/in/foo.cc: In function 'int Indexset(std::__cxx11::string, int*)':
/in/foo.cc:27:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<s.length();i++)
              ~^~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:54:76: warning: unused variable 'j' [-Wunused-variable]
  int a[100000]={0},b[10000]={0}/*这个数组用于存储十进制答案*/,j=1,m=1,ci[10000]={0};
                                                                            ^