1.var sum,n,i:integer;mass:array[1..10000] of integer;beginwrite('N=');read(n);for i:=1 to n dobeginmass[i]:=random(50);write('mass[',i,']=',mass[i]);writeln;sum:=sum+mass[i];end;writeln('Сумма равна ',sum);end.2.var n,i:integer;beginwrite('N=');read(n);i:=1;while i<=n do beginif i mod 2<>0 thenwrite(i,',');i:=i+1;end;end.3. var amax,i,n:integer;mass:array[1..10000] of integer;beginwriteln('N=');read(n);for i:=1 to n do beginmass[i]:=random(100);write('mass[',i,']=',mass[i]);writeln;end;amax:=mass[1];for i:=2 to n doif mass[i]>amax then amax:=mass[i];writeln('Максимальный элемент в массиве равен ',amax);end.