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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.   int a = 12;
  6.   cin >> a;
  7.   int i = 2, este_prim = 1;
  8.   while (i < a) { // Parcurgem numerele de la 2 la a-1
  9.     if (a % i == 0) { // Daca a se divide la i
  10.       este_prim = 0; // Atunci a nu este prim
  11.     }
  12.     ++i;
  13.   }
  14.   // Numarul 1 nu e prim prin conventie, desi nu are
  15.   // niciun divizor intre 1 si el insusi
  16.   if (a == 1) {
  17.     este_prim = 0;
  18.   }
  19.   int ogl = 0;
  20.   while (a != 0) {
  21.   	ogl = ogl * 10 + a % 10;
  22.   	a = a / 10;
  23.   }
  24.   int i1 = 2, este_prim1 = 1;
  25.   while (i1 < ogl) {
  26.   	if (ogl % i1 == 0) {
  27.   		este_prim == 0;
  28.   	}
  29.   	++i1;
  30.   }
  31.   if (ogl == 1) {
  32.   	este_prim1 == 0;
  33.   }
  34.   if (este_prim == 1 && este_prim1 == 1) {
  35.   	cout << " DA ";
  36.   } else {
  37.   	cout << " NU ";
  38.   }
  39.   return 0;
  40. }
Success #stdin #stdout 0.01s 5340KB
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 NU
https://ideone.com/Q4cX6i
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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