Step-by-step explanation:
# include <bits/stdc++.h>
using namespace std;
bool find3Numbers(int A[], int arr_size, int sum)
{
 int l, r;
 sort(A, A+arr_size);
 for (int i=0; i<arr_size-2; i++)
 {
 l = i + 1;
 r = arr_size-1;
 while (l < r)
 {
 if( A[i] + A[l] + A[r] == sum)
 {
 printf("Triplet is %d, %d, %d", A[i],
 A[l], A[r]);
 return true;
 }
 else if (A[i] + A[l] + A[r] < sum)
 l++;
 else // A[i] + A[l] + A[r] > sum
 r--;
 }
 }
 return false;
}
int main()
{
 int A[] = {1, 4, 3, 2, 10, 8};
 int sum = 22;
 int arr_size = sizeof(A)/sizeof(A[0]);
 find3Numbers(A, arr_size, sum);
 return 0;
}