/in/foo.cc: In function 'int main()':
/in/foo.cc:12:28: warning: format '%c' expects argument of type 'char*', but argument 2 has type 'std::__cxx11::string* {aka std::__cxx11::basic_string<char>*}' [-Wformat=]
   if(!(scanf("%c",&table[i])))
                            ^
/in/foo.cc:22:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(m=0;m<table[j].length()/2;m++)
            ^
/in/foo.cc:26:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(m*2!=table[j].length())
         ^