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uses crt;
var n,i,o,d:integer;
function ktnt(n:integer): integer;
var i,d:integer;
begin
d:=0;
for i:=1 to sqrt(n) do
if (n mod i=0) then d:=d+1;
if d=2 then ktnt=0
else ktnt=1;
end;
begin
readln(n);
writeln(' so nguyen to be hon hoac bang n la'); {a}
for i:=1 to n do
if ktnt(i)=0 then writeln(i);
writeln('so nguyen to nho nhat khong be hon n');
o:=n;
while o>0 do
begin
if ktnt(o)=0 then
begin
write(o);
break;
end;
o:=o+1;
end;
writeln('cặp số nguyên tố là hai số nguyên lẻ liên tiếp nhỏ hơn hoặc bằng n');
o:=0;
o:=1;
d:=0;
for i:=o+2 to n do
begin
if ktnt(i)=0 then
begin
d:=d+1;
write(i,' ');
if d<2 then continue;
end;
d:=0;
writeln;
end;
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long n;
int main()
{
cin>>n;
if (n%2==0) cout<<"Chan";
else cout<<"Le";
return 0;
}
var A:
array[1..n] of int64;
i, n, count: integer;
begin
write('Nhap so phan tu cua mang: ');
readln(n);
for i := 1 to n do
begin
write('Nhap phan tu thu ', i, ': ');
readln(A[i]);
end;
count := 0;
for i := 1 to n do
if A[i] > 0 then
count := count + 1;
writeln('So luong cac so nguyen duong trong mang la: ', count); end.
uses crt;
var a,b,i,x,y,n,m:integer;
st1,st2,st3,st4:string;
begin
clrscr;
write('Nhap a='); readln(a);
write('Nhap b='); readln(b);
str(a,st1);
str(b,st2);
st3:='';
for i:=length(st1) downto 1 do
st3:=st3+st1[i];
st4:='';
for i:=length(st2) downto 1 do
st4:=st4+st2[i];
val(st3,x,y);
val(st4,n,m);
writeln('So doi xung cua ',a,' la: ',x);
writeln('So doi xung cua ',b,' la: ',n);
writeln('Tong hai so doi xung cua ',a,' va ',b,' la: ',x+n);
readln;
end.
program tong;
uses crt;
var M, N, S, i: integer;
begin
clrscr;
write ('Nhap M= '); readln(M);
write ('Nhap N= '); readln(N);
s : = 0;
for i := M to N do if (i mod 2 = 0) then s:= s + i;
write (T'ong cac so chan trong pham vi tu M den N = ',s);
readln;
end.
mk mới làm tổng thui nghen
#include <bits/stdc++.h>
using namespace std;
long long a,b,x,y;
int main()
{
cin>>a>>b;
x=0;
while (a>0)
{
x=x*10+(a%10);
a=a/10;
}
cout<<x<<endl;
y=0;
while (b>0)
{
y=y*10+(b%10);
b=b/10;
}
cout<<y;
return 0;
}
uses crt;
var a,b,i,x,y,n,m:integer;
st1,st2,st3,st4:string;
begin
clrscr;
write('Nhap a='); readln(a);
write('Nhap b='); readln(b);
str(a,st1);
str(b,st2);
st3:='';
for i:=length(st1) downto 1 do
st3:=st3+st1[i];
st4:='';
for i:=length(st2) downto 1 do
st4:=st4+st2[i];
val(st3,x,y);
val(st4,n,m);
writeln('So doi xung cua ',a,' la: ',x);
writeln('So doi xung cua ',b,' la: ',n);
writeln('Tong hai so doi xung cua ',a,' va ',b,' la: ',x+n);
readln;
end.
Bài 1:
uses crt;
var cd,cr,i,j:integer;
begin
clrscr;
write('chieu dai='); readln(cd);
write('chieu rong='); readln(cr);
if (cd>0) and (cr>0) and (cd>=cr) then
begin
for i:=1 to cr do
begin
for j:=1 to cd do
write('*');
writeln;
end;
end
else writeln('vui long nhap lai');
readln;
end.
Bài 2:
uses crt;
var a,s,dem:integer;
begin
clrscr;
s:=0;
dem:=0;
repeat
write('nhap so a:'); readln(a);
s:=s+a;
dem:=dem+1;
until a=0;
writeln('tong cua cac so da nhap la: ',s);
writeln('trung binh cong cua cac so da nhap la: ',s/dem:4:2);
readln;
end.
Bài 3:
uses crt;
var i:integer;
begin
clrscr;
writeln('bang tinh can bac 2 cua 100 so nguyen duong dau tien la: ');
for i:=1 to 100 do
begin
write('can bac 2 cua ',i,' la: ');
writeln(sqrt(i):4:2);
end;
readln;
end.
kh thấy cgi bé ơi =)))))