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0_0_39051174_12676.cpp: In function 'int main()':
0_0_39051174_12676.cpp:29:30: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
   29 |                 int l=strlen(a);
      |                              ^
      |                              |
      |                              std::string {aka std::__cxx11::basic_string<char>}
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/cstring:42,
                 from .\stdc++.h:121:
gcc-13.1.0/x86_64-w64-mingw32/include/string.h:64:37: note:   initializing argument 1 of 'size_t strlen(const char*)'
   64 |   size_t __cdecl strlen(const char *_Str);
      |                         ~~~~~~~~~~~~^~~~
0_0_39051174_12676.cpp:33:30: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
   33 |                 int l=strlen(a);
      |                              ^
      |                              |
      |                              std::string {aka std::__cxx11::basic_string<char>}
gcc-13.1.0/x86_64-w64-mingw32/include/string.h:64:37: note:   initializing argument 1 of 'size_t strlen(const char*)'
   64 |   size_t __cdecl strlen(const char *_Str);
      |                         ~~~~~~~~~~~~^~~~