Minimum element left from the array after performing given operations
Given an array arr[] of N integers, the task is to remove the elements from both the ends of the array i.e. in a single operation, either the first or the last element can be removed from the current remaining elements of the array. This operation needs to be performed in such a way that the last element left will have the minimum possible value. Print this minimum value.
Examples:
Input: arr[] = {5, 3, 1, 6, 9}
Output: 1
Operation 1: arr[] = {5, 3, 1, 6}
Operation 2: arr[] = {5, 3, 1}
Operation 3: arr[] = {3, 1}
Operation 4: arr[] = {1}
Input: arr[] = {2, 6, 4, 8, 2, 6}
Output: 2
Approach: This problem can be solved greedily, the element with the maximum value from either of the end needs to be removed in a single operation. Following this approach until only one element is left in the array will give us the minimum element from the original array in the end.
Below is the implementation of the above approach:
C++
// C++ implementation of the approach #include <bits/stdc++.h> using namespace std; // Function to return the minimum possible // value of the last element left after // performing the given operations int getMin( int arr[], int n) { int minVal = *min_element(arr, arr + n); return minVal; } // Driver code int main() { int arr[] = { 5, 3, 1, 6, 9 }; int n = sizeof (arr) / sizeof (arr[0]); cout << getMin(arr, n); return 0; } |
Java
// Java implementation of the above approach import java.util.*; class GFG { // Function to return the minimum possible // value of the last element left after // performing the given operations static int getMin( int arr[], int n) { int minVal = Arrays.stream(arr).min().getAsInt(); return minVal; } // Driver code public static void main(String[] args) { int arr[] = { 5 , 3 , 1 , 6 , 9 }; int n = arr.length; System.out.println(getMin(arr, n)); } } // This code is contributed by 29AjayKumar |
Python3
# Python3 implementation of the approach # Function to return the minimum possible # value of the last element left after # performing the given operations def getMin(arr, n) : minVal = min (arr); return minVal; # Driver code if __name__ = = "__main__" : arr = [ 5 , 3 , 1 , 6 , 9 ]; n = len (arr); print (getMin(arr, n)); # This code is contributed by AnkitRai01 |
C#
// C# implementation of the above approach using System; using System.Linq; class GFG { // Function to return the minimum possible // value of the last element left after // performing the given operations static int getMin( int []arr, int n) { int minVal = arr.Min(); return minVal; } // Driver code public static void Main(String[] args) { int []arr = { 5, 3, 1, 6, 9 }; int n = arr.Length; Console.WriteLine(getMin(arr, n)); } } // This code is contributed by Rajput-Ji |
1
Recommended Posts:
- Minimum number of given operations required to reduce the array to 0 element
- Minimum pair sum operations to make array each element divisible by 4
- Maximum Possible Product in Array after performing given Operations
- Maximum sum of all elements of array after performing given operations
- Find the final sequence of the array after performing given operations
- Find the modified array after performing k operations of given type
- Number of array elements derivable from D after performing certain operations
- Number of elements from the array which are reachable after performing given operations on D
- Check if at least half array is reducible to zero by performing some operations
- Maximum count of equal numbers in an array after performing given operations
- Check if the last element of array is even or odd after performing a operation p times
- Minimum possible sum of array elements after performing the given operation
- Find an element in array such that sum of left array is equal to sum of right array
- Minimum operations required to make every element greater than or equal to K
- Closest greater or same value on left side for every element in array
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.