#include <bits/stdc++.h>
using namespace std;
bool isPrime(long long n) {
if (n <= 2) {
return n == 2;
}
if (n % 2 == 0) {
return false;
}
for (int i = 3; i*i <= n; i += 2) {
if (n % i == 0) {
return false;
}
}
return true;
}
int main() {
string n;
cin >> n;
for (int i = 0; i < n.size(); i++) {
string left = n.substr(0, i), right = n.substr(i);
if (left.empty() || right.empty() || right[0] == '0') {
continue;
}
stringstream leftStream(left), rightStream(right);
long long leftNum, rightNum;
leftStream >> leftNum;
rightStream >> rightNum;
if (isPrime(leftNum) && isPrime(rightNum)) {
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 | #include <bits/stdc++.h> using namespace std; bool isPrime(long long n) { if (n <= 2) { return n == 2; } if (n % 2 == 0) { return false; } for (int i = 3; i*i <= n; i += 2) { if (n % i == 0) { return false; } } return true; } int main() { string n; cin >> n; for (int i = 0; i < n.size(); i++) { string left = n.substr(0, i), right = n.substr(i); if (left.empty() || right.empty() || right[0] == '0') { continue; } stringstream leftStream(left), rightStream(right); long long leftNum, rightNum; leftStream >> leftNum; rightStream >> rightNum; if (isPrime(leftNum) && isPrime(rightNum)) { cout << "TAK" << endl; return 0; } } cout << "NIE" << endl; return 0; } |
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