Question

How to print all distinct pairs from array with specific difference between them in C++

Answer 1

#include <iostream> 
 
void printPairsWithSpecificDifference(int arr[], int size, int difference) { 
    for (int i = 0; i < size; i++) {        
        for (int j = i + 1; j < size; j++) {
            if (arr[i] - arr[j] == difference || arr[j] - arr[i] == difference) {
                 std::cout << arr[i] << " " << arr[j] << "\n";
            }
        }
    } 
} 
   
int main() 
{ 
    int arr[] = {25, 16, 8, 12, 20, 17, 0, 4, 21, 26}; 
    int difference = 4; 

    int size = sizeof(arr)/sizeof(arr[0]); 
 
    printPairsWithSpecificDifference(arr, size, difference); 
     
    return 0; 
} 
 
 
 
 
/*
run:
   
25 21
16 12
16 20
8 12
8 4
17 21
0 4
   
*/

 

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