How does 2d matrix print to the output? i means if i got a[7][7]
Will it on the first line of the output from left to right or from top to bottom??
For example
i think output should be :Code:int sum; for (i=1; i <= 7; ++i) { for (j=1; j <= 7; ++j) ...... }
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
It prints left to right first or bottom all the 1 first then 2...thanks
Well it depends on if you are doing
orCode:matrix[i][j]
Basically, it is your choice on how you represend the 2D array. There is no rule that i's represent rows, and j's represent columnsCode:matrix[j][i]
> i means if i got a[7][7]
Then the loop is
for (i=0; i < 7; ++i)
Not
for (i=1; i <= 7; ++i)
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
arrays start with 0.
an array of size 7 would have 7 elements.
thus there would be 7 valid indices: 0, 1, 2, 3, 4, 5, 6.
the highest valid index is array_size - 1
thus: yes, for (i=0; i < 7; ++i) is correct -
also correct would be for (i=0; i <= 6; ++i)
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oo..ok..thanks for helping..
