pairs with difference k Algorithm
Specific methods for carrying out paired difference tests are, for normally distributed difference t-test (where the population standard deviation of difference is not known) and the paired Z-test (where the population standard deviation of the difference is known), and for differences that may not be normally distributed the Wilcoxon signed-rank test. In statistics, a paired difference test is a type of location test that is used when comparing two sets of measurements to assess whether their population means differ.
/**
*
* You are given with an array of integers and an integer K.
* Write a program to find and print all pairs which have difference K.
*
* Sample Input 1 :
* 4
* 5 1 2 4
* 3
* Sample Output 1 :
* 2 5
* 1 4
* */
#include <iostream>
using namespace std;
void printPairs(int *input, int n, int k)
{
int hash[10000];
for (int i = 0; i < n; i++)
{
for (int j = i + 1; j < n; j++)
{
if ((input[i] - input[j]) == k)
cout << input[j] << " " << input[i] << endl;
else if ((input[j] - input[i]) == k)
cout << input[i] << " " << input[j] << endl;
}
}
}
int main()
{
int n;
cin >> n;
int *input = new int[n];
for (int i = 0; i < n; i++)
{
cin >> input[i];
}
int k;
cin >> k;
printPairs(input, n, k);
}
