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- Remove an element to maximize the GCD of the given array
Given an array arr [] of length N ≥ 2 The task is to remove an element from the given array such that the GCD of the array after removing it is maximized Examples: Approach: In this approach, we iterate through each element of the array and remove it to get the remaining array
- Number of Different Subsequences GCDs - LeetCode
The GCD of a sequence of numbers is defined as the greatest integer that divides all the numbers in the sequence evenly For example, the GCD of the sequence [4,6,16] is 2 A subsequence of an array is a sequence that can be formed by removing some elements (possibly none) of the array
- Problem - 1749D - 1749D - Codeforces
$$$[1, 1]$$$ is a removal sequence: when you remove the $$$1$$$-st element of the array, the condition $$$gcd(42, 1) = 1$$$ holds, and the array becomes $$$[314]$$$; when you remove the $$$1$$$-st element again, the condition $$$gcd(314, 1) = 1$$$ holds, and the array becomes empty
- Remove an element to maximize the GCD of a given array
Since we have to remove only 1 element, what we can do is, we'll generate all possible sub-sequences of size N-1 of this array and find their GCD, after that, the maximum value of GCD would be our answer
- Number of Different Subsequences GCDs - Stack Overflow
A subsequence of an array is a sequence that can be formed by removing some elements (possibly none) of the array For example, [2,5,10] is a subsequence of [1,2,1,2,4,1,5,10] Return the number of different GCDs among all non-empty subsequences of nums
- Solved Suppose you have n elements in the array a numbered - Chegg
For example, let a=[42,314] : - [19,19] is a removal sequence: when you remove the 1-st element of the array, the condition gcd(42,19)=1 holds, and the array becomes [314]; when you remove the 1-st element again, the condition gcd(314,19)=1 holds, and the array becomes empty - [2,1] is not a removal sequence: when you try to remove the 2 -nd el
- Problem - 1629b - Codeforces
Consider the array $$$a$$$ composed of all the integers in the range $$$[l, r]$$$ For example, if $$$l = 3$$$ and $$$r = 7$$$, then $$$a = [3, 4, 5, 6, 7]$$$ Given $$$l$$$, $$$r$$$, and $$$k$$$, is it possible for $$$\gcd(a)$$$ to be greater than $$$1$$$ after doing the following operation at most $$$k$$$ times?
- Minimum Removals from Array to Make GCD Greater in C++
Learn how to determine the minimum number of removals from an array to make the GCD greater using C++ Step-by-step explanation and code examples included Discover how to calculate the minimum removals from an array to increase its GCD with our comprehensive C++ guide
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