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  1. #include<iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  6.  
  7.     int n, k;
  8.     cin >> n >> k;
  9.     int count = 0;  
  10.     for (int i = 1; i <= n; i++) {
  11.         if (n % i == 0) {
  12.             count++;  
  13.             if (count == k) {
  14.                 cout << i << "\n";  
  15.                 return 0;  
  16.             }
  17.         }
  18.     }
  19.     cout << -1 << "\n"; 
  20.     return 0;
  21. }
  22.  
Success #stdin #stdout 0s 5284KB
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stdin
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Standard input is empty
stdout
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-1
https://ideone.com/5HoqCv
language:
C++ (gcc 8.3)
created:
86 days ago
visibility:
public

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