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Absolute Difference of even and odd indexed elements in an Array in C++?
An array is a container of multiple elements of the same data type. The index of elements start from 0 i.e. first element has index 0.
In this problem, we need to find the absolute difference between two even indexed number and two odd indexed numbers.
Even indexed number = 0,2,4,6,8….
Odd indexed number = 1,3,5,7,9…
Absolute difference is the modulus of difference between two elements.
For example,
Absolute difference of 15 and 7 = (|15 - 7|) = 8
Input: arr = {1 , 2, 4, 5, 8}
Output :
Absolute difference of even numbers = 4
Absolute difference of odd numbers = 3Explanation
Even elements are 1, 4,8
Absolute difference is
(|4 - 1|) = 3 and (|8 - 4|) = 4
Odd elements are 2,5
Absolute difference is
(|5- 2|) = 3
Example
#include <bits/stdc++.h>
using namespace std;
int main() {
int arr[] = { 1, 5, 8, 10, 15, 26 };
int n = sizeof(arr) / sizeof(arr[0]);
cout<<"The array is : \n";
for(int i = 0;i < n;i++){
cout<<" "<<arr[i];
int even = 0;
int odd = 0;
for (int i = 0; i < n; i++) {
if (i % 2 == 0)
even = abs(even - arr[i]);
else
odd = abs(odd - arr[i]);
}
cout << "Even Index absolute difference : " << even;
cout << endl;
cout << "Odd Index absolute difference : " << odd;
return 0;
}
}Output
The array is : 1 5 8 10 15 26 Even index absolute difference : 8 Odd index absolute difference : 21
Updated on: 03-Oct-2019
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