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uses crt;
var a:array[1..100]of integer;
i,n,tc,tl,t:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
tc:=0;
tl:=0;
for i:=1 to n do
begin
if a[i] mod 2=0 then tc:=tc+a[i]
else tl:=tl+a[i];
end;
writeln('Tong cac so chan la: ',tc);
writeln('Tong cac so le la: ',tl);
t:=0;
for i:=1 to n do
t:=t+a[i];
writeln('Tong cua day so la: ',t);
readln;
end.
program BaiToanMang;
var
A: array[1..100] of integer;
N, i, demChan, tongLeChia3: integer;
begin
write('Nhap so phan tu cua mang: ');
readln(N);
writeln('Nhap cac phan tu cua mang: ');
for i := 1 to N do
begin
write('a[', i, ']= ');
readln(A[i]);
end;
tongLeChia3 := 0;
for i := 1 to N do
begin
if (A[i] mod 2 = 1) and (A[i] mod 3 = 0) then
begin
tongLeChia3 := tongLeChia3 + A[i];
end;
end;
writeln('Tong cac so le chia het cho 3: ', tongLeChia3);
demChan := 0;
for i := 2 to N do
begin
if (A[i] mod 2 = 0) and (i mod 2 = 1) then
begin
demChan := demChan + 1;
end;
end;
writeln('So phan tu chan o vi tri le: ', demChan);
writeln('Cac so chan chia het cho 5: ');
for i := 1 to N do
begin
if (A[i] mod 2 = 0) and (A[i] mod 5 = 0) then
begin
write(A[i], ' ');
end;
end;
end.
ko bt đúng ko ko dùng pascal nhiều
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 C : array [1 .. 50] of integer;
i, n : integer;
begin
clrscr;
write('Nhap so phan tu : '); readln(n);
write('Nhap day gom ', n ,' so : ');
for i := 1 to n do read(C[i]);
write('Cac gia tri chan : ');
for i := 1 to n do
if C[i] mod 2 = 0 then write(C[i], ' ');
readln
end.
#include <bits/stdc++.h>
using namespace std;
long long a[10000],i,n,t1,t2,dem1,dem2;
int main()
{
cin>>n;
for (i=1; i<=n; i++)
cin>>a[i];
dem1=0;
dem2=0;
t1=0;
t2=0;
for (i=1; i<=n; i++)
{
if (a[i]>0)
{
dem1++;
t1+=a[i];
}
if (a[i]<0)
{
dem2++;
t2+=a[i];
}
}
long long t3=0;
for (i=1; i<=n; i++)
if (i%2==1) t3+=a[i];
long long t4=0;
for (i=1; i<=n; i++)
if (i%2==1 && a[i]%2==0) t4+=a[i];
cout<<t1<<" "<<t2<<endl;
cout<<dem1<<" "<<dem2<<endl;
cout<<t3<<endl;
cout<<t4<<endl;
for (i=1; i<=n; i++)
if (a[i]%3==0) cout<<a[i]<<" ";
return 0;
}
uses crt;
var a:array[1..200]of integer;
i,n,tbc,dem:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
writeln('Cac so duong chan la: ');
for i:=1 to n do
if (a[i] mod 2=0) and (a[i]>0) then write(a[i]:4);
writeln;
tbc:=0;
dem:=0;
for i:=1 to n do
if (-1000<=a[i]) and (a[i]<=1000) then
begin
tbc:=tbc+a[i];
dem:=dem+1;
end;
writeln('Trung binh cong cac phan tu co gia tri trong pham vi tu -1000 den 1000 la: ',tbc/dem:4:2);
readln;
end.
Program HOC24;
var a: array[1..250] of integer;
i,n: integer;
t: longint;
begin
write('Nhap N: '); readln(N);
t:=0;
for i:=1 to n do if i mod 2=1 then t:=t+i;
write('Tong cac phan tu o vi tri le la: ',t);
readln
end.
uses crt;
var a:array[1..250]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 2<>0) and (i mod 2=0) then t:=t+a[i];
writeln(t);
readln;
end.