Const nx=30;var i,j,p,n:integer;A:array[1..nx,1..nx] of integer;d,Sn,min:real;begin p:=1;write('Введите размер матрицы');Read(n);for i:=1 to n do beginfor j:=1 to n do beginA[i,j]:=random(3)-2;write(A[i,j]:4);end;writeln;end;writeln;writeln;for i:=1 to n do beginfor j:=1 to n do beginif i = j then begin if A[i,j]<> 0 then p:=p* A[i,j];write(A[i,j]:4);endelse write(' ':4);end;writeln;end;write('p =',p);writeln;writeln;for i:=1 to n do beginfor j:=1 to n do beginif (i= n -j +1) then begin if A[i,j]<> 0 then p:=p* A[i,j];write(A[i,j]:4);endelse write(' ':4);end;writeln;end;write('p =',p);end.
Const n=20; var a:array[1..n]of integer; i,b,k,c,f,g,h:integer; begin for i:=1 to n do a[i]:=Random(70)-20; for i:=1 to n do write(a[i],' '); writeln; for i:=1 to n do begin if (a[i] mod 5 = 0) and (a[i] mod 10<>0) or (a[i]=50) then begin b:=i; for b:=i to (n-1) do a[i]:=a[i+1]; end; end; for i:=1 to n do write(a[i],' '); write('введите к '); read(k); for i:=1 to n do begin if a[i] mod i = 0 then begin c:=i; for i:=n downto c+1 do begin a[i]:=a[i-1]; a[c+1]:=k; end;end;end; for i:=1 to n do write(a[i],' '); writeln; f:=0; g:=0; for i:=n downto 1 do begin if (a[i]>0) then f:=i; end; if a[f]=0 then write('нет положительных '); for i:=n downto 1 do begin if (a[i]<0) then g:=i; end; if (a[g]=0) then write('нет отрицательных '); if (a[f]<>0) and (a[g]<>0) then begin h:=a[f]; a[f]:=a[g]; a[g]:=h; end; for i:=1 to n do write(a[i],' '); writeln; end.
