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uses crt;
var n,i,t:integer;
begin
clrscr;
readln(n);
t:=0;
for i:=1 to n do
if i mod 2=0 then t:=t+i;
write(t);
readln;
end.
Program HOC24;
var n,d,i: integer;
B: array[1..100] of integer;
t: longint;
begin
write('Nhap N: '); readln(n);
for i:=1 to n do
begin
write('B[',i,']='); readln(b[i]);
end;
d:=0; t:=0;
for i:=1 to n do
if b[i]>0 then
begin
d:=d+1;
t:=t+b[i];
end;
writeln('Tong cac so duong trong day so la: ',t);
write('Co ',d,' so duong trong day');
readln
end.
uses crt;
var b:array[1..100] of longint;
n,i,d,s:longint;
begin
clrscr;
write('n='); readln(n);
for i:=1 to n do
begin
write('a[',i,']: '); readln(b[i]);
if b[i]>0 then begin
inc(d);
inc(s,b[i]);
end;
end;
writeln('Tong cac so duong: ',s);
writeln('Co ',d,' so duong');
readln;
end.
Bài 1:
uses crt;
var a:array[1..100]of integer;
i,n,min:integer;
begin
clrscr;
write('n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
min:=a[1];
for i:=1 to n do
if min>a[i] then min:=a[i];
writeln(min);
readln;
end.
Bài 2:
uses crt;
var a:array[1..100]of integer;
i,n,max:integer;
begin
clrscr;
write('n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
max:=a[1];
for i:=1 to n do
if max<a[i] then max:=a[i];
writeln(max);
readln;
end.
Câu 2:
a) Mô tả thuật toán
-Bước 1: Nhập n và nhập dãy số
-Bước 2: dem←0; i←1; t←0;
-Bước 3: Nếu a[i] mod 2=0 thì dem←dem+1 và t←t+a[i];
-Bước 4: i←i+1;
-Bước 5: Nếu i<=n thì quay lại bước 3
-Bước 6: Xuất t và dem
-Bước 7: Kết thúc
Câu 2:
b) uses crt;
var a:array[1..100]of integer;
i,n,t,dem:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
t:=0;
dem:=0;
for i:=1 to n do
if a[i] mod 2=0 then
begin
t:=t+a[i];
inc(dem);
end;
writeln('So so chan la: ',dem);
writeln('Tong cac so chan la: ',t);
readln;
end.
Câu 1:
program Tinhtong:
var
n, i, sum: integer;
begin
write('Nhap n: ');
readln(n);
sum := 0;
for i := 2 to n do
begin
if i mod 2 = 0 then
begin
sum := sum + i;
end;
end;
writeln('Tong cac so chan tu 2 toi ', n, ' la ', sum);
readln;
end.
Câu 2:
program Tinhtong:
var
n, i, sum: integer;
begin
write('Nhap n: ');
readln(n);
sum := 0;
for i := 1 to n do
begin
if i mod 2 = 1 then
begin
sum := sum + i;
end;
end;
writeln('Tong cac so le tu 1 toi ', n, ' la ', sum);
readln;
end.
uses crt;
var a:array[1..100]of integer;
i,n:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
for i:=1 to n do
if a[i] mod 2=0 then write(a[i]:4);
readln;
end.
uses crt;
var a:array[1..1000000] of longint;
n,i: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('Cac so chan: ');
for i:=1 to n do if a[i] mod 2=0 then write(a[i],' ');
readln;
end.
Program HOC24;
var a: array[1..32000] of integer;
i,max,min,n: integer;
begin
write('Nhap so phan tu N: '); readln(N);
for i:=1 to n do
begin
write('a[',i,']='); readln(a[i]);
end;
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('So nho nhat la :',max);
write('So lon nhat la: ',min);
readln
end.
uses crt;
var a:array[1..100]of integer;
i,n,max,min:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
max:=a[1];
min:=a[1];
for i:=1 to n do
begin
if max<a[i] then max:=a[i];
if min>a[i] then min:=a[i];
end;
writeln('So lon nhat la: ',max);
writeln('So nho nhat la: ',min);
readln;
end.
Câu 4:
uses crt;
var a:array[1..100]of integer;
i,n,dem,t:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
dem:=0;
t:=0;
for i:=1 to n do
if (10<a[i]) and (a[i]<20) then
begin
inc(dem);
t:=t+a[i];
end;
writeln('So phan tu lon hon 10 va nho hon 20 la: ',dem);
writeln('Tong cac phan tu lon hon 10 va nho hon 20 la: ',t);
readln;
end.
Câu 5:
uses crt;
var a:array[1..100]of integer;
i,n,dem,t:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
dem:=0;
t:=0;
for i:=1 to n do
if a[i] mod 2=0 then
begin
inc(dem);
t:=t+a[i];
end;
writeln('So so chan la: ',dem);
writeln('Tong cac so chan la: ',t);
readln;
end.
Câu 6:
uses crt;
var n,i:integer;
begin
clrscr;
readln(n);
for i:=1 to n do
if n mod i=0 then write(i:4);
readln;
end.
5:
uses crt;
var n,i,dem:integer;
begin
clrscr;
readln(n);
dem:=0;
for i:=0 to n do
if i mod 2=1 then
begin
write(i:4);
dem:=dem+1;
end;
writeln;
writeln(dem);
readln;
end.