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Program to find factorial value of a number using pointer.

using codeblocks
---------------------------------------------------------------------------
//program to get factorial value of a number using pointer
#include <stdio.h>            //header file
int main()
{
    int i,facto=1;                //variable initialization
    int number;                   //variables declaration
    int *p;                      //pointer declaration
    printf("enter a number\n");
    scanf("%d",&number);              //input of a number
    p=&number;                             //storing of address to pointer
    for(i=1;i<=*p;i++)                   //execution of loop till the value reaches to last
    {
        facto=facto*i;                   //continuous multiplication

    }
        printf("factorial value=%d",facto);       //display of output
    return 0;
}

------------------------------------------------------------------------------------------------------------------
using turbo c++
----------------------------------------------------------------------------------------------------------------
//program to get factorial value of a number using pointer
#include <stdio.h>            //header file
#include<conio.h>
int main()
{
    int i,facto=1;                //variable initialization
    int number;                   //variables declaration
    int *p;                      //pointer declaration
    printf("enter a number\n");
    scanf("%d",&number);              //input of a number
    p=&number;                             //storing of address to pointer
    for(i=1;i<=*p;i++)                   //execution of loop till the value reaches to last
    {
        facto=facto*i;                   //continuous multiplication

    }
        printf("factorial value=%d",facto);       //display of output
     getch();
    return 0;
}

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Program to input 20 numbers and pick the greatest one using pointer.

using codeblocks
------------------------------------------------------------------------------------------------------
//program to pick the greatest number using pointer
#include <stdio.h>            //header file

int main()
{
    int a[100];                 //array declaration
    int i,max;
    int total;                   //variables declaration
    int *p;                      //pointer declaration
    printf("enter value of total\n");
    scanf("%d",&total);              //input of total value of array
    printf("enter elements of array\n");
    p=a;                             //storing of base address to pointer
    for(i=0;i<total;i++)                   //execution of loop
    {
        printf("enter value for location=%d\t",i);
        scanf("%d",p+i);                  //input of element using pointer. here array's base address is used for input
                                          //It gets input using address starting from base location 0.
                                          //It goes on increasing (address) as the loop moves ahead.
    }
    max=*(p+0);                          //It stores value stored in location 0
    for(i=0;i<total;i++)
    {
       if(max<*(p+i))                   //comparison takes place
       {
         max=*(p+i);                    //assigning value
       }
    }
    printf("max value=%d",max);       //display of maximum value
    return 0;
}
--------------------------------------------------------------------------------------------------------
using turbo c++
-------------------------------------------------------------------------------------------------------
//program to pick the greatest number using pointer
#include <stdio.h>            //header file
#include<conio.h>
int main()
{
    int a[100];                 //array declaration
    int i,max;
    int total;                   //variables declaration
    int *p;                      //pointer declaration
    printf("enter value of total\n");
    scanf("%d",&total);              //input of total value of array
    printf("enter elements of array\n");
    p=a;                             //storing of base address to pointer
    for(i=0;i<total;i++)                   //execution of loop
    {
        printf("enter value for location=%d\t",i);
        scanf("%d",p+i);                  //input of element using pointer. here array's base address is used for input
                                          //It gets input using address starting from base location 0.
                                          //It goes on increasing (address) as the loop moves ahead.
    }
    max=*(p+0);                          //It stores value stored in location 0
    for(i=0;i<total;i++)
    {
       if(max<*(p+i))                   //comparison takes place
       {
         max=*(p+i);                    //assigning value
       }
    }
    printf("max value=%d",max);       //display of maximum value
getch();   
return 0;
}


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Program to input 20 numbers and pick the greatest one using pointer.

using codeblocks
------------------------------------------------------------------------------------------------

//Program to input 20 numbers and pick the greatest one using pointer.
#include <stdio.h>            //header file
int main()
{
    int a[100];                 //array declaration
    int i,max;
    int total;                   //variables declaration
    printf("enter value of total\n");
    scanf("%d",&total);              //input of total value of array
    printf("enter elements of array\n");
    for(i=0;i<total;i++)                   //execution of loop
    {
        printf("enter value for location=%d\t",i);
        scanf("%d",a+i);                  //input of element using array. here array acts as pointer.
                                          //It gets input using address starting from location 0.
    }
    max=*(a+0);                          //It stores value stored in location 0
    for(i=0;i<total;i++)
    {
       if(max<*(a+i))                   //comparison takes place
       {
         max=*(a+i);                    //assigning value
       }
    }
    printf("max value=%d",max);       //display of maximum value
    return 0;
}
-------------------------------------------------------------------------------------------------------------
using turbo c++
----------------------------------------------------------------------------------------------------------
//program to pick the greatest number using pointer
#include <stdio.h>            //header file
#include<conio.h>
int main()
{
    int a[100];                 //array declaration
    int i,max;
    int total;                   //variables declaration
    printf("enter value of total\n");
    scanf("%d",&total);              //input of total value of array
    printf("enter elements of array\n");
    for(i=0;i<total;i++)                   //execution of loop
    {
        printf("enter value for location=%d\t",i);
        scanf("%d",a+i);                  //input of element using array. here array acts as pointer.
                                          //It gets input using address starting from location 0.
    }
    max=*(a+0);                          //It stores value stored in location 0
    for(i=0;i<total;i++)
    {
       if(max<*(a+i))                   //comparison takes place
       {
         max=*(a+i);                    //assigning value
       }
    }
    printf("max value=%d",max);       //display of maximum value
getch();   
 return 0;
}


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