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![](https://rs.olm.vn/images/avt/0.png?1311)
#include <bits/stdc++.h>
using namespace std;
long long a,b,c;
int main()
{
cin>>a>>b>>c;
cout<<a+b+c<<endl;
cout<<a*b*c;
return 0;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
program timtich;
uses crt;
var i,n:integer;
tich:longint;
a:array[1..100]of integer;
begin
clrscr;
write('nhap so n:');readln(n);
for i:=1 to n do
begin
write('nhap phan tu a[',i,']:');readln(a[i]);
end;
for i:=1 to n do
write(a[i]:4);
tich:=1;
writeln;
for i:=1 to n do
if a[i] mod 2=0 then tich:=tich*a[i];
writeln('tich ca phan tu chan cua mang la:',tich);
readln;
end.
program timtong;
uses crt;
var i,n:integer;
tong:longint;
a:array[1..100]of integer;
begin
clrscr;
write('nhap so n:');readln(n);
for i:=1 to n do
begin
write('nhap phan tu a[',i,']:');readln(a[i]);
end;
for i:=1 to n do
write(a[i]:4);
tong:=0;
writeln;
for i:=1 to n do
if a[i] mod 2=0 then tong:=tong+a[i];
writeln('tong cac phan tu chan cua mang la:',tong);
tong:=0;
writeln;
for i:=1 to n do
if a[i] mod 2=1 then tong:=tong+a[i];
writeln('tong cac phan tu le cua mang la:',tong);
readln;
end.
Bài 1:
uses crt;
var a:array[1..100]of integer;
i,n,s:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
s:=1;
for i:=1 to n do
if a[i] mod 2=0 then s:=s*a[i];
writeln(s);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var n,i,s:integer;
begin
clrscr;
write('Nhap n='); readln(n);
s:=0;
for i:=1 to n do
s:=s+i;
writeln(s);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
2:
#include <bits/stdc++.h>
using namespace std;
long long a,b;
int main()
{
cin>>a>>b;
cout<<a%b<<endl;
cout<<a/b;
return 0;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
Bài 3:
#include <bits/stdc++.h>
using namespace std;
long long a,b;
int main()
{
cin>>a>>b;
cout<<a%b;
cout<<a/b;
return 0;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
c1:
#include <bits/stdc++.h>
using namespace std;
long long i,n,s;
int main()
{
cin>>n;
s=1;
for (i=1; i<=n; i++) s=s*i;
cout<<s;
return 0;
}
Câu 2:
#include <bits/stdc++.h>
using namespace std;
long long i,n,s;
int main()
{
cin>>n;
s=1;
for (i=1; i<=n; i++) if (i%2==0) s=s*i;
cout<<s;
return 0;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
Câu 1:
uses crt;
var n,i,dem,j,kt1,kt2,a,b,kt:integer;
begin
clrscr;
write('Nhap n='); readln(n);
dem:=0;
if n mod 2=1 then
begin
a:=2;
b:=n-a;
kt:=0;
for i:=2 to trunc(sqrt(b)) do
if b mod i=0 then kt:=1;
if kt=0 then inc(dem);
end
else begin
for i:=2 to n div 2 do
begin
a:=i;
b:=n-i;
kt1:=0;
kt2:=0;
for j:=2 to trunc(sqrt(a)) do
if a mod j=0 then kt1:=1;
for j:=2 to trunc(sqrt(b)) do
if b mod j=0 then kt2:=1;
if (kt1=0) and (kt2=0) then inc(dem);
end;
end;
writeln('So cach phan tich ',n,' thanh tong hai so nguyen to la: ',dem);
readln;
end.
Câu 2:
uses crt;
var n,x:integer;
{-----------------ham-kiem-tra-nguyen-to-----------------}
function ktnt(x:integer):boolean;
var kt:boolean;
i:integer;
begin
kt:=true;
for i:=2 to trunc(sqrt(x)) do
if x mod i=0 then
begin
kt:=false;
break;
end;
if kt=true then ktnt:=true
else ktnt:=false;
end;
{---------------ham-kiem-tra-so-doi-xung---------------}
function ktdx(x:integer):boolean;
var kt:boolean;
d,i:integer;
st:string;
begin
str(x,st);
d:=length(st);
kt:=true;
for i:=1 to d do
if st[i]<>st[d-i+1] then
begin
kt:=false;
break;
end;
if kt=true then ktdx:=true
else ktdx:=false;
end;
{--------------chuong-trinh-chinh---------------}
begin
clrscr;
repeat
write('Nhap n='); readln(n);
until n>0;
if (ktnt(n)=true) and (ktdx(n)=true) then writeln(n,' la so nguyen to doi xung')
else writeln(n,' khong la so nguyen to doi xung');
x:=n+1;
repeat
x:=x+1;
until (ktnt(x)=true) and (ktdx(x)=true);
writeln('So nguyen to doi xung nho nhat lon hon ',n,' la: ',x);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
#include <bits/stdc++.h>
using namespace std;
long long a,b,s,p;
int main()
{
cin>>a>>b;
s=a+b;
p=a*b;
cout<<"Tong la:"<<s<<endl;
cout<<"Tich la:"<<p;
return 0;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var a,b:integer;
begin
clrscr;
readln(a,b);
writeln('Tong hai so la: ',a+b);
writeln('Tong binh phuong hai so la: ',sqr(a)+sqr(b));
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long a,b,c;
int main()
{
cin>>a>>b>>c;
cout<<a+b+c<<endl;
cout<<a*b*c;
return 0;
}