Solutions:-
1) W.A.P. to display roots of a quadratic equation where coefficients a,b,c are given ?
 #include<iostream>
#include<cmath>
using namespace std;
int main()
{
int a,b,c;
float D,r1,r2;
cout<<"Enter the Coefficients of the quadratic equation-";
cin>>a>>b>>c;
D=pow(b,2) - (4*a*c);
if(D<0)
{cout<<"\nNo Real Roots";
return 0;}
else
{if(D>0)
{
cout<<"\nDistinct Real Roots\n";
r1=(-b + sqrt(D))/(2*a);
r2=(-b - sqrt(D))/(2*a);
cout<<"Roots ="<<r1<<" "<<r2;}
else{
cout<<"\nEqual Roots\n";r1=-b/(2*a);
cout<<"Root ="<<r1; }}
return 0;}
2) W.A.P. to check whether a given number is prime or not ?
 #include<iostream>
using namespace std;
int main()
{
 int n;
char p='Y';
 cout<<"Enter a number=";
 cin>>n;
if(n==1)
p='N';
for(int i=2;i<=n/2;i++)
if(n%i==0)
   {p='N';
     break; }
if(p=='Y')
cout<<"\n"<<n<<" is a prime number.";
else
cout<<"\n"<<n<<" is not a prime number.";
return 0;
}
3) W.A.P. to display all the factors of a given number along with the sum of the factors?

 #include<iostream>
using namespace std;
int main()
{ int n,sum=0;
 cout<<"Enter a number=";
 cin>>n;
 cout<<"\nFactors of "<<n<<" are \n";
for(int i=1;i<=n/2;i++)
{
if(n%i==0){
cout<<i<<'\n';
sum+=i;}
}
cout<<n<<'\n';
sum+=n;cout<<"\nSum of Factors="<<sum;
return 0;
}
We will try more of different problems in the upcoming blogs.
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