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- #include <iostream>
- using namespace std;
- bool czy_pierwsza(int n)
- {
- if(n < 2)
- return false;
- for(int i = 2; i*i <= n; ++i)
- if(n % i == 0)
- return false;
- return true;
- }
- int main()
- {
- cout << czy_pierwsza(1237) << endl;
- return 0;
- }
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