count the number of ones in each row

hi, i have the below N by N matrix and i want to count the number of ones in each row , anyone can help ?

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 1 1 1

0 0 0 0 1 0 0 0 0 0

0 0 0 1 0 0 0 0 0 0

0 0 0 0 0 0 1 0 0 0

0 0 0 0 0 1 0 0 0 0

0 0 1 0 0 0 0 0 1 1

0 0 1 0 0 0 0 1 0 0

0 0 1 0 0 0 0 1 0 0

Answer 1

[KSSV]

A = [0     0     0     0     0     0     0     0     0     0
     0     0     0     0     0     0     0     0     0     0
     0     0     0     0     0     0     0     1     1     1
     0     0     0     0     1     0     0     0     0     0
     0     0     0     1     0     0     0     0     0     0
     0     0     0     0     0     0     1     0     0     0
     0     0     0     0     0     1     0     0     0     0
     0     0     1     0     0     0     0     0     1     1
     0     0     1     0     0     0     0     1     0     0
     0     0     1     0     0     0     0     1     0     0] ;
[m,n] = size(A) ; 
C = zeros(m,1) ;
for i = 1:m
    C(i) = nnz(A(i,:)) ;   
end
C

C = 10×1

0 0 3 1 1 1 1 3 2 2

Or Simply:

C = sum(A==1,2)

C = 10×1

0 0 3 1 1 1 1 3 2 2