C++ Program to Find Biggest of Three Numbers.

Here we will understand how to find the largest number among the three numbers using C++ code.

Examples:
Input: int a = 5, b = 8, c = 2
Output: The Biggest number among the three is 8

Input: int a = 54, b = 21, c = 9
Output: The Biggest number among the three is 54

There are multiple ways to solve this problem:

Using if statement.
Using if-else statement.
Using Ternary Operator.

1. Algorithm using if statement.

Take three input variables from the user and store them in three different variables a, b, and c.
Check condition if a >= b and a >= c, if both conditions are true then print "The Biggest number among three is a.
Check condition if b >= a and b >= c, if both conditions are true then print "The Biggest number among three is b.
Check condition if c >= a and c >= b, if both conditions are true then print "The Biggest number among three is c.
Stop the Program.

//C++ Code to find Biggest among three numbers
#include<iostream>
using namespace std;

int main(){
    int a, b, c;

    cout << "Enter three numbers: ";
    cin >> a >> b >> c;

    if(a >= b && a >= c)
       cout<<"The Biggest number among the three is "<<a;

    if(b >= a && b >= c)
       cout<<"The Biggest number among the three is "<<b;

    if(c >= a && c >= b)
       cout<<"The Biggest number among the three is "<<c;
             
    return 0;                    
}

Output:

Enter three numbers: 10 34 54
The Biggest number among the three is 54

2. Algorithm using if-else statement.

This algorithm is a little better than the previous one because here we are not going to check the remaining conditions once we find our first true condition.

Take three input variables from the user and store them in three different variables a, b, and c.
Check first if-condition, a >= b and a >= c, if conditions are true then print "The Biggest number among three is a" and end the program.
Check the next else-if condition b >= a and b >= c, if conditions are true then print "The Biggest number among three is b" and end the program.
If both the above conditions fail then without checking any further conditions you can declare the third variable as the largest variable.
End the Program.

//C++ Code to find Biggest among three numbers

//using if-else

#include<iostream>
using namespace std;

int main(){
    int a, b, c;

    cout << "Enter three numbers: ";
    cin >> a >> b >> c;

    if(a >= b && a >= c)
       cout<<"The Biggest number among the three is "<<a;
    else if(b >= a && b >= c)
       cout<<"The Biggest number among the three is "<<b;
    else
       cout<<"The Biggest number among the three is "<<c;
             
    return 0;                    
}

Output:

Enter three numbers: -5 4 5
The Biggest number among the three is 5

3. Algorithm using Ternary Operator.

The ternary operator is a shorter way of writing if-else conditions and based on the results of the condition a particular block of code executes.

(condition) ? expression 1 : expression 2

Here, if the condition is true then expression 1 will get executed and if the condition is false then expression 2 will get executed.

//C++ Code to find Biggest among three numbers 
//using ternary operator
#include<iostream>
using namespace std;

int main(){
    int a, b, c;
    int ans;
    cout << "Enter three numbers: ";
    cin >> a >> b >> c;

    //Ternary Operator
    ans = (a >= b ? (a >= c ? a : c) : (b >= c ? b : c));
    
    cout<<"The Biggest number among the three is "<<ans;
             
    return 0;                    
}

Output:

Enter three numbers: 5 3 12
The Biggest number among the three is 12

C++ Program to Find Biggest of Three Numbers.

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