/******************************************************************************
Boundary Value Analysis : Nature of Roots of a Quadratic equation
*******************************************************************************/
// C++ program to check the nature of the roots
#include <bits/stdc++.h>
using namespace std;
// BVA for nature of roots of a quadratic equation
void nature_of_roots(int a, int b, int c)
{
// If a = 0, D/2a will yield exception
// Hence it is not a valid Quadratic Equation
if (a == 0) {
cout << "Not a Quadratic Equation"
<< endl;
return;
}
int D = b * b - 4 * a * c;
// If D > 0, it will be Real Roots
if (D > 0) {
cout << "Real Roots" << endl;
}
// If D == 0, it will be Equal Roots
else if (D == 0) {
cout << "Equal Roots" << endl;
}
// If D < 0, it will be Imaginary Roots
else {
cout << "Imaginary Roots" << endl;
}
}
// Function to check for all testcases
void checkForAllTestCase()
{
cout << "Testcase"
<< "\ta\tb\tc\tActual Output"
<< endl;
cout << endl;
int a, b, c;
int testcase = 1;
while (testcase <= 13) {
if (testcase == 1) {
a = 0;
b = 50;
c = 50;
}
else if (testcase == 2) {
a = 1;
b = 50;
c = 50;
}
else if (testcase == 3) {
a = 50;
b = 50;
c = 50;
}
else if (testcase == 4) {
a = 99;
b = 50;
c = 50;
}
else if (testcase == 5) {
a = 100;
b = 50;
c = 50;
}
else if (testcase == 6) {
a = 50;
b = 0;
c = 50;
}
else if (testcase == 7) {
a = 50;
b = 1;
c = 50;
}
else if (testcase == 8) {
a = 50;
b = 99;
c = 50;
}
else if (testcase == 9) {
a = 50;
b = 100;
c = 50;
}
else if (testcase == 10) {
a = 50;
b = 50;
c = 0;
}
else if (testcase == 11) {
a = 50;
b = 50;
c = 1;
}
else if (testcase == 12) {
a = 50;
b = 50;
c = 99;
}
else if (testcase == 13) {
a = 50;
b = 50;
c = 100;
}
cout << "\t" << testcase << "\t"
<< a << "\t" << b << "\t"
<< c << "\t";
nature_of_roots(a, b, c);
cout << endl;
testcase++;
}
}
// Driver Code
int main()
{
checkForAllTestCase();
return 0;
}
