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

using codeblocks
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//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;

}

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using turbo c++

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//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;

}