View Compilation Error

0_0_39162840_13032.cpp: In function 'int main()':
0_0_39162840_13032.cpp:11:28: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
   11 |                 len=strlen(s);
      |                            ^
      |                            |
      |                            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_39162840_13032.cpp:12:34: error: expected ')' before ';' token
   12 |                 for(i=0;j=0;i<len;i++)
      |                    ~             ^
      |                                  )
0_0_39162840_13032.cpp:12:38: error: expected ';' before ')' token
   12 |                 for(i=0;j=0;i<len;i++)
      |                                      ^
      |                                      ;