Информатики, нужна с этими ! 11 класс.

1)var a:array[1..3,1..3] of integer;
b:array[1..3,1..3] of integer;
c:array[1..3,1..3] of integer;
i,j:integer;
begin;
writeln('A array:');
for i:=1 to 3 do
begin;
writeln;
  for j:=1 to 3 do
   begin;
    a[i,j]:=random(-10,10);
    write(a[i,j]:4);
   end;
end;
writeln;
writeln('B array:');
for i:=1 to 3 do
begin;
writeln;
  for j:=1 to 3 do
   begin;
    b[i,j]:=random(-10,10);
    write(b[i,j]:4);
   end;
end;
writeln;
writeln('C array:');
for i:=1 to 3 do
begin;
writeln;
  for j:=1 to 3 do
   begin;
    c[i,j]:=a[i,j]*b[i,j];
    write(c[i,j]:4);
   end;
end;
end.
2)var a:array of array of integer;
i,j,k,n,u:integer;
begin;
randomize;
readln(n);
setlength(a,n+1);
for i:=1 to n do
setlength(a[i],n+1);
writeln('A array:');
for i:=1 to n do
 begin;
  writeln;
   for j:=1 to n do
    begin;
     a[i,j]:=random(-10,10);
     write(a[i,j]:4);
    end;
 end;
for i:=1 to n do
 begin;
  for j:=1 to n do
   u+=a[i,j];
 if u<0 then inc(k);
 u:=0;
 end;
writeln;
write('Result:',k);
end.

1)var a:array[1..3,1..3] of integer;
b:array[1..3,1..3] of integer;
c:array[1..3,1..3] of integer;
i,j:integer;
begin;
writeln('A array:');
for i:=1 to 3 do
begin;
writeln;
  for j:=1 to 3 do
   begin;
    a[i,j]:=random(10)-10;
    write(a[i,j]:4);
   end;
end;
writeln;
writeln('B array:');
for i:=1 to 3 do
begin;
writeln;
  for j:=1 to 3 do
   begin;
    b[i,j]:=random(-10,10);
    write(b[i,j]:4);
   end;
end;
writeln;
writeln('C array:');
for i:=1 to 3 do
begin;
writeln;
  for j:=1 to 3 do
   begin;
    c[i,j]:=a[i,j]*b[i,j];
    write(c[i,j]:4);
   end;
end;
end.
2)var a:array[1..1000,1..1000] of integer;
i,j,k,n,u:integer;
begin;
randomize;
readln(n);
writeln('A array:');
for i:=1 to n do begin;
  writeln;
   for j:=1 to n do
    begin;
     a[i,j]:=random(10)-10;
     write(a[i,j]:4);
    end;
 end;
for i:=1 to n do begin;
  for j:=1 to n do
   u+=a[i,j];
 if u<0 then inc(k);
 u:=0;
 end;
writeln;
write('Result:',k);
end.