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  1. #include <iostream>
  2. #include <string>
  3. #include <algorithm>
  4. #include <cctype>
  5.  
  6. using namespace std;
  7.  
  8.  
  9. bool A(const string& e) {
  10.     size_t p1 = e.find('@');
  11.     if (p1 == string::npos || e.rfind('@') != p1) {
  12.         return false;
  13.     }
  14.     if (p1 == 0 || p1 == e.length() - 1) {
  15.         return false;
  16.     }
  17.  
  18.     size_t p2 = e.find('.', p1);
  19.     if (p2 == string::npos || p2 == p1 + 1 || p2 == e.length() - 1) {
  20.         return false;
  21.     }
  22.  
  23.     for (char c : e) {
  24.         if (c != '@' && c != '.') {
  25.             if (!islower(c)) {
  26.                 return false;
  27.             }
  28.         }
  29.     }
  30.     return true;
  31. }
  32.  
  33.  
  34. bool B(const string& p) {
  35.     if (p.length() < 8) {
  36.         return false;
  37.     }
  38.  
  39.     bool l = false; 
  40.     bool u = false; 
  41.     bool d = false; 
  42.     bool s = false; 
  43.  
  44.     const string y = "!@#%&*_-.";
  45.  
  46.     for (char c : p) {
  47.         if (islower(c)) {
  48.             l = true;
  49.         } else if (isupper(c)) {
  50.             u = true;
  51.         } else if (isdigit(c)) {
  52.             d = true;
  53.         } else if (y.find(c) != string::npos) {
  54.             s = true;
  55.         }
  56.  
  57.         if (l && u && d && s) {
  58.             return true;
  59.         }
  60.     }
  61.  
  62.     return l && u && d && s;
  63. }
  64.  
  65. int main() {
  66.     string e, p;
  67.  
  68.     if (!(cin >> e >> p)) {
  69.         return 0; 
  70.     }
  71.  
  72.     if (A(e) && B(p)) {
  73.         cout << "Valid" << endl;
  74.     } else {
  75.         cout << "InValid" << endl;
  76.     }
  77.  
  78.     return 0;
  79. }
Success #stdin #stdout 0.01s 5328KB
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https://ideone.com/sp6qsN
language:
C++ (gcc 8.3)
created:
19 hours ago
visibility:
public

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