items of type-A` ` ` `if` `(A % K == ` `0` `)` ` ` `// Fill A / K shelves fully` ` ` `// by the items of type-A` ` ` `needa = A / K;` ` ` `// Otherwise` ` ` `else` ` ` `// Fill A / L shelves fully` ` ` `// and add remaining to an` ` ` `// extra shelf` ` ` `needa = A / K + ` `1` `;` ` ` `// Find number of shelves` ` ` `// needed for items of type-B` ` ` `if` `(B % L == ` `0` `)` ` ` `// Fill B / L shelves fully` ` ` `// by the items of type-B` ` ` `needb = B / L;` ` ` `else` ` ` `// Fill B / L shelves fully` ` ` `// and add remaining to an` ` ` `// an extra shelf` ` ` `needb = B / L + ` `1` `;` ` ` `// Total shelves needed` ` ` `int` `total = needa + needb;` ` ` `// If required shelves exceed N` ` ` `if` `(total > N)` ` ` `return` `false` `;` ` ` `else` ` ` `return` `true` `;` `}` `// Driver code` `public` `static` `void` `main(String[] args)` `{` ` ` `int` `A = ` `3` `, B = ` `3` `, N = ` `3` `;` ` ` `int` `K = ` `4` `, M = ` `2` `;` ` ` `if` `(isPossible(A, B, N, K, M))` ` ` `System.out.print(` `"YES"` `+ ` `"\n"` `);` ` ` `else` ` ` `System.out.print(` `"NO"` `+ ` `"\n"` `);` `}` `}` `// This code is contributed by amal kumar choubey` |

## Python3

`# Python3 implementation of the` `# above approach` `# Function to return if allocation` `# is possible or not` `def` `isPossible(A, B, N, K, L):` ` ` ` ` `# Stores the shelves needed` ` ` `# for items of type-A and type-B` ` ` `needa ` `=` `0` ` ` `needb ` `=` `0` ` ` `# Find number of shelves` ` ` `# needed for items of type-A` ` ` `if` `(A ` `%` `K ` `=` `=` `0` `):` ` ` `# Fill A / K shelves fully` ` ` `# by the items of type-A` ` ` `needa ` `=` `A ` `/` `/` `K;` ` ` `# Otherwise` ` ` `else` `:` ` ` `# Fill A / L shelves fully` ` ` `# and add remaining to an` ` ` `# extra shelf` ` ` `needa ` `=` `A ` `/` `/` `K ` `+` `1` ` ` `# Find number of shelves` ` ` `# needed for items of type-B` ` ` `if` `(B ` `%` `L ` `=` `=` `0` `):` ` ` `# Fill B / L shelves fully` ` ` `# by the items of type-B` ` ` `needb ` `=` `B ` `/` `/` `L` ` ` `else` `:` ` ` `# Fill B / L shelves fully` ` ` `# and add remaining to an` ` ` `# an extra shelf` ` ` `needb ` `=` `B ` `/` `/` `L ` `+` `1` ` ` `# Total shelves needed` ` ` `total ` `=` `needa ` `+` `needb` ` ` `# If required shelves exceed N` ` ` `if` `(total > N):` ` ` `return` `False` ` ` `else` `:` ` ` `return` `True` `# Driver Code ` `if` `__name__` `=` `=` `'__main__'` `:` ` ` ` ` `A, B, N ` `=` `3` `, ` `3` `, ` `3` ` ` `K, M ` `=` `4` `, ` `2` ` ` `if` `(isPossible(A, B, N, K, M)):` ` ` `print` `(` `'YES'` `)` ` ` `else` `:` ` ` `print` `(` `'NO'` `)` `# This code is contributed by rutvik_56` |

## C#

`// C# implementation of the above approach` `using` `System;` `class` `GFG{` `// Function to return if allocation` `// is possible or not` `static` `bool` `isPossible(` `int` `A, ` `int` `B,` ` ` `int` `N, ` `int` `K,` ` ` `int` `L)` `{` ` ` ` ` `// Stores the shelves needed` ` ` `// for items of type-A and type-B` ` ` `int` `needa, needb;` ` ` `// Find number of shelves` ` ` `// needed for items of type-A` ` ` `if` `(A % K == 0)` ` ` `// Fill A / K shelves fully` ` ` `// by the items of type-A` ` ` `needa = A / K;` ` ` `// Otherwise` ` ` `else` ` ` `// Fill A / L shelves fully` ` ` `// and add remaining to an` ` ` `// extra shelf` ` ` `needa = A / K + 1;` ` ` `// Find number of shelves` ` ` `// needed for items of type-B` ` ` `if` `(B % L == 0)` ` ` `// Fill B / L shelves fully` ` ` `// by the items of type-B` ` ` `needb = B / L;` ` ` `else` ` ` `// Fill B / L shelves fully` ` ` `// and add remaining to an` ` ` `// an extra shelf` ` ` `needb = B / L + 1;` ` ` `// Total shelves needed` ` ` `int` `total = needa + needb;` ` ` `// If required shelves exceed N` ` ` `if` `(total > N)` ` ` `return` `false` `;` ` ` `else` ` ` `return` `true` `;` `}` `// Driver code` `public` `static` `void` `Main(String[] args)` `{` ` ` `int` `A = 3, B = 3, N = 3;` ` ` `int` `K = 4, M = 2;` ` ` `if` `(isPossible(A, B, N, K, M))` ` ` `Console.Write(` `"YES"` `+ ` `"\n"` `);` ` ` `else` ` ` `Console.Write(` `"NO"` `+ ` `"\n"` `);` `}` `}` `// This code is contributed by Rohit_ranjan` |

## Javascript

`<script>` `// JavaScript program to implement` `// the above approach` `// Function to return if allocation` `// is possible or not` `function` `isPossible(A, B, N, K, L)` `{` ` ` ` ` `// Stores the shelves needed` ` ` `// for items of type-A and type-B` ` ` `let needa, needb;` ` ` ` ` `// Find number of shelves` ` ` `// needed for items of type-A` ` ` `if` `(A % K == 0)` ` ` ` ` `// Fill A / K shelves fully` ` ` `// by the items of type-A` ` ` `needa = Math.floor(A / K);` ` ` ` ` `// Otherwise` ` ` `else` ` ` ` ` `// Fill A / L shelves fully` ` ` `// and add remaining to an` ` ` `// extra shelf` ` ` `needa = Math.floor(A / K) + 1;` ` ` ` ` `// Find number of shelves` ` ` `// needed for items of type-B` ` ` `if` `(B % L == 0)` ` ` ` ` `// Fill B / L shelves fully` ` ` `// by the items of type-B` ` ` `needb = Math.floor(B / L);` ` ` ` ` `else` ` ` ` ` `// Fill B / L shelves fully` ` ` `// and add remaining to an` ` ` `// an extra shelf` ` ` `needb = Math.floor(B / L) + 1;` ` ` ` ` `// Total shelves needed` ` ` `let total = needa + needb;` ` ` ` ` `// If required shelves exceed N` ` ` `if` `(total > N)` ` ` `return` `false` `;` ` ` `else` ` ` `return` `true` `;` `}` `// Driver code` ` ` `let A = 3, B = 3, N = 3;` ` ` `let K = 4, M = 2;` ` ` ` ` `if` `(isPossible(A, B, N, K, M))` ` ` `document.write(` `"YES"` `+ ` `"<br/>"` `);` ` ` `else` ` ` `document.write(` `"NO"` `+ ` `"<br/>"` `);` `// This code is contributed by sanjoy_62.` `</script>` |

**Output:**

YES

**Time complexity:** O(1) **Auxiliary Space:** O(1)