C++ Exercises: Find k largest elements in a given array of integers.
C++ Array: Exercise-4 with Solution
Write a C++ program to find k largest elements in a given array of integers.
Pictorial Presentation:
Sample Solution:
C++ Code :
#include<iostream>
using namespace std;
void kLargest(int nums[], int n, int k)
{
sort(nums, nums+n, greater<int>());
cout << "\nLargest " << k << " Elements: ";
for (int i = 0; i < k; i++)
cout << nums[i] << " ";
}
int main()
{
int nums[] = {4, 5, 9, 12, 9, 22, 45, 7};
int n = sizeof(nums)/sizeof(nums[0]);
cout << "Original array: ";
for (int i=0; i < n; i++)
cout << nums[i] <<" ";
int k = 4;
kLargest(nums, n, k);
}
Sample Output:
Original array: 4 5 9 12 9 22 45 7 Largest 4 Elements: 45 22 12 9
Flowchart:
C++ Code Editor:
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