- C Programming Examples
- C Programming Examples
- C Print Hello World
- C Get Input from User
- C Print Integer
- C Add Two Numbers
- C Add Subtract Multiply Divide
- C Add n Numbers
- C Area Perimeter of Square
- C Area Perimeter of Rectangle
- C Area Circum of Circle
- C Fahrenheit to Celsius
- C Celsius to Fahrenheit
- C Inches to Centimeters
- C Kilogram to Gram
- C Reverse a Number
- C Swap Two Numbers
- C Interchange Numbers
- C Print ASCII Value
- C Print Fibonacci Series
- C Check Palindrome or Not
- C Check Armstrong or Not
- C Find Armstrong Numbers
- C Find nCr and nPr
- C Find Profit Loss
- C Sum of their Square
- C First & Last Digit Sum
- C Sum of All Digit
- C Product of All Digit
- C Print Total Digit in Number
- C Check Perfect Number
- C Find Basic Gross Salary
- C Round Number to Integer
- C Print Series upto n Term
- C Find Factors of Number
- C if-else & Loop Programs
- C Check Even or Odd
- C Check Prime or Not
- C Check Alphabet or Not
- C Check Vowel or Not
- C Check Leap Year or Not
- C Is Reverse Equal Original
- C Make Calculator
- C Add Digits of Number
- Count Positive Negative Zero
- C Largest of Two Numbers
- C Largest of Three Numbers
- C Smallest of Two Numbers
- C Smallest of Three Numbers
- C Find Factorial of Number
- C Find LCM & HCF
- C Find LCM of n Numbers
- C Find HCF of n Numbers
- C Find Arithmetic Mean
- C Find Average, Percentage
- C Find Student Grade
- C Print Table of Number
- C Print Prime Numbers
- C Find Discount Purchase
- C Calculate Parcel Charge
- C Calculate Wage of Labor
- C Print Phone Bill
- C Conversion programs
- C Decimal to Binary
- C Decimal to Octal
- C Decimal to Hexadecimal
- C Binary to Decimal
- C Binary to Octal
- C Binary to Hexadecimal
- C Octal to Decimal
- C Octal to Binary
- C Octal to Hexadecimal
- C Hexadecimal to Decimal
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- C Pattern Programs
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- C Print Diamond Pattern
- C Print Floyd's Triangle
- C Print Pascal's Triangle
- C Array Programs
- C 1D Array Programs
- C Linear Search
- C Binary Search
- C Largest Element in Array
- C Smallest Element in Array
- C Second Largest/Smallest
- C Count Even Odd
- C Array Element at Even
- C Array Element at Odd
- C Print Even Array Elements
- C Print Odd Array Elements
- C Sum/Product of Even/Odd
- C Reverse an Array
- C Insert Element in Array
- C Delete Element from Array
- C Merge Two Arrays
- C Bubble Sort
- C Selection Sort
- C Insertion Sort
- C Print Common Elements
- C 2D Array Programs
- C Add Two Matrices
- C Subtract Two Matrices
- C Transpose a Matrix
- C Multiply Two Matrices
- C Sum All Matrix Elements
- C Largest Element in Matrix
- C Print Row Column Total
- C 3D Array Programs
- C String Programs
- C Print String
- C Find Length of String
- C Compare Two String
- C Copy a String
- C Concatenate String
- C Reverse a String
- C Count Vowels Consonants
- C Replace Vowel in String
- C Delete Vowels from String
- C Delete Word from String
- C Frequency of Character
- C Count Word in String
- C Remove Spaces from String
- C Sort a String
- C Sort String in Alphabetical
- C Sort Words in Ascending
- C Sort Words in Descending
- C Uppercase to Lowercase
- C Lowercase to Uppercase
- C Swap Two Strings
- C Check Anagram or Not
- C Check Palindrome String
- C Print Number in Words
- C Print Successive Character
- C Character without Space
- C Remove Extra Spaces
- C File Programs
- C Read a File
- C Write Content to File
- C Read & Display File
- C Copy a File
- C Merge Two Files
- C Reverse File
- C Count All Character in File
- C List Files in Directory
- C Encrypt & Decrypt a File
- C Delete a File
- C Misc Programs
- Generate Random Numbers
- C Print Date Time
- C Print Message with Time
- C Get IP Address
- C Print Smiling face
- C Pass Array to Function
- Add Two Numbers using Pointer
- C Address of Variable
- C Shutdown Computer
- C Programming Tutorial
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- C Programming Test

# C program to find the largest of two numbers

In this article, you will learn and get code about how to find and print the largest number between any given two numbers by the user (at run-time) with the following approaches:

- Find the largest of two numbers using an if-else statement.
- Find the largest of two numbers using a ternary operator.
- Find the largest of two numbers using the function

## Using if-else logic, determine the greater of two numbers

To find the largest or greatest one between any given two numbers in C programming, you have to ask the user to enter any two numbers to check and find out which one is larger, as shown in the program given below:

#include<stdio.h> #include<conio.h> int main() { int a, b, big; printf("Enter any two number: "); scanf("%d%d", &a, &b); if(a>b) big=a; else big=b; printf("\nBiggest of the two number is: %d", big); getch(); return 0; }

As the above program was written in the Code::Blocks IDE, therefore, after a successful build and run, it will produce the following result:

Now you have to supply any two numbers, say 10 and 20, and then press ENTER to see the output as given in the second snapshot here. As we all know, 20 is greater than 10, therefore, you will see 20 as the output:

If you want to test with the first number as 20 and the second number as 10, you can do so. Here is the output:

#### Program Explained

- Take any two numbers and put them in two variables, say a and b.
- Check whether a is greater than b or not using the if statement.
- If it is, then the value of a will be initialized to big.
- Otherwise, the value of b will be initialized to big.
- Whatever the biggest value is, big holds it.
- Finally, print the value of the big variable as output.

## Find the largest of two numbers using the ternary operator

Here is another program that does the same job as the previous one. This program uses the ternary operator to find the greater one.

#include<stdio.h> #include<conio.h> int main() { int num1, num2, large; printf("Enter any two numbers: "); scanf("%d%d", &num1, &num2); large = (num1>num2) ? num1 : num2; printf("\nLargest = %d", large); getch(); return 0; }

Here is the first screenshot of the sample run:

Now supply any two numbers and press ENTER to see the largest number, as shown here in the second snapshot:

The main logical code is:

large = (num1>num2) ? num1 : num2;

Here, if num1 is greater than num2, then num1 will be initialized to large, otherwise num2 will be initialized to large.

Or you can say that if num1 is greater than num2, then the whole expression after large = will become num1; therefore, the statement becomes:

large = num1;

Otherwise (if num1 is less than num2), the statement becomes:

large = num2;

## Find the largest of two numbers using a function

This is the final program in which I've written a function findLarge() that takes the user's number as an argument and returns the largest one.

#include<stdio.h> #include<conio.h> int findLarge(int, int); int main() { int num1, num2, larg; printf("Enter any two numbers: "); scanf("%d%d", &num1, &num2); larg = findLarge(num1, num2); printf("Largest = %d", larg); getch(); return 0; } int findLarge(int a, int b) { if(a<b) return b; else return a; }

Here is the final snapshot of the sample run:

Inside the function named findLarge(), if the value at b is greater than the value at a, then b will be returned and initialized to the large variable; otherwise, a will be returned and initialized to the large variable inside the main() function.

#### The same program in different languages

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