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  1. #include <iostream>
  2. #include <fstream>
  3. #include <vector>
  4. using namespace std;
  5.  
  6. vector<size_t> nTxtToVec(string);
  7.  
  8. int main() {
  9.     vector<size_t> allP = nTxtToVec("primes.txt");
  10.  
  11.     for (size_t i : allP)   // test all integers inside vector
  12.         cout << i << ' ';
  13.  
  14.     cout << "\n\nPress any key to return...";
  15.     cin.clear();
  16.     cin.ignore(10000, '\n');
  17. }
  18.  
  19. vector<size_t> nTxtToVec(string fin) {
  20.     vector<size_t> v;
  21.     size_t n = NULL;
  22.     char c;
  23.  
  24.     fstream is;
  25.     is.open(fin, ios::in);
  26.     while (!is.eof()) {
  27.         is.get(c);
  28.         while (c >= '0' && c <= '9') {
  29.             if (n == NULL)
  30.                 n = c - '0';
  31.             else
  32.                 n = (n * 10) + (c - '0');
  33.             is.get(c);
  34.         }
  35.         if (n != NULL) {
  36.             v.push_back(n);
  37.             n = NULL;
  38.         }
  39.     }
  40.     is.close();
  41.     return v;
  42. }
Time limit exceeded #stdin #stdout 5s 3272KB
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https://ideone.com/c7C4tf
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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