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- #include <iostream>
- using namespace std;
- int rek(int n) {
- if(n == 0) {
- return 1;
- }
- if(n < 10) {
- return 0;
- }
- return rek(n / 100);
- }
- int main() {
- int n;
- cin >> n;
- cout << rek(n) << endl;
- return 0;
- }
- /*
- rek(123456) = rek(1234) = 1
- rek(1234) = rek(12) = 1
- rek(12) = rek(0) = 1
- rek(0) = 1
- **/
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