Find the largest digit in a number

SOURAV KUMAR PATRA January 06, 2020

Problem statement:- Program to Find the largest digit in a number.

Example:    

                Input: num=55579462

                Output: The Largest Digit is:9 

                

                Input: num=213015

                Output: The Largest Digit is:5

Data requirement:-

   Input Data:- num

  Output Data:-Largest

  Additional Data:- remider

Program in C

Here is the source code of the C Program to Find the largest digit in a number.

Code:

#include<stdio.h>
int main ()
{
int num, remider, Largest= 0;
printf ("Enter the Number :");
scanf ("%d", &num);

while (num > 0)
    {
remider = num % 10;
if (Largest < remider)
{
       Largest = remider;
}
num = num / 10;
    }
printf ("The Largest Digit is :%d \n", Largest);
return 0;
}

Input/Output:
Enter the Number :
55579462
The Largest Digit is:9 

Program in C++

Here is the source code of the C++ Program to Find the largest digit in a number.

Code:

#include<iostream>
using namespace std;
int main ()
{
int num, remider, Largest= 0;
cout<<"Enter the Number :";
cin>>num;

 while (num > 0)
    {
remider = num % 10;
if (Largest < remider)
{
       Largest = remider;
}
num = num / 10;
    }
cout<<"The Largest Digit is "<< Largest;
return 0;
}

Input/Output:
Enter the Number :
213015
The Largest Digit is 5

Program in Java

Here is the source code of the Java Program to Find the largest digit in a number.

Code:

import java.util.Scanner;
public class LargestDigit {

public static void main(String[] args) {
Scanner cs = new Scanner (System.in);
      System.out.println ("Enter the number");
    int num = cs.nextInt ();
    int reminder, Largest= 0;
   while (num > 0)
   {
       reminder = num % 10;
       if (Largest< reminder) 
       {
           Largest= reminder;
       }
       num = num / 10;
   }
   System.out.println("\nThe Largest Digit is "+Largest);

       cs.close();
}
}

 Input/Output:
Enter the number
457653
The Largest Digit is 7


Program in Python

Here is the source code of the Python Program to Find the largest digit in a number.

Code:

print("Enter the Number :")
num=int(input())
Largest=0;
while (num > 0):
    reminder=num%10
    if Largest<reminder:
        Largest = reminder
    num =int(num / 10)
print("The Largest Digit is :", Largest)

Input/Output:
Enter the Number :
458791
The Largest Digit is: 9


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