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Write a C Program to find largest number using pointers

robaa
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2022-11-24
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Write a C Program to find largest number using pointers. Here’s simple Program to find largest number using pointers in C Programming Language.

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robaa
2022-11-24
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What are Pointers?

A pointer is a variable whose value is the address of another variable, i.e., direct address of the memory location. Like any variable or constant, you must declare a pointer before using it to store any variable address.

 
 

The general form of a pointer variable declaration is −

  • type *var-name;

Here, type is the pointer’s base type; it must be a valid C data type and var-name is the name of the pointer variable.

The asterisk * used to declare a pointer is the same asterisk used for multiplication. However, in this statement the asterisk is being used to designate a variable as a pointer.

 

The unary or monadic operator & gives the “address of a variable’”.

The indirection or dereference operator * gives the “contents of an object pointed to by a pointer”.

Below is the source code for C Program to find largest number using pointers which is successfully compiled and run on Windows System to produce desired output as shown below :

SOURCE CODE : :

/*  C Program to find largest number using pointers  */

#include <stdio.h>
#include <conio.h>

int main()
{
    int n,*p,i,h=0;

        printf("How many numbers u want :: ");
        scanf("%d",&n);

        p=(int *) malloc(sizeof(int));

        if(p==NULL)
        {
                printf("\nMemory Allocation unsuccessful.\n");
                exit(0);
        }
        for(i=0;i<n;i++)
        {
                printf("\nEnter Number %d :: ",i+1);
                scanf("%d",p+i);
        }

        h=*p;
        for(i=1;i<n;i++)
        {
                if(*(p+i)>h)
                        h=*(p+i);
        }
        printf("\nThe Largest Number is %d \n",h);
        
        return 0;
}

Output : :

/*  C Program to find largest number using pointers  */

How many numbers u want :: 6

Enter Number 1 :: 77

Enter Number 2 :: 22

Enter Number 3 :: 44

Enter Number 4 :: 11

Enter Number 5 :: 99

Enter Number 6 :: 44

The Largest Number is 99

Process returned 0

Above is the source code for C Program to find largest number using pointers which is successfully compiled and run on Windows System.The Output of the program is shown above .

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