In this program, user is asked to enter three numbers.
Then this program finds out the largest number among three numbers entered by user and displays it with proper message.
This program can be used in more than one way.
Example 1: Find Largest Number Using if Statement
#include <iostream>
using namespace std;
int main()
{
float n1, n2, n3;
cout << "Enter three numbers: ";
cin >> n1 >> n2 >> n3;
if(n1 >= n2 && n1 >= n3)
{
cout << "Largest number: " << n1;
}
if(n2 >= n1 && n2 >= n3)
{
cout << "Largest number: " << n2;
}
if(n3 >= n1 && n3 >= n2) {
cout << "Largest number: " << n3;
}
return 0;
}
Example 2: Find Largest Number Using if...else Statement
#include <iostream>
using namespace std;
int main()
{
float n1, n2, n3;
cout << "Enter three numbers: ";
cin >> n1 >> n2 >> n3;
if((n1 >= n2) && (n1 >= n3))
cout << "Largest number: " << n1;
else if ((n2 >= n1) && (n2 >= n3))
cout << "Largest number: " << n2;
else
cout << "Largest number: " << n3;
return 0;
}
Example 3: Find Largest Number Using Nested if...else statement
#include <iostream>
using namespace std;
int main()
{
float n1, n2, n3;
cout << "Enter three numbers: ";
cin >> n1 >> n2 >> n3;
if (n1 >= n2)
{
if (n1 >= n3)
cout << "Largest number: " << n1;
else
cout << "Largest number: " << n3;
}
else
{
if (n2 >= n3)
cout << "Largest number: " << n2;
else
cout << "Largest number: " << n3;
}
return 0;
}
The output of all three programs are same.
Output
Enter three numbers: 2.3
8.3
-4.2
Largest number: 8.3
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