Multidimensional Arrays (Solved Problem)

C Programming: Multidimensional Arrays (Solved Problem)
Topics discussed:
1) C program to read a 5x5 array of integers and then print the row sum and column sum.

Music:
Axol x Alex Skrindo - You [NCS Release]

#CProgrammingByNeso #CProgramming #Arrays #MultidimensionalArrays #ArraysInC

[charlesantony]

I definitely prefer this channel for c programming to everyone

[arunimaaa]

for the column sum if we just change the line sum+=[ i ][ j ] to sum +=[ j ][ i ] it should work

[Jeremyak]

It feels good when my solution more or less matches the instructors. 🥰

[yagneshacharya]

i feel like my mind is expanding by solving this problem

[roshanmhatre]

For column sum, I simply did this sum+=a[j][i];

[timsinajiven]

you can also make an array of rowsum and columnsum initilizing all the indexes to 0 to store the sum's without directly printing it in the for loop

[akashpurbia]

instead of changing for loop we can directly change sum=sum+a[j][i];

[Shivam-ehfc]

@nesoacademy sir, I have watch these videos I request you to to please suggest me which course to opt for more competitive programming . Please

[lucianmwingizi]

Hi! its so a beutiful about 3D explanation of array, kick up brother

[sahil]

Please answer this- how compiler knows that i is row and j is column ??

[qandos-nour]

from where you come with these interesting programs ?? :( I want it to practice

[ishwarikorde]

Sir, is this program of multidimensional array?

[ritikrustagi]

I guess this is a better approach to solve this question-
int row[5]={0}, col[5]={0};
for(int i=0; i<5; i++)
{
for(int j=0; j<5; j++)
{
row[i]+=arr[i][j];
col[j]+=arr[i][j];
}
}

[Codality]

If you get the first element in the first array so huge, that becuase of garbage value, you need to initialize the sum variable first like : int sum = 0; and not like int sum;

[manikantavaraprasadvemula]

sir instead of changing loop just interchange i and j in the row sum code for column sum code

[kingelvis]

Great very help full but can i get the same version of this but in Javascript?

[farrukhkhalid]

can you please tell me how to store int values from file to 2d int array but without know how to do this with 1d array with grow capacity function but i have tried many times to do that in 2d array but i didn't succeed .if you know how to do this then please tell me .

[mukstymug]

Can you help me with an array program which which is 5 by 5 but this time when it’s the user going to input those values and it calculates average for every row ? 🙏

[saulfeliz]

Similar, less verbose python solution:

def sum_row_col(arr):
row_total = []
col_total = []
for row in arr:
row_total.append(sum(row))
for i in range(len(arr)):
curr_col =[arr[0][i]]
for j in range(1, 5):
curr_col.append(arr[j][i])

return f"row total: {row_total} \ncolumn total: {col_total}"

[JackyShaw]

Sir if you really want to help us explain how to solve these types of questions which is asked frequently in Gate.
main()

{
int arr[2][3][2] ={{{1, 2}{3, 4}{5, 6}}, {7, 8}{9, 10}, {11, 12}}};
printf("%d%d", a[1]-a[0], a[1][0]-a[0][0]};
return 0;
}
assume int is of 2 bytes