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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.
uses crt;
var a:array[1..100]of integer;
i,n,dem: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]>0) and (i mod 2=1) then inc(dem);
writeln('So phan tu duong o vi tri le la: ',dem);
readln;
end.
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.
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.
#include <bits/stdc++.h>
using namespace std;
int B[100],i,n,t=0,s=1;
int main()
{
cin>>n;
for (int i=1; i<=n; i++) cin>>B[i];
for (int i=1; i<=n; i++)
{
if (i%2==0) s*=A[i];
else t+=A[i];
}
cout<<t<<" "<<s;
}
#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;
}
Bài 1:
#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) and (x%2!=0)) t=t+x;
}
cout<<t;
return 0;
}
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.
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.