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![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var a:array[1..100]of integer;
i,n,t,max: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];
for i:=1 to n do
if max<a[i] then max:=a[i];
t:=0;
for i:=1 to n do
if max=a[i] then t:=t+a[i];
writeln('Tong cac phan tu co gia tri lon nhat la: ',t);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var a:array[1..100]of integer;
i,n,kt,dem,j:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
dem:=0;
for i:=1 to n do
if a[i]>1 then
begin
kt:=0;
for j:=2 to trunc(sqrt(a[i])) do
if a[i] mod j=0 then
begin
kt:=1;
break;
end;
if kt=0 then inc(dem);
end;
writeln('So phan tu la so nguyen to la: ',dem);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
1:
#include <bits/stdc++.h>
using namespace std;
long long t1,t2,i,n,x;
int main()
{
cin>>n;
t1=0;
t2=0;
for (i=1; i<=n; i++)
{
cin>>x;
if (x>0) t1=t1+x;
else t2=t2+x;
}
cout<<t1<<" "<<t2;
return 0;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var a:array[1..100]of integer;
i,n,t:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
t:=0;
for i:=1 to n do
if (a[i]<0) and (i mod 2=1) then t:=t+a[i];
writeln('Tong cac phan tu am tai vi tri le la: ',t);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var a:array[1..100]of integer;
i,n,dem1,dem2:integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i]);
for i:=1 to n do write(a[i]:4);
writeln;
dem1:=0;
for i:=1 to n do
if (a[i]>a[i-1]) and (a[i]>a[i+1]) then dem1:=dem1+1;
dem2:=0;
for i:=1 to n do
if (a[i]<a[i-1]) and (a[i]<a[i+1]) then dem2:=dem2+1;
writeln(dem1);
writeln(dem2);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var a:array[1..100]of integer;
i,n,t:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
t:=0;
for i:=1 to n do
if (a[i] mod 3=0) and (i mod 2=0) then t:=t+a[i];
writeln('Tong cac so chia het cho 3 o vi tri chan la: ',t);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
#include <bits/stdc++.h>
using namespace std;
long long x,n,i,t1,t2,t3;
int main()
{
cin>>n;
t1=0; t2=0; t3=0;
for (i=1; i<=n; i++)
{
cin>>x;
t1+=x;
if (x%2==0) t2+=x;
else t3+=x;
}
cout<<t1<<" "<<t2<<" "<<t3;
return 0;
}
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var a:array[1..200]of integer;
n,i,k,t,t1:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
write('Nhap k='); readln(k);
t:=0;
for i:=1 to n do
if a[i] mod 2<>0 then t:=t+a[i];
t1:=0;
for i:=1 to n do
if a[i] mod k=0 then t1:=t1+a[i];
writeln('Tong cac phan tu le la: ',t);
writeln('Tong cac phan tu la boi cua ',k,' la: ',t1);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var a:array[1..100]of integer;
i,n,dem,t,tb: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]>0 then
begin
dem:=dem+1;
t:=t+a[i];
end;
writeln('So luong phan tu duong la: ',dem);
writeln('Tong cac phan tu duong la: ',t);
writeln('Trung binh cac phan tu duong la: ',t/dem:4:2);
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long x,n,i,t;
int main()
{
cin>>n;
t=0;
for (i=1; i<=n; i++)
{
cin>>x;
if (x>0) t+=x;
}
cout<<t;
return 0;
}