Smallest number among three numbers in C++

 #include<iostream>

using namespace std;

int main()

{

int num1,num2,num3;

cout<<"enter first number : ";

cin>>num1;

cout<<"enter second number : ";

cin>>num2;

cout<<"enter third number : ";

cin>>num3;

  cout<<"\t Program to find smallest number among three number\n";

  if(num1<=num2)

  {

  if(num1<num3)

  {

  cout<<num1<<" is smallest number ";

  }

  else

  {

  cout<<num3<<" is smallest number ";

  }

  }

  else if(num2<=num1)

  {

  if(num2<num3)

  {

  cout<<num2<<" is smallest number ";

  }

  else

  {

  cout<<num3<<" is smallest number ";

  }

  }

}

Output:

enter first number : 12

enter second number : 22

enter third number : 23

         Program to find smallest number among three number

12 is smallest number

OR

By using a new variable smallest

#include<iostream>

using namespace std;

int main()

{

int x,y,z,smallest;

cout<<"enter first number ";

cin>>x;

cout<<"enter second number ";

cin>>y;

cout<<"enter third number ";

cin>>z;

smallest=x;

if(y<smallest)

smallest=y;

if(z<smallest)

smallest=z;

cout<<"\nsmallest number is : "<<smallest;

return 0;

}

Output:

enter first number 12

enter second number 22

enter third number 3

smallest number is : 3

OR

#include<iostream>

using namespace std;

int main()

{

int x,y,z;

cout<<"enter first number ";

cin>>x;

cout<<"enter second number ";

cin>>y;

cout<<"enter third number ";

cin>>z;

if(x<y && x<z)

{

cout<<"x is smallest number ";

}

else if(y<x && y<z)

{

cout<<"y is smallest number";

}

else

{

cout<<"z is smallest number ";

}

}

Output:

enter first number 12

enter second number 22

enter third number 33

x is smallest number