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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. const int TEN = 10;
  5.  
  6. int main() {
  7.     int a;
  8.     cin >> a;
  9.     int copyA = a;
  10.     int reverseA = 0;
  11.     while (a) {
  12.         reverseA = reverseA * TEN + a % TEN;
  13.         a /= TEN;
  14.     }
  15.     int divizor = 2, estePrim = 1;
  16.     while (divizor < copyA) {
  17.         if (copyA % divizor == 0) {
  18.             estePrim = 0;
  19.         }
  20.         ++divizor;
  21.     }
  22.     if (copyA == 1) {
  23.         estePrim = 0;
  24.     }
  25.     int divizorReverseA = 2, estePrimReverseA = 1;
  26.     while (divizorReverseA < reverseA) {
  27.         if (reverseA % divizorReverseA == 0) {
  28.             estePrimReverseA = 0;
  29.         }
  30.         ++divizorReverseA;
  31.     }
  32.     if (reverseA == 1) {
  33.         estePrimReverseA = 0;
  34.     }
  35.     if ((estePrim == 1) && (estePrimReverseA == 1)) {
  36.         cout << "DA" << endl;
  37.     } else {
  38.         cout << "NU" << endl;
  39.     }
  40.     return 0;
  41. }
Success #stdin #stdout 0s 5272KB
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Standard input is empty
stdout
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NU
https://ideone.com/braVTW
language:
C++ (gcc 8.3)
created:
81 days ago
visibility:
public

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