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#include <bits/stdc++.h>
using namespace std;
long long n;
int main()
{
cin>>n;
bool kt=true;
for (int i=2; i*i<=n; i++)
if (n%i==0) kt=false;
if (kt==true && n>=2) cout<<"YES";
else cout<<"NO";
return 0;
}
Câu 2:
#include <bits/stdc++.h>
using namespace std;
long long n;
int main()
{
cin>>n;
if (n>0 && n%5==0) cout<<"Phai";
else cout<<"Khong phai";
}
program tinh;
uses crt;
var i,n,x:integer;
t:longint;
function luythua(n,x:integer):longint;
var m:integer;
begin
m:=1;
for i:=1 to n do
m:=m*x;
luythua:=m;
end;
function giaithua(n:integer):longint;
begin
if n=0 then giaithua:=1
else giaithua:=n*giaithua(n-1);
end;
begin
clrscr;
write('nhap n,x:');readln(n,x);
t:=0;
for i:=1 to n do
t:=t+giaithua(luythua(i,x));
writeln(t);
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long n,x;
int main()
{
cin>>n>>x;
cout<<pow(n,x);
return 0;
}
program tim_max;
uses crt;
var i,n,max:integer;
x:array[1..100]of byte;
begin
clrscr;
write('nhap so n:');readln(n);
i:=1;
while i<=n do
begin
write('x[',i,']=');readln(x[i]);
i:=i+1;
end;
max:=x[1];i:=1;
while i<=n do
begin
if max<x[i] then max:=x[i];
i:=i+1;
end;
write('so lon nhat la:',max);
readln;
end.
uses crt;
var x,y:integer;
begin
clrscr;
write('Nhap x='); readln(x);
write('Nhap y='); readln(y);
writeln(x+y);
readln;
end.
1:
uses crt;
var n,i,t:integer;
begin
clrscr;
readln(n);
t:=0;
for i:=1 to n do
t:=t+i*i;
write(t);
readln;
end.
2
program bt2;
var i,n,t:integer;
begin
readln(n);
s:=0;
for i:=1 to n do
if i mod 2 = 1 then s:=s+i;
readln;
end.
Bài 1:
uses crt;
var m,n,i,t:integer;
begin
clrscr;
write('Nhap m='); readln(m);
write('Nhap n='); readln(n);
t:=0;
for i:=m to n do
t:=t+i;
writeln(t);
readln;
end.
2:
uses crt;
var n:integer;
{---------------chuong-trinh-con-kiem-tra-chan-le---------------------}
function ktcl(x:integer):boolean;
begin
if x mod 2=0 then ktcl:=true
else ktcl:=false;
end;
{--------------------chuong-trinh-con-kiem-tra-duong-am-------------------}
fucntion ktda(x:integer):boolean;
begin
if x>0 then ktda:=true
else if x<0 then ktda:=false;
end;
{--------------------chuong-trinh-chinh-------------------------}
begin
clrscr;
write('Nhap n='); readln(n);
if ktcl(n)=true then writeln('Day la so chan')
else writeln('Day la so le');
if ktda(n)=true then writeln('Day la so duong')
else writeln('Day la so am');
readln;
end.
Câu 1:
uses crt;
var n,i:integer;
s:real;
begin
clrscr;
write('Nhap n='); readln(n);
s:=1;
for i:=1 to n do
s:=s*i;
writeln(s);
readln;
end.
Câu 2:
uses crt;
var t,i,n:integer;
begin
clrscr;
write('Nhap n='); readln(n);
t:=0;
for i:=1 to n do
t:=t+i;
writeln(t);
readln;
end.
