9. Сравните две модели и назовите разницу.

1.
uses crt;
const n=20;
var i,cp1,cn1:integer;
p,cp,cn:real;
z:array[1..n] of integer;
begin
randomize;
for i:=1 to n do
begin
z[i]:=random(20,-20);
if z[i]>=0 then
begin
cp:=cp+z[i];
cp1:=cp1+1;
end
else
begin
cn:=cp+z[i];
cn1:=cn1+1;
end;
cp:=cp/cp1;
cn:=cn/cn1;
end;
if cp>cn then
p:=cp+cn
else
p:=cp*cn;
for i:=1 to n do
write(z[i],' ');
writeln(#13#10,cp:5:2,' ',cn:5:2,' ',p:5:2);
end.
2.
uses crt;
const n=15;m=4;
var i,j,k,flag,count:integer;
a:array[1..n,1..m] of integer;
temp:array[1..100] of integer;
b:array[1..100,1..m] of integer;
begin
randomize;
k:=1;
count:=0;
for i:=1 to n do
begin
flag:=1;
for j:=1 to m do
begin
a[i,j]:=random(51,1);
if (a[i,j]<10) or (a[i,j]>40) then
flag:=0
end;
if flag=1 then
begin
temp[k]:=i;
count:=count+1;
k:=k+1;
end;
end;
for i:=1 to count do
for j:=1 to m do
b[i,j]:=a[temp[i],j];
writeln('Массив A:');
for i:=1 to n do
begin
for j:=1 to m do
write(a[i,j],' ');
write(#13#10);
end;
if count=0 then
writeln('Нет подходящих строк.')
else
begin
writeln(#13#10,'Массив B:');
for i:=1 to count do
begin
for j:=1 to m do
write(b[i,j],' ');
write(#13#10);
end;
end;
end.

Program project1;
uses
crt,math;
var  s:real;  i,j,f:real;  a:integer;
begin 
writeln('vvedite 1 chislo ');readln(i);
  writeln('vvedite 2 chislo ');readln(j); 
 writeln('vvedite 3 chislo ');readln(f); 
 s:=i; 
 if j<s then s:=j; 
 if f<s then s:=f; 
 if s<0 then 
 begin  
  if i<0 then inc(a);  
  if j<0 then inc(a);  
  if f<0 then inc(a);  
  writeln('kolichestvo otricatelnix ',a:2);
  end 
 else  
begin  
  if i>0 then i:=i*-1;
  if j>0 then j:=i*-1;
  if f>0 then f:=i*-1; 
 end; 
 writeln('min chislo ',s:2:0); 
 readln;
end.