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   2021-01-11T20:56:27+02:00Pe 11 ianuarie 2021

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   https://raw.githubusercontent.com/TCLaurentiu/pbinfo/main/44.cpp

   #include <iostream> #include <fstream> using namespace std; ifstream f("numar.in"); ofstream o("numar.out"); int main() { int a, b, sum = 0, aux; f >> a >> b; for (int i = a; i <= b; i++) { aux = i; sum = 0; // construirea sumei cifrelor while (aux) { sum += (aux % 10); aux /= 10; } // verificarea primalitatii int j = 2; for (; j < sum / 2 + 1; j++) if (sum % j == 0) break; if (j == sum / 2 + 1) o << i << '\n'; if (sum == 2) o << i << '\n'; } return 0; }

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   #include <iostream> #include <fstream> using namespace std; ifstream f("numar.in"); ofstream o("numar.out"); int main() {     int a, b, sum = 0, aux;     f >> a >> b;     for (int i = a; i <= b; i++)     {           aux = i;         sum = 0;         // construirea sumei cifrelor         while (aux)         {             sum += (aux % 10);             aux /= 10;         }           // verificarea primalitatii         int j = 2;         for (; j < sum / 2 + 1; j++)             if (sum % j == 0)                 break;         if (j == sum / 2 + 1)             o << i << '\n';           if (sum == 2)             o << i << '\n';     }     return 0; }

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