Compilare: main.cpp:8:140: warning: built-in function 'ccos' declared as non-function [-Wbuiltin-declaration-mismatch] 8 | int n,m,i,must,mudr,chain,lvl[250005],si[250005],maf[250005],cnt[250005],pos[250005],id[250005],first[250005],val[250005],tata[250005],cer,ccos,sum1,sum2,mma[250005]; | ^~~~ main.cpp: In function 'void dfs(int, int, int)': main.cpp:14:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | for (int i=0;i<v[nod].size();++i) | ~^~~~~~~~~~~~~~ main.cpp: In function 'void split(int, int)': main.cpp:33:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for (int i=0;i<v[nod].size();++i) | ~^~~~~~~~~~~~~~