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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.
Var a:array[1..15] of integer;
i,s:integer;
Begin
I:=1;
While i<=15 do
Begin
Write('Nhap phan tu thu ',i,' = ');readln(a[i]);
s:=s+a[i];
i:=i+1;
End;
Write('Tong la ',s);
Readln;
End.
uses crt;
var n,t1:integer;
s:real;
begin
clrscr;
t1:=0;
s:=1;
repeat
readln\(\left(n\right)\);
if n mod 2=0 then t1:=t1+n
else s:=s*n;
until n=0;
writeln\(\left(t1\right)\);
writeln\(\left(s:4:2\right)\);
readln;
end.
program Le_Nho_Hon_Hoac_Bang_n;
uses crt;
var
n, i: integer;
begin
clrscr;
write('Nhap vao mot so nguyen duong n: ');
readln(n);
while n <= 0 do
begin
writeln('So ban nhap khong hop le. Xin vui long nhap lai: ');
readln(n);
end;
clrscr;
writeln('Cac so le nho hon hoac bang ', n, ' la:');
i := 1;
while i <= n do
begin
if i mod 2 <> 0 then
writeln(i);
i := i + 1;
end;
readln;
end.
program tong_so;
var
tong, so: integer;
begin
tong := 0;
while tong < 20 do
begin
write('Nhập số nguyên: ');
readln(so);
tong := tong + so;
end;
writeln('Tổng các số đã nhập là: ', tong);
end.
1:
uses crt;
var t,x,i,n:integer;
begin
clrscr;
t:=0;
n:=10;
for i:=1 to n do
begin
readln(x);
t:=t+x;
end;
write(t);
readln;
end.
2:
uses crt;
var dem,x,i,n:integer;
begin
clrscr;
dem:=0;
n:=10;
for i:=1 to n do
begin
readln(x);
if x mod 2=0 then inc(dem);
end;
write(dem);
readln;
end.
3
program Cacsole;
uses crt;
var M, N, i: integer;
begin
clrscr;
write ('Nhap M= '); readln(M);
write ('Nhap N= '); readln(N);
for i := M to N do
if i mod 2 = 1 then
write (i,' ');
readln;
end.
Câu 1:
Program HOC24;
var i,p: integer;
t: longint;
begin
write('Nhap P: '); readln(p);
t:=0;
for i:=1 to p do if i mod 2<>0 then t:=t+i;
write('Tong cac so le la: ',t);
readln
end.
Program HOC24;
var i,n: integer;
S: longint;
begin
write('Nhap N: '); readln(n);
i:=2; s:=0;
while i<=n do
begin
s:=s+i;
i:=i+2;
end;
write('S=',S);
readln
end.
program TongCacSoChan;
var
n, s, i: integer;
begin
write('Nhap n: ');
readln(n);
s := 0;
i := 2;
while i <= n do
begin
s := s + i;
i := i + 2;
end;
writeln('Tong cac so chan la: ', s);
readln;
end.
uses crt;
var n,i,t1,t2:integer;
begin
clrscr;
t1:=0;
t2:=0;
repeat
readln(n);
if n mod 2=0 then t1:=t1+n
else t2:=t2+n;
until n=0;
writeln(t1,' ',t2);
readln;
end.