Eroare de compilare: main.cpp:9:44: error: 'int index' redeclared as different kind of symbol int noduri, muchii, componente_tari, a, b, index = 1, ids[nmax]; ^~~~~ In file included from /usr/include/c++/6/cstring:42:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:48, from main.cpp:1: /usr/include/string.h:477:1: note: previous declaration 'const char* index(const char*, int)' index (const char *__s, int __c) __THROW ^~~~~ main.cpp: In function 'void dfs(int)': main.cpp:20:17: error: cannot resolve overloaded function 'index' based on conversion to type 'int' ids[node] = index; ^~~~~ main.cpp:21:20: error: cannot resolve overloaded function 'index' based on conversion to type 'int' lowkey[node] = index; ^~~~~ main.cpp:22:7: error: no pre-increment operator for type ++index; ^~~~~ main.cpp:23:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < mat[node].size(); ++i) ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:68:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < componente[i].size(); ++j) ~~^~~~~~~~~~~~~~~~~~~~~~ Non zero exit status: 1