foo.cc: In function 'int get_hash(int, int)':
foo.cc:44:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int i = 0;i < T[u].size();i++){
               ~~^~~~~~~~~~~~~
foo.cc:57:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(;start < kind[tot].size() && kind[tot][start] == 1;start++);
      ~~~~~~^~~~~~~~~~~~~~~~~~
foo.cc:58:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int i = start + 1;i < kind[tot].size();i++){
                       ~~^~~~~~~~~~~~~~~~~~
foo.cc: In function 'int get_p(int, int)':
foo.cc:72:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int i = 0;i < T[u].size();i++){
               ~~^~~~~~~~~~~~~
foo.cc: In function 'int get_node(int, int, std::vector<int>*)':
foo.cc:106:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int j = 0;j < G[i].size();j++){
               ~~^~~~~~~~~~~~~
foo.cc:119:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int j = 0;j < G[i].size();j++){
               ~~^~~~~~~~~~~~~
foo.cc:128:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for (int j = 0; j < ed[i].size(); ++ j) if (ed[i][j]>0)
                 ~~^~~~~~~~~~~~~~
foo.cc:138:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int j = 0;j < G[i].size();j++) pst[j] = get_num(i , G[i][j]);
               ~~^~~~~~~~~~~~~
foo.cc:139:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int j = 0;j < G[i].size();j++){
               ~~^~~~~~~~~~~~~
foo.cc:140:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int k = j + 1;k < G[i].size();k++){
                   ~~^~~~~~~~~~~~~
foo.cc: In function 'int brout(std::vector<int>*)':
foo.cc:154:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int j = 0;j < G[i].size();j++){
               ~~^~~~~~~~~~~~~
foo.cc:155:24: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
 neigh[i] |= (1<<G[i][j]-1);
foo.cc:157:13: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
 connect[1<<i-1] = 1;
            ~^~
foo.cc:164:11: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
 if((i >> j-1) & 1) mask |= neigh[j];
          ~^~
foo.cc:167:15: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
 if((mask >> j - 1) & 1) {connect[i | (1<<j-1)] = 1;}
             ~~^~~
foo.cc:167:43: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
 if((mask >> j - 1) & 1) {connect[i | (1<<j-1)] = 1;}
                                          ~^~
foo.cc:172:12: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
 if(((i >> j-1) & 1) == 0) continue;
           ~^~
foo.cc:174:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int k = 0;k < G[j].size();k++){
               ~~^~~~~~~~~~~~~
foo.cc:175:15: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
 if((i>>G[j][k]-1) & 1) {T[j].push_back(G[j][k]);}
foo.cc: In function 'void count()':
foo.cc:199:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int j = 0;j < T[i].size();j++) W[i].push_back(T[i][j]);
               ~~^~~~~~~~~~~~~
foo.cc: In function 'void find(int, int)':
foo.cc:220:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int i = 0;i < E[u].size();i++){
               ~~^~~~~~~~~~~~~
foo.cc:228:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int j = 0;j < kind[i].size();j++){
               ~~^~~~~~~~~~~~~~~~
foo.cc:238:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int j = 0;j < E[u].size();j++){
               ~~^~~~~~~~~~~~~
foo.cc:251:8: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 if(siz >= kind[i].size()) dp[u][i] = (1LL * cop[siz][(1<<len) - 1] * C[siz - len][kind[i].size() - len]) % mod;
    ~~~~^~~~~~~~~~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:258:6: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 scanf("%d%d",&n,&kk);
 ~~~~~^~~~~~~~~~~~~~~
foo.cc:273:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 int u , v;scanf("%d%d",&u,&v);
           ~~~~~^~~~~~~~~~~~~~

[Hydro](https://hydro.ac)提供评测服务