It was so hard to think the solution, there are any other solutions?
function B = your_fcn_name(value,row,col)
G = digraph(row,col);
B = full(adjacency(G));
B = B*value;
B=B(1:max(row),1:max(col));
end

Why this isn't working??

function B = name(value,row,col)
row=row';
col=col';
z=zeros(max(row),max(col));
[ro,~]=size(row);
for ii=1:ro
for jj=1
h=row(ii,jj);
b=col(ii,jj);
z(h,b)=value;
end
end
B=z;
end

%considering the linear mapping of matrix index
function B = your_fcn_name(value,row,col)
B = 0*rand(row(end),col(end));
temp = row'+(col'-1)*row(end);
B(temp) = value;
end

Not sure if reshape is allowed. But desciption do not prohibits it.

I am so proud of myself for solving this problem. :)) Nice challenge! :D

Nice challenge. Learned how matrix indices are used

I have completed upto creating zero matrix but can't find anything specific to insert the values! any hints?

Overwrites assert.m

function B = your_fcn_name(value,row,col)
B(row,col)=value;
end
but it shows error pls help me

When row and col are vectors of length n, B(row,col)=value resets all combinations of row(i) and col(j) (a total of n^2 elements); the problem wants just row(i) and col(i) (a total of n elements).