Verified answer

Ответ:

const n=5;

var a:array [1..n,1..n] of integer;

i,j,s:integer;

begin

writeln ('Массив: ');

for i:= 1 to n do

begin

for j:=1 to n do

begin

a[i,j]:=Random(100);

write(a[i,j]:3)

end;

writeln;

end;

for i:= 1 to n do

if i mod 2 = 0 then for j:=1 to n do s:=s+a[i,j];

writeln ('Сумма чётных строк равна: ',s)

end.