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- #include <iostream>
- #include <fstream>
- #include <cstring>
- using namespace std;
- // x - numarul de zero-uri in baza 2 a numarului n
- // y - numarul de unu-ri in baza 2 a numarului n
- void baza(unsigned int n, unsigned int& x, unsigned int& y) {
- x = y = 0;
- while(n) {
- if(n%2) {
- ++y;
- }
- else {
- ++x;
- }
- n /= 2;
- }
- }
- int main() {
- ifstream fin("atestat.in");
- ofstream fout("atestat.out");
- // exista = 0 -> nu exista numere rotunde
- // exista = 1 -> exista numere rotunde
- unsigned int x, exista = 0;
- // cat timp exista numere in fisier le citesc
- while(fin >> x) {
- unsigned int zero, unu;
- baza(x, zero, unu);
- // daca numarul este rotund il afisez
- if(zero == unu) {
- fout << x << " ";
- exista = 1;
- }
- }
- // raportez daca nu exista nici un numar rotund
- if(!exista) {
- fout << "Nu exista!";
- }
- }
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