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uses crt;
var n:real;
begin
clrscr;
repeat
readln(n);
if (n<1) or (n>10) then writeln('Hay nhap lai');
until (1<=n) and (n<=10);
readln;
end.
Bài 1:
uses crt;
var n,i,s:integer;
begin
clrscr;
write('Nhap n='); readln(n);
s:=0;
i:=1;
while i<=n do
begin
s:=s+i;
inc(i);
end;
writeln('Tong cac so trong khoang tu 1 den ',n,' la: ',s);
readln;
end.
Bài 2:
uses crt;
var n,i,s:integer;
begin
clrscr;
write('Nhap n='); readln(n);
s:=0;
i:=1;
while i<=n do
begin
s:=s+i;
i:=i+2;
end;
writeln('Tong cac so le trong khoang tu 1 den ',n,' la: ',s);
readln;
end.
uses crt;
var i,n,kt:integer;
begin
clrscr;
readln(n);
kt:=0;
for i=2 to trunc(sqrt(n)) do
if n mod i=0 then kt:=1;
if (kt=0) and (n>1) then write('phai')
else write('Khong phai');
readln;
end.
Var i,n,souoc:integer;
Begin
While n <= 1 do
Begin
Write('Nhap n = ');readln(n);
End;
For i:=1 to n do
If n mod i = 0 then souoc:=souoc+1;
If souoc = 2 then write(n,' la so nguyen to')
Else write(n,' khong la so nguyen to');
Readln;
End.
program max_min;
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('a[',i,']=');readln(a[i]);
end;
writeln('day vua nhap la:');
for i:=1 to n do
write(a[i]:3);
readln;
end.
uses crt;
var x,n,i,t:integer;
begin
clrscr;
readln(n);
t:=0;
for i:=1 to n do
begin
readln(x);
if x mod 2=0 then t:=t+x;
end;
writeln(t);
readln;
end.
program ideone;
var i,n,x,res:longint;
begin
readln(n);
res:=0;
for i:=1 to n do
begin
read(x);
if x mod 2 = 0 then
res:=res+x;
end;
write(res);
end.
program max_min;
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('a[',i,']=');readln(a[i]);
end;
writeln('day vua nhap la:');
for i:=1 to n do
write(a[i]:3);
writeln;
max:=a[1];min:=a[1];
for i:=1 to n do
begin
if a[i]>max then max:=a[i];
if a[i]<min then min:=a[i];
end;
writeln('gia tri lon nhat: ',max,' gia tri nho nhat: ',min);
readln;
end.
uses crt;
var a:array[1..1000000] of longint;
n,i,max,min:longint;
begin
clrscr;
write('Nhap so luong phan tu: '); readln(n);
for i:=1 to n do
begin
write('Nhap phan tu thu ',i,': '); readln(a[i]);
end;
write('Day so vua nhap: ');
for i:=1 to n do write(a[i],' '); writeln;
max:=a[1];min:=a[1];
for i:=2 to n do
begin
if a[i]>max then max:=a[i];
if a[i]<min then min:=a[i];
end;
writeln('GTLN: ',max);
writeln('GTNN: ',min);
readln;
end.
uses crt;
var z:real;
begin
clrscr;
Repeat
Write('Nhap z: ');
Read(z);
If (z<1) or (z>10) then write('Ban da nhap sai, hay nhap lai !');
Until (z>=1) and (z<=10);
Readln;
End.