1.
program ct;
uses crt;
var i,n:integer;
A:array[1..100] of integer;
begin
clrscr;
write('nhap n:=');readln(n);
for i:=1 to n do
begin
write('nhap mang A[',i,']:=');readln(A[i]);
end;
for i:=1 to n do
if A[i]>0 then writeln('day so duong la:',A[i]:2);
readln
end.
2.
program ct;
uses crt;
var i,n,s:integer;
A:array[1..100] of integer;
begin
clrscr;
write('nhap n:=');readln(n);
for i:=1 to n do
begin
write('nhap mang A[',i,']:=');readln(A[i]);
end;
s:=0;
for i:=1 to n do s:=s+A[i];
writeln('tong la:',s);
readln
end.
3.
program ct;
uses crt;
var i,n,tam.j:integer;
A:array[1..100] of integer;
begin
clrscr;
write('nhap n:=');readln(n);
for i:=1 to n do
begin
write('nhap mang A[',i,']:=');readln(A[i]);
end;
for i:=1 to n-1 do
for j:=i+1 to n do
if A[i]>A[j] then
begin
tam:=A[i];
A[i]:=A[j];
A[j]:=tam;
end;
writeln;
write('day so dau khi sap xep la:');
for i:=1 to n do
write(A[i]:4);
readln
end.
4.
program ct;
uses crt;
var i,n,Max,Min:integer;
A:array[1..100] of integer;
begin
clrscr;
write('nhap n:=');readln(n);
for i:=1 to n do
begin
write('nhap mang A[',i,']:=');readln(A[i]);
end;
Max:=A[1]; Min:=A[1];
for i:=2 to n do
begin
if Max<A[i] then Max:=A[i];
if Min>A[i] then Min:=A[i];
end;
writeln('gia tri lon nhat la',Max);
writeln('gia tri nho nhat la',Min);
readln
end.
