#include <iostream> #include <sstream> using namespace std; typedef long long ll; string s; bool is_prime(ll x) { if (x < 2) return false; for(ll i = 2; i*i <= x; i++) { if (x%i == 0) return false; } return true; } bool ok(int i) { string s1 = s.substr(0,i+1); string s2 = s.substr(i+1); if (s1[0] == '0' || s2[0] == '0') return false; stringstream ss1(s1), ss2(s2); ll a,b; ss1 >> a, ss2 >> b; return is_prime(a) && is_prime(b); } int main() { ios_base::sync_with_stdio(false); cin >> s; if (s.length() < 2) cout << "NIE" << endl; for(int i = 0; i < s.length()-1; i++) { if (ok(i)) { cout << "TAK" << endl; return 0; } } cout << "NIE" << 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 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | #include <iostream> #include <sstream> using namespace std; typedef long long ll; string s; bool is_prime(ll x) { if (x < 2) return false; for(ll i = 2; i*i <= x; i++) { if (x%i == 0) return false; } return true; } bool ok(int i) { string s1 = s.substr(0,i+1); string s2 = s.substr(i+1); if (s1[0] == '0' || s2[0] == '0') return false; stringstream ss1(s1), ss2(s2); ll a,b; ss1 >> a, ss2 >> b; return is_prime(a) && is_prime(b); } int main() { ios_base::sync_with_stdio(false); cin >> s; if (s.length() < 2) cout << "NIE" << endl; for(int i = 0; i < s.length()-1; i++) { if (ok(i)) { cout << "TAK" << endl; return 0; } } cout << "NIE" << endl; return 0; } |