Find two numbers with sum and product both same as N in C++

In this tutorial, we will be discussing a program to find two numbers with sum and product both same as N.

For this we will be provided with an integer value. Our task is to find two other integer values whose product and sum is equal to the given value.

Example

Live Demo

#include <bits/stdc++.h>
using namespace std;
//finding a and b such that
//a*b=N and a+b=N
void calculateTwoValues(double N) {
   double val = N * N - 4.0 * N;
   if (val < 0) {
      cout << "NO";
      return;
   }
   double a = (N + sqrt(val)) / 2.0;
   double b = (N - sqrt(val)) / 2.0;
   cout << "Value of A:" << a << endl;
   cout << "Value of B:" << b << endl;
}
int main() {
   double N = 57.0;
   calculateTwoValues(N);
   return 0;
}

Output

Value of A:55.9818
Value of B:1.01819

Ayush Gupta

Updated on: 19-Aug-2020

121 Views

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