Largest Amongst Three Numbers

“Largest Amongst Three Numbers” is very basic programming Exercise problem. Here, we are given three numbers, entered by user and our task is to write a program to find the largest amongst three number.

Example:

INPUT:
Num1 = 10
Num2 = 20
Num3 = 30
OUTPUT
30 is largest number

As we have only three numbers, we will simply check every number with other two remaining number to find the largest amongst three numbers.

C++ Program to find largest number among three number is as follows:

#include<bits/stdc++.h>  
using namespace std;  
int main()  
{  
    int num1,num2,num3;  
      
    // Scanning the numbers  
    cout<<"Enter the first Number: ";  
    cin>>num1;  
      
    cout<<"Enter the second Number: ";  
    cin>>num2;  
      
    cout<<"Enter the third Number: ";  
    cin>>num3;  
      
    int largest;  
      
    // check if first number is largest  
    if(num1 >= num2 && num1 >= num3)  
    {  
        largest = num1;  
    }  
    // check if second number is largest  
    else if(num2 >= num1 && num2 >= num3)  
    {  
        largest = num2;  
    }  
    // check if third number is largest  
    else if(num3 >= num1 && num3 >= num2)  
    {  
        largest = num3;  
    }  
      
    //Printing the largest number  
    cout<<"The largest number is "<<largest;  
}  

OUTPUT:
Enter the first Number: 10
 Enter the second Number:  20
Enter the third Number: 30
The largest number is 30

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