How to calc Two array

[miziri]

Hi,
I have like array
a[2][3]+b[2][3]=c[2][3]
can some tell how to calc both in carray
=====================

[SlyMaelstrom]

I'm not quite sure if this is what you're asking, so I'll explain in a little more detail.

You say you have two arrays, and you want to add each element of the similar indexes to a new array total. Like for instance if you had two weeks of data by day, you'd have each week and a total

     Week 1       Week 2       Total
Sun    50           62          112

Mon    66           61          127

Tue    45           53           98

Wed    57           60          117

etc...

If this is the case, then you need to loop through your arrays and total each index at one time.

for(int i = 0; i < ROW; i++)
   for(int j = 0; j < COL; j++)
      arryTot[i][j] = arry1[i][j] + arry2[i][j];

[miziri]

Thanks for ur .....
Plz I need some like this.

A [1][1] b[1][1] C
1 2 2 6 3 8
4 5 + 4 2 = 8 7

I need calc A array + arryB result in C array.
for(i=0;i<2;i++)

for(j=0;j<2;j++)
cin>>[i][j] /* this will add element of A

for(i=0;i<2;i++)
for(j=0;j<2;j++)
cin>b[i][j];/*** this i am add B elemnt is that correct.

now
How I will sum a[][]+b[][]
then save in c[][]
Ineed that loop




for I need some like c


thx

[Mario F.]

    const int arr_size = 2;
    const int arr_size2 = 3;
    int a[arr_size][arr_size2] = {2, 3, 5, 6, 8, 6};
    int b[arr_size][arr_size2] = {1, 4, 7, 5, 4, 1};

    int c[arr_size][arr_size2];

    for (int i = 0; i != arr_size; ++i) {
        for (int z = 0; z != arr_size2; ++z) {
            c[i][z] = a[i][z] + b[i][z];
        }
    }

[miziri]

Thanks alot.
I will try that.

Final.
Plz

I have this array
A
1 5 6
2 7 8
3 4 2


exchnage
with first line with last to be liker this

3 4 2

2 7 8

1 5 6

Thax-Iraq

[whiteflags]

Did you try to sort the array in decending order with any one of the sort algorithms? My suggestion of course, hinges on the fact that an array[x][y] is also an array[xy], and sorting the first row would result in an order like the one you want.

[miziri]

friend
Sort wll not solve my problem in my example sort will be I want code all
example.

thx

[Dave_Sinkula]

Show your attempt at writing the exchange code. It is very much like a simple swap, except you would want to loop through the columns of the rows being swapped, rather than just a simple assignment.