c.cpp

https://www.geeksforgeeks.org/two-elements-whose-sum-is-closest-to-zero/# include <bits/stdc++.h> 
# include <stdlib.h> /* for abs() */ 
# include <math.h> 

using namespace std; 
void minAbsSumPair(int arr[], int arr_size) 
{ 
	int inv_count = 0; 
	int l, r, min_sum, sum, min_l, min_r; 
	
	/* Array should have at least 
	
	two elements*/
	if(arr_size < 2) 
	{ 
		cout << "Invalid Input"; 
		return; 
	} 
	
	/* Initialization of values */
	min_l = 0; 
	min_r = 1; 
	min_sum = arr[0] + arr[1]; 
	
	for(l = 0; l < arr_size - 1; l++) 
	{ 
		for(r = l + 1; r < arr_size; r++) 
		{ 
		sum = arr[l] + arr[r]; 
		if(abs(min_sum) > abs(sum)) 
		{ 
			min_sum = sum; 
			min_l = l; 
			min_r = r; 
		} 
		} 
	} 
	
	cout << "The two elements whose sum is minimum are "
		<< arr[min_l] << " and " << arr[min_r]; 
} 

// Driver Code 
int main() 
{ 
	int arr[] = {1, 60, -10, 70, -80, 85}; 
	minAbsSumPair(arr, 6); 
	return 0; 
} 

// This code is contributed 
// by Akanksha Rai(Abby_akku)