Find N integers with given difference between product and sum
Last Updated :
23 Aug, 2022
Given two integers N and D, Find a set of N integers such that the difference between their product and sum is equal to D.
Examples:
Input : N = 2, D = 1
Output : 2 3
Explanation:
product = 2*3 = 6,
Sum = 2 + 3 = 5.
Hence, 6 - 5 = 1(D).
Input : N = 3, D = 5.
Output : 1 2 8
Explanation :
Product = 1*2*8 = 16
Sum = 1+2+8 = 11.
Hence, 16-11 = 5(D).
A tricky solution is to keep the difference D to choose N numbers as N-2 '1's, one '2' and one remaining number as 'N+D'.
Sum = (N-2)*(1) + 2 + (N+D) = 2*N + D.
Product = 1*2*(N+D) = 2*N+2*D
Difference = (2*N+2*D) - (2*N+D) = D.
C++
// CPP code to generate numbers
// with difference between
// product and sum is D
#include <iostream>
using namespace std;
// Function to implement calculation
void findNumbers(int n, int d)
{
for (int i = 0; i < n - 2; i++)
cout << "1" << " ";
cout << "2" << " ";
cout << n + d << endl;
}
// Driver code
int main()
{
int N = 3, D = 5;
findNumbers(N, D);
return 0;
}
Java
// Java code to generate numbers
// with difference between
// product and sum is D
import java.io.*;
class GFG {
// Function to implement calculation
static void findNumbers(int n, int d)
{
for (int i = 0; i < n - 2; i++)
System.out.print("1" + " ");
System.out.print("2" + " ");
System.out.println(n + d);
}
// Driver code
public static void main(String args[])
{
int N = 3, D = 5;
findNumbers(N, D);
}
}
/* This code is contributed by Nikita Tiwari.*/
Python3
# Python3 code to generate numbers with
# difference between product and sum is D
# Function to implement calculation
def pattern(n, d) :
for i in range(0, n - 2) :
print("1", end=" ")
print("2", end=" ")
print(n + d)
# Driver code
N = 3
D = 5
pattern(N, D)
# This code is contributed by 'Akanshgupta'
C#
// C# code to generate numbers
// with difference between
// product and sum is D
using System;
class GFG {
// Function to implement calculation
static void findNumbers(int n, int d)
{
for (int i = 0; i < n - 2; i++)
Console.Write("1" + " ");
Console.Write("2" + " ");
Console.Write(n + d);
}
// Driver code
public static void Main()
{
int N = 3, D = 5;
findNumbers(N, D);
}
}
/* This code is contributed by vt_m.*/
PHP
<?php
// PHP code to generate numbers
// with difference between
// product and sum is D
// Function to implement
// calculation
function findNumbers($n, $d)
{
for ($i = 0; $i < $n - 2; $i++)
echo "1" ," ";
echo "2" , " ";
echo $n + $d ,"\n";
}
// Driver Code
$N = 3;
$D = 5;
findNumbers($N, $D);
// This code is contributed by ajit
?>
JavaScript
<script>
// JavaScript program to generate numbers
// with difference between
// product and sum is D
// Function to implement calculation
function findNumbers(n, d)
{
for (let i = 0; i < n - 2; i++)
document.write("1" + " ");
document.write("2" + " ");
document.write(n + d);
}
// Driver code
let N = 3, D = 5;
findNumbers(N, D);
</script>
Output :
1 2 8
Time complexity : O(n)
Auxiliary Space : O(1)
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