/in/foo.cc: In function 'int main()':
/in/foo.cc:105:24: warning: format '%d' expects argument of type 'int', but argument 2 has type 'LL {aka long long int}' [-Wformat=]
  printf("%I64d\n", tans);
                        ^
/in/foo.cc:74:13: warning: 'mi' may be used uninitialized in this function [-Wmaybe-uninitialized]
      ++lv[mi]; tans += (LL) mm; ++cw;
        ~~~~~^