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  1.  
  2.  
  3. #include<iostream>
  4. using namespace std;
  5. int main() {
  6.     int n;
  7.     //setlocale(LC_ALL, "Rus");
  8.     cin >> n;
  9.     if (n%2 == 0) cout << "наиб. делитель " << n/2 << endl;
  10.     else 
  11.     {
  12.     	int i;
  13.         for(i = 3; i*i <= n; ++i)
  14.             if (n%i == 0) break;
  15.         if (i*i <= n) cout << "наиб. делитель " << n/i << endl;
  16.         else cout << "число простое \n";
  17.     }
  18. }
  19.  
  20.  
Success #stdin #stdout 0.01s 5276KB
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stdin
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2142972483
stdout
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наиб. делитель 714324161
https://ideone.com/4f1bB9
language:
C++14 (gcc 8.3)
created:
5 days ago
visibility:
public

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