C Programming - Pointers - Discussion
Discussion Forum : Pointers - Find Output of Program (Q.No. 11)
                   
                                       
                                11.
What will be the output of the program?
 
                                    #include<stdio.h>
int main()
{
    int arr[2][2][2] = {10, 2, 3, 4, 5, 6, 7, 8};
    int *p, *q;
    p = &arr[1][1][1];
    q = (int*) arr;
    printf("%d, %d\n", *p, *q);
    return 0;
}
Discussion:
58 comments Page 1 of 6.
                
                        RAHUL SHARMA said: 
                         
                        2 decades ago
                
                Here the 3-D array the value can be store as:
and the *arr represent the first number of a array is 10.
Then hence the number is (8,10).
                a[2][2][2]={
             {
               10,2
               3,4   // First Block
             }
             {
                5,6
                7,8  //Second Block
             }
           }
a[ 0 ] [ 0 ] [ 0 ] =10;
   |     |     |
Block  Rows  Columns
a [ 1 ] [ 1 ] [ 1 ] = 8;      
    |     |     |
 2'Block 2'Row 2'column           and the *arr represent the first number of a array is 10.
Then hence the number is (8,10).
                     (38)
                
            
                        Nancy said: 
                         
                        2 decades ago
                
                Good explanation rahul.
                
                        Sagar said: 
                         
                        1 decade ago
                
                It is three dimensional array,
so,arr[1][1][1]=8,
*p,
p=&arr[1][1][1],
*p means value at address i.e=8.
(int*)arr always consist first value as,
starting value at arr address,so
o/p= 8,10
                so,arr[1][1][1]=8,
*p,
p=&arr[1][1][1],
*p means value at address i.e=8.
(int*)arr always consist first value as,
starting value at arr address,so
o/p= 8,10
                     (1)
                
            
                        Haneef said: 
                         
                        1 decade ago
                
                Rahul. What the value if its a[ 2 ] [ 1 ] [ 1 ]. ?
                
                        Cool said: 
                         
                        1 decade ago
                
                Good one dude! (rahul).
                
                     (1)
                
            
                        Sanjay said: 
                         
                        1 decade ago
                
                Thank you sagar.
                
                        Abhijit said: 
                         
                        1 decade ago
                
                @haneef: 
a[2][1][1] cannot be accessed, coz array is initialized only for the 2nd dimension(i.e 0,1) a[2]... will be like accessing the thrid element which is not initialized.
Hope you got it.
                a[2][1][1] cannot be accessed, coz array is initialized only for the 2nd dimension(i.e 0,1) a[2]... will be like accessing the thrid element which is not initialized.
Hope you got it.
                     (1)
                
            
                        Harishgoud said: 
                         
                        1 decade ago
                
                Exactly the answer is right Mr. Rahul.
                
                        Arvind said: 
                         
                        1 decade ago
                
                Nice explaind rahul.
                
                        Mani said: 
                         
                        1 decade ago
                
                Thanks for the clear explanation raghul
                Post your comments here:
 
            
        Quick links
                            Quantitative Aptitude
                                    
                                    Verbal (English)
                                    
                                    Reasoning
                                    
                                Programming
                                    
                                    Interview
                                    
                                     Placement Papers