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uses crt;
var f,g:text;
n,i,m,k,j:integer;
a:array[1..10000] of integer;
const fi='BAI2.INP'; fo='BAI2.OUT';
begin
assign(f,fi); reset(f);
assign(g,fo); rewrite(g);
readln(f,n);
for i:=1 to n do
readln(f,a[i]);
for i:=1 to n do
begin
m:=a[i];
for j:=i+1 to n do
if odd(m+a[j])=false then k:=k+1;
end;
write(g,k);
close(f);
close(g);
end.
Var a:array[1..100] of integer;
i,n:integer;
s:longint;
Begin
Write('n = ');readln(n);
For i:=1 to n do
Begin
Write('Nhap phan tu thu ',i,' = ');readln(a[i]);
s:=s+a[i];
End;
Write('Cac phan tu vua nhap la ');
For i:=1 to n do
Write(a[i]:8);
Writeln;
Write('Tong cua chung la ',s);
Readln
End.
uses crt;
var a:array[1..10000]of integer;
i,n,kt,j:integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i]);
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 kt:=1;
if kt=0 then write(a[i]:4);
end;
readln;
end.
#include <iostream>
#include <cmath>
using namespace std;
bool isPrime(int number) {
if (number < 2) {
return false;
}
for (int i = 2; i <= sqrt(number); i++) {
if (number % i == 0) {
return false;
}
}
return true;
}
int main() {
int N;
cin >> N;
int count = 0;
for (int i = 0; i < N; i++) {
int num;
cin >> num;
if (isPrime(num)) {
count++;
}
}
cout << "Số lượng số nguyên tố trong dãy là: " << count << endl;
return 0;
}
uses crt;
var a:array[1..100]of integer;
i,n,max,dem:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
for i:=1 to n do
write(a[i]:4);
writeln;
max:=a[1];
for i:=1 to n do
if max<a[i] then max:=a[i];
writeln('So lon nhat la: ',max);
write('Vi tri cua so lon nhat la: ');
for i:=1 to n do
if max=a[i] then write(i:4);
writeln;
dem:=0;
for i:=1 to n do
if max=a[i] then inc(dem);
writeln('So luong phan tu lon nhat trong day la: ',dem);
readln;
end.
uses crt;
var a:array[1..100000000] of int64;
n,i,d,max:longint;
begin
clrscr;
repeat
write('Nhap so luong phan tu: '); readln(n);
if (n<=0) and (n>688886) then writeln('NHAP LAI!');
until (n>0) and (n<=688886);
for i:=1 to n do
begin
write('Nhap phan tu thu ',i,': '); readln(a[i]);
end;
write('Day so vua nhap: ');
for i:=1 to n do write(a[i],' ');
max:=a[1];
for i:=1 to n do if a[i]>max then max:=a[i];
writeln;
writeln('So lon nhat: ',max);
write('Vi tri cua cac so lon nhat: ');
for i:=1 to n do if a[i]=max then begin write(i,' '); inc(d) end;
writeln;
writeln('So luong so lon nhat: ',d);
readln;
end.