#include <iostream> #include <cmath> using namespace std; long long int a, b, c = 10; string result = "NIE"; bool is_prime(int a) { for(int i = 2; i <= sqrt(a); ++i) { if(a % i == 0) { return false; } } return true; } int main() { ios_base::sync_with_stdio(0); cin >> a; while(a / c > 0) { if(is_prime(a / c) && a % c > c / 10 && is_prime(a % c)) { result = "TAK"; break; } c *= 10; } cout << result << endl; return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | #include <iostream> #include <cmath> using namespace std; long long int a, b, c = 10; string result = "NIE"; bool is_prime(int a) { for(int i = 2; i <= sqrt(a); ++i) { if(a % i == 0) { return false; } } return true; } int main() { ios_base::sync_with_stdio(0); cin >> a; while(a / c > 0) { if(is_prime(a / c) && a % c > c / 10 && is_prime(a % c)) { result = "TAK"; break; } c *= 10; } cout << result << endl; return 0; } |