while initialization of two dimensional arrays we can
initialize like a[][2] but why not a[2][] is there any
reason behind this?
Answers were Sorted based on User's Feedback
Answer / prady
2 dimension array a[row][col]; in this 'col' indicates size
of block,and 'row' indicates no. of blocks.
Compiler prefer memory unit size first rather no.of memory
units.
| Is This Answer Correct ? | 25 Yes | 1 No |
the main reason behind this is that, if we specify the
columns instead of rows we can easily find out the number of
rows in the matrix...... but if we give just row number we
cant predict the number of columns...... that's why !!!!!!
thnak u
| Is This Answer Correct ? | 4 Yes | 2 No |
Answer / kathir
Lets assume an arry arr[][3] = {..};
if you want to refer arr[1][2] then the reference to the
element will be identified using the following formula,
arr[1*NoOfColoumns(=3) + 2](you can consider it as a single
dimension array storing values in sequence).
Hence to get the address of any element in the array you
only require column info NOT rows.Thats why compiler does
not bother about no of rows!
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / subhrajeet sairam mohanty
2 dimension array a[row][col]; in this 'col' indicates size
of block,and 'row' indicates no. of blocks.
Compiler prefer memory unit size first rather no.of memory
units.
| Is This Answer Correct ? | 0 Yes | 0 No |
Please write me a program to print the first 50 prime numbers (NOT between the range 1 -50)
void main() { int s[4][2]={ {1234,56},{1212,33},{1434,80},{1312,78} }; int (*p)[2]; int i,j,*pint; for(i=0;i<=3;i++) { p=&s[i]; pint=p; printf("\n"); for(j=0;j<=1;j++) printf("%d",*(pint+j)); } } while running this program it shows a warning-suspicious pointer conversion ie pint=p; my que is why should we assign the value of p to pint again.why cant we use it directly as *(p+j)..but if i use like tat the o/p is garbage value..
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