const
m=4;
n=10;
var
a:array[1..m,1..n] of integer;
b:array[1..m*n] of boolean;
i,j:integer;
begin
for i:=1 to m do
begin
for j:=1 to n do
begin
a[i,j]:=20-random(40);
write(' ',a[i,j]:3);
end;
writeln();
end;
writeln('--------') ;
for i:=1 to m do
for j:=1 to n do
begin
if a[m,n]<0 then
begin
b[m]:=TRUE;
break;
end
else
b[m]:=FALSE;
end;
writeln('--------') ;
for i:=1 to m do
begin
for j:=1 to n do
write(a[i,j]:3);
writeln;
end;
end.
Следующий вариант
uses crt;
const nmax=20;
var a:array[1..nmax,1..nmax] of integer;
b:array[1..nmax] of boolean;
m,n,i,j,k:byte;
begin
clrscr;
randomize;
repeat
write('Количество строк до ',nmax,' n=');
readln(n);
until n in [1..nmax];
repeat
write('Количество столбцов до ',nmax,' m=');
readln(m);
until m in [1..nmax];
writeln('Исходная матрица:');
for i:=1 to n do
begin
k:=0;
for j:=1 to m do
begin
a[i,j]:=random(50)-2;
write(a[i,j]:4);
if a[i,j]<0 then k:=1;
end;
writeln;
if k=0 then b[i]:=false else b[i]:=true;
end;
writeln;
writeln('Наличие отрицательных элементов в строках матрицы:');
for i:=1 to n do
writeln('Строка ',i:2,' ',b[i]);
readln
end.