#include <iostream>
using namespace std;
string n;
long long a, b, cnt, x;
bool is_prime(long long a)
{
if(a == 0 || a == 1) return false;
if(a == 2) return true;
if(a % 2 == 0) return false;
for(long long i = 3; i * i <= a; i += 2) if(a % i == 0) return false;
return true;
}
int main()
{
ios_base :: sync_with_stdio();
cin >> n;
if(n[0] == '0')
{
cout << "NIE" << endl;
return 0;
}
for(int i = 0; i < n.length() - 1; ++i)
{
if(n[i + 1] == '0') continue;
cnt = 1;
a = 0;
for(int j = i; j >= 0; --j)
{
x = (long long)((int)(n[j] - 48));
a += (cnt * x);
cnt *= 10;
}
cnt = 1;
b = 0;
for(int j = n.length() - 1; j >= i + 1; --j)
{
x = (long long)((int)(n[j] - 48));
b += (cnt * x);
cnt *= 10;
}
if(is_prime(a) && is_prime(b))
{
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 | #include <iostream> using namespace std; string n; long long a, b, cnt, x; bool is_prime(long long a) { if(a == 0 || a == 1) return false; if(a == 2) return true; if(a % 2 == 0) return false; for(long long i = 3; i * i <= a; i += 2) if(a % i == 0) return false; return true; } int main() { ios_base :: sync_with_stdio(); cin >> n; if(n[0] == '0') { cout << "NIE" << endl; return 0; } for(int i = 0; i < n.length() - 1; ++i) { if(n[i + 1] == '0') continue; cnt = 1; a = 0; for(int j = i; j >= 0; --j) { x = (long long)((int)(n[j] - 48)); a += (cnt * x); cnt *= 10; } cnt = 1; b = 0; for(int j = n.length() - 1; j >= i + 1; --j) { x = (long long)((int)(n[j] - 48)); b += (cnt * x); cnt *= 10; } if(is_prime(a) && is_prime(b)) { cout << "TAK" << endl; return 0; } } cout << "NIE" << endl; return 0; } |
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