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  1.     #include <iostream>
  2.     #include <string>
  3.     #include <algorithm>
  4.     using namespace std;
  5.  
  6.     struct Friend {
  7.     	string first_name;
  8.     	string last_name;
  9.     	string phone;
  10.     };
  11.  
  12.     bool RemoveByName (vector<Friend>& black_book, const string& name) {
  13.         vector<Friend>::iterator removed_it = remove_if(black_book.begin(), black_book.end(), [&name](const Friend& f){return f.first_name == name;});
  14.         if (removed_it == black_book.end())
  15.             return false;
  16.         black_book.erase(removed_it, black_book.end());
  17.         return true;
  18.     }
  19.  
  20.     int main() {
  21.         vector <Friend> black_book {
  22.             Friend {"John", "Nash", "4155555555"},
  23.             Friend {"Homer", "Simpson", "2064375555"}
  24.         };
  25.         if(RemoveByName(black_book, "John")) {
  26.         	cout << "removed" << endl;
  27.         } else {
  28.         	cout << "not found" << endl;
  29.         }
  30.         if(RemoveByName(black_book, "Tom")) {
  31.         	cout << "removed" << endl;
  32.         } else {
  33.         	cout << "not found" << endl;
  34.         }
  35.         for(int i = 0; i < black_book.size(); ++i) {
  36.         	Friend& f = black_book.at(i);
  37.         	cout << f.first_name << " " << f.last_name << " " << f.phone << endl;
  38.         }
  39.     	return 0;
  40.     }
  41.  
Success #stdin #stdout 0s 3464KB
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stdin
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Standard input is empty
stdout
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removed
not found
Homer Simpson 2064375555
https://ideone.com/R5MK5O
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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