uses crt;
const nmax=20;
var a:array[1..nmax,1..nmax] of integer;
m,n,i,j,k:byte;
x:integer;
begin
clrscr;
randomize;
repeat
write('Количество строк до ',nmax,' m=');
readln(m);
until m in [1..nmax];
repeat
write('Количество столбцов до ',nmax,' n=');
readln(n);
until n in [1..nmax];
writeln('Исходная матрица:');
for i:=1 to m do
begin
for j:=1 to n do
begin
a[i,j]:=random(50);
write(a[i,j]:4);
end;
writeln;
end;
writeln;
for j:=1 to n do
for i:=1 to m-1 do
for k:=i+1 to m do
if a[i,j]>a[k,j] then
begin
x:=a[i,j];
a[i,j]:=a[k,j];
a[k,j]:=x;
end;
writeln('Столбцы упорядочены по возрастанию:');
for i:=1 to m do
begin
for j:=1 to n do
write(a[i,j]:4);
writeln;
end;
readln
end.