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];
}

Is c still used?

0 Answers  

What's the difference between constant char *p and char * constant p?

0 Answers   Celstream,

write a c program in such a way that if we enter the today date the output should be next day's date.

0 Answers  

how to find anagram without using string functions using only loops in c programming

1 Answers   Mind Tree, TCS,

what is the associativity of bitwise OR operator?

1 Answers  

What are the key features in c programming language?

0 Answers  

What is the difference between ++a and a++?

0 Answers  

CAN ANYONE PLEASE HELP ON THIS PROGRAM FOR MY EXAM..TQ Write a C program to help a H’s Restaurant automate its breakfast billing system. Your assignment should implement the following items: a. Show the customer the different breakfast items offered by the H’s Restaurant. b. Allow the customer to select more than one item from the menu. c. Calculate and print the bill to the customer. d. Produce a report to present your complete program and show more sample output. Assume that the H’s Restaurant offers the following breakfast menu: Plain Egg $2.50 Bacon and Egg $3.45 Muffin $2.20 French Toast $2.95 Fruit Basket $3.45 Cereal $0.70 Coffee $1.50 Tea $1.80 Your program must do the following task below: a. Define the data structs, menu item types with two components: menu item of type string and menu price of type double. Use an array to declare the data structs. b. Function get data to loads the data into the array menu list. c. Function show menu to show the different breakfast items offered by the restaurant and tell the user how to select the items. d. Function print receipt to calculates and prints the customer receipt. The billing amount should include a 5% tax. e. Format your output with two decimal places. The name of each item in the output must be left-justify. You may assume that the user selects only one item of a particular type. f. The two sample output as shown: Welcome to HiFi’s Restaurant 1 Bacon and Egg $3.45 1 Muffin $2.20 1 Coffee $1.50 Tax 5% $0.35 Amount Due $7.50

1 Answers  

get any number as input except 1 and the output will be 1.without using operators,expressions,array,structure.don't print 1 in printf statement

3 Answers  

What oops means?

0 Answers  

explain what is an endless loop?

0 Answers  

what is the difference between structural,object based,object orientd programming languages?

1 Answers   PanTerra,