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View Compilation Error

0_0_38639505_23942.cpp:7:13: error: variable or field 'insert' declared void
 void insert(string s)
             ^~~~~~
0_0_38639505_23942.cpp:7:13: error: 'string' was not declared in this scope
0_0_38639505_23942.cpp:7:13: note: suggested alternative:
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iosfwd:39,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38639505_23942.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stringfwd.h:74:33: note:   'std::__cxx11::string'
   typedef basic_string<char>    string;
                                 ^~~~~~
0_0_38639505_23942.cpp:21:10: error: 'string' was not declared in this scope
 int find(string s)
          ^~~~~~
0_0_38639505_23942.cpp:21:10: note: suggested alternative:
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iosfwd:39,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38639505_23942.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stringfwd.h:74:33: note:   'std::__cxx11::string'
   typedef basic_string<char>    string;
                                 ^~~~~~
0_0_38639505_23942.cpp: In function 'int main()':
0_0_38639505_23942.cpp:33:2: error: 'string' was not declared in this scope
  string str;
  ^~~~~~
0_0_38639505_23942.cpp:33:2: note: suggested alternative:
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iosfwd:39,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38639505_23942.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/stringfwd.h:74:33: note:   'std::__cxx11::string'
   typedef basic_string<char>    string;
                                 ^~~~~~
0_0_38639505_23942.cpp:34:17: error: 'cin' was not declared in this scope
  while (getline(cin,str))
                 ^~~
0_0_38639505_23942.cpp:34:17: note: suggested alternative:
In file included from 0_0_38639505_23942.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^~~
0_0_38639505_23942.cpp:34:21: error: 'str' was not declared in this scope
  while (getline(cin,str))
                     ^~~
0_0_38639505_23942.cpp:34:21: note: suggested alternative: 'std'
  while (getline(cin,str))
                     ^~~
                     std
0_0_38639505_23942.cpp:34:9: error: 'getline' was not declared in this scope
  while (getline(cin,str))
         ^~~~~~~
0_0_38639505_23942.cpp:34:9: note: suggested alternative:
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/string:52,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/locale_classes.h:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/ios_base.h:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:42,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38639505_23942.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/basic_string.h:6382:5: note:   'std::getline'
     getline(basic_istream<_CharT, _Traits>&& __is,
     ^~~~~~~
0_0_38639505_23942.cpp:37:3: error: 'insert' was not declared in this scope
   insert(str);
   ^~~~~~
0_0_38639505_23942.cpp:37:3: note: suggested alternative: 'qsort'
   insert(str);
   ^~~~~~
   qsort
0_0_38639505_23942.cpp:39:8: error: expected ';' before 'substr'
  string substr;
        ^~~~~~~
        ;
0_0_38639505_23942.cpp:40:17: error: 'cin' was not declared in this scope
  while (getline(cin, substr))
                 ^~~
0_0_38639505_23942.cpp:40:17: note: suggested alternative:
In file included from 0_0_38639505_23942.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^~~
0_0_38639505_23942.cpp:40:22: error: 'substr' was not declared in this scope
  while (getline(cin, substr))
                      ^~~~~~
0_0_38639505_23942.cpp:40:22: note: suggested alternative: 'wcsstr'
  while (getline(cin, substr))
                      ^~~~~~
                      wcsstr
0_0_38639505_23942.cpp:40:9: error: 'getline' was not declared in this scope
  while (getline(cin, substr))
         ^~~~~~~
0_0_38639505_23942.cpp:40:9: note: suggested alternative:
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/string:52,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/locale_classes.h:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/ios_base.h:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:42,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38639505_23942.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/basic_string.h:6382:5: note:   'std::getline'
     getline(basic_istream<_CharT, _Traits>&& __is,
     ^~~~~~~
0_0_38639505_23942.cpp:43:14: error: 'find' cannot be used as a function
   find(substr);
              ^
0_0_38639505_23942.cpp:44:3: error: 'cout' was not declared in this scope
   cout << find(substr);
   ^~~~
0_0_38639505_23942.cpp:44:3: note: suggested alternative:
In file included from 0_0_38639505_23942.cpp:1:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^~~~
0_0_38639505_23942.cpp:44:22: error: 'find' cannot be used as a function
   cout << find(substr);
                      ^


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