Answer / suman

by using calloc() or malloc() functions we create at run
time


i think it will be correct if not forgive me

sumankumar..........

Answer / shalabh

This can be done by using malloc...if u have an integer
array then ...you can ask user the size..and then allocate
memory for integers...at the run time...using malloc()

Answer / vijay zanvar

You can't do that in C. Use dynamic allocation method
to implement array. See Q. 20 and 41 in
http://www.geocities.com/vijoeyz/faq/

Best,
Vijay Zanvar,
Home Page - http://geocities.com/vijoeyz/

Answer / lp

Declare a integer array size at runtime:
1.declare an interget pointer. - int *ptr
2.Get the size of array from user - int n
3.using malloc() ,allocate that many number of location to
the pointer. - ptr = malloc(n*sizeof(int));
4.Make use of the dynamically allocated array. - ptr[]

Answer / rajendra

#include <stdlib.h> /* EXIT_FAILURE, EXIT_SUCCESS */
#include <errno.h>
#include <stdio.h>

#define ROW 5
#define COL 5

int
main ( void )
{
int **cont_arr;
int **cont_arr;

int **arr = malloc ( ROW * sizeof ( int * ) );
if ( !arr )
{
perror ( "Error" );
exit ( EXIT_FAILURE );
}

for ( i=0; i < ROW; i++ )
{
arr[i] = malloc ( sizeof ( int ) * COL );
if ( !arr[i] )
{
perror ( "Error" );
exit ( EXIT_FAILURE );
}
}

/*
* Contiguous memory allocated for array.
Below.
*/

cont_arr = (int **) malloc ( ROW * sizeof ( int
* ) );
if ( !cont_arr )
{
perror ( "Error" );
exit ( EXIT_FAILURE );
}

cont_arr[0] = (int *) malloc ( ROW * COL *
sizeof ( int ) );
if ( !cont_arr[0] )
{
perror ( "Error" );
exit ( EXIT_FAILURE );
}

for ( int i=1; i < ROW; i++ )
cont_arr[i] = cont_arr[0] + i * COL;

exit ( EXIT_SUCCESS );
}

Answer / vinod

C99 and above supports the conceptof VLA(Variable Length Array) which allows you to set array size based on input during run time. It can also done using dynamic memory allocation.

Example:
int main()
{
int i;
scanf("%d",&i);
int a[i];
}

Answer / nithin

int main()
{
int i, max;

// Array
int *a;

printf("Enter the size of array\n");
scanf("%d", &max);

//Run time size allocation of an array
a = (int*)malloc(max * sizeof(int));

for(i = 0; i < max;i++)
{
a[i] = i * 2;
printf("value of element %d is %d\n", i, a
[i]);
}
return 0;
}

Answer / shruti

that is the main drawback of an array..
u cannot assign memory at run time...

Answer / arthy

main()
{
int n,i;
scanf("%d",&n);
int a[n];
}

When do you say that a digraph is acyclic A)if and only if its first search does not have back arcs B)a digraph is acyclic if and only if its first search does not have back vertices C)if and only if its first search does not have same dfnumber D)None of these

1 Answers   Accenture, IBM,

#define min((a),(b)) ((a)<(b))?(a):(b) main() { int i=0,a[20],*ptr; ptr=a; while(min(ptr++,&a[9])<&a[8]) i=i+1; printf("i=%d\n",i);}

3 Answers  

Total of how many functions are available in c?

3 Answers  

if ENTERED FIVE DIGITS DESIGN A PROGRAM THAT WILL FIND CORRESPONDING VALUE FROM ASCII TABLE

1 Answers  

Function shall sum members of given one-dimensional array. However, it should sum only members whose number of ones in the binary representation is higher than defined threshold (e.g. if the threshold is 4, number 255 will be counted and 15 will not) - The array length is arbitrary - output the results to the stdout

0 Answers   XYZ,

Expand the following LKB BKL FFG

0 Answers  

What is scanf_s in c?

0 Answers  

How can you determine the maximum value that a numeric variable can hold?

0 Answers  

how to introdu5ce my self in serco

0 Answers  

What are the different data types in C?

0 Answers  

Write a program for Overriding.

0 Answers  

What is pointers in c with example?

0 Answers