C Programming - Arrays - Discussion
Discussion Forum : Arrays - Find Output of Program (Q.No. 2)
2.
What will be the output of the program ?
#include<stdio.h>
int main()
{
static int a[2][2] = {1, 2, 3, 4};
int i, j;
static int *p[] = {(int*)a, (int*)a+1, (int*)a+2};
for(i=0; i<2; i++)
{
for(j=0; j<2; j++)
{
printf("%d, %d, %d, %d\n", *(*(p+i)+j), *(*(j+p)+i),
*(*(i+p)+j), *(*(p+j)+i));
}
}
return 0;
}
Discussion:
78 comments Page 2 of 8.
Sadashiv said:
1 decade ago
One please help me to understood the output of this program.
#include<stdio.h>
void main()
{
long myarr[2][4]={0l,1l,2l,3l,4l,5l,6l,7l};
printf("%ld\t",myarr[1][2]);
printf("%ld%ld\t",*(myarr[1]+3),3[myarr[1]]);
printf("%ld%ld%ld\t" ,*(*(myarr+1)+2),*(1[myarr]+2),3[1[myarr]]);
}
#include<stdio.h>
void main()
{
long myarr[2][4]={0l,1l,2l,3l,4l,5l,6l,7l};
printf("%ld\t",myarr[1][2]);
printf("%ld%ld\t",*(myarr[1]+3),3[myarr[1]]);
printf("%ld%ld%ld\t" ,*(*(myarr+1)+2),*(1[myarr]+2),3[1[myarr]]);
}
Manoj said:
1 decade ago
See the difference : No change.
static int *p[] = {(int*)a};//, (int*)a+1, (int*)a+2};
static int *p[] = {(int*)a};//, (int*)a+1, (int*)a+2};
Anil said:
1 decade ago
How come a[0]=1, a[1]=2 and a[2]=3?
Can any one explain please?
Can any one explain please?
Manoj said:
1 decade ago
Try this code : Same output.
*(*p+i+j), *(*p+i+j), *(*p+i+j), *(*p+i+j).
*(*p+i+j), *(*p+i+j), *(*p+i+j), *(*p+i+j).
Priyadharshni said:
1 decade ago
printf("%d, %d, %d, %d\n", *(*(p+0)+1), *(*(1+p)+0), *(*(0+p)+1), *(*(p+1)+0));
This gives 2 3 2 3 when i=0, j= 1.
Don't understand this part.
This gives 2 3 2 3 when i=0, j= 1.
Don't understand this part.
Induja said:
1 decade ago
p is the static pointer. So it is initialized as 0.
SAAGAR said:
1 decade ago
Simply go through this concept you will not get confused and you can save your time in written exams. We know that one * and one + means (*(i+p)) we will get the value of i. In this way we will get ** and ++ also we will get actual value.
Balamanikanta said:
10 years ago
static int *p[] = {(int*)a, (int*)a+1, (int*)a+2}; please explain this step.
Sri said:
1 decade ago
Hi. Please explain why we assign p=0?
Shanthi priya.kota said:
10 years ago
How can you get p = 0?
Can you please explain me?
Can you please explain me?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers