uses crt;
const nmax=20;
var a:array[1..nmax,1..nmax] of integer;
n,m,i,j,imn:byte;
mn,x:integer;
begin
clrscr;
randomize;
repeat
write('Количество строк=');
readln(n);
until n in [1..nmax];
repeat
write('Количество столбцов=');
readln(m);
until m in [1..nmax];
writeln('Исходная матрица:');
for i:=1 to n do
begin
for j:=1 to m do
begin
a[i,j]:=random(50);
write(a[i,j]:4);
end;
writeln;
end;
writeln;
imn:=1;mn:=a[1,1];
for i:=1 to n do
for j:=1 to m do
if a[i,j]<mn then
begin
mn:=a[i,j];
imn:=i;
end;
writeln('Минимальный элемент=',mn,' в строке ',imn);
for i:=1 to m-1 do
for j:=i+1 to m do
if a[imn,i]>a[imn,j] then
begin
x:=a[imn,i];
a[imn,i]:=a[imn,j];
a[imn,j]:=x;
end;
writeln('Измененная матрица:');
for i:=1 to n do
begin
for j:=1 to m do
write(a[i,j]:4);
writeln;
end;
readln
end.