/in/foo.cc: In function 'int main()':
/in/foo.cc:94:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0; i<strlen(a_chT); i++)
                  ~^~~~~~~~~~~~~~
/in/foo.cc:96:28: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
     scanf("%d %d",&g_n,&g_K);
                            ^