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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. bool esPrimo(int n) {
  5.     if(n == 1)
  6.         return false;
  7.     if(n == 2)
  8.         return true;
  9.     if(n % 2 == 0)
  10.         return false;
  11.     for(int i = 3; i * i <= n; i += 2) {
  12.         if(n % i == 0)
  13.             return false;
  14.     }
  15.     return true;
  16. }
  17.  
  18. int main(){
  19.     //verificar si un numero es primo
  20.     int n;
  21.     cin >> n;
  22.     if(esPrimo(n))
  23.         cout << "Es Primo" << endl;
  24.     else
  25.         cout << "No es Primo" << endl;
  26.     return 0;
  27. }
  28.  
Success #stdin #stdout 0.01s 5320KB
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Standard input is empty
stdout
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No es Primo
https://ideone.com/VD4TGE
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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