Eroare de compilare: main.cpp:9:17: error: 'int index' redeclared as different kind of symbol int n,m,i,j,x,y,index,cnt,v[DIM],low[DIM]; ^~~~~ 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:16:10: error: no post-increment operator for type index++; v[nod] = index; low[nod] = index; ^~ main.cpp:16:23: error: cannot resolve overloaded function 'index' based on conversion to type 'int' index++; v[nod] = index; low[nod] = index; ^~~~~ main.cpp:16:41: error: cannot resolve overloaded function 'index' based on conversion to type 'int' index++; v[nod] = index; low[nod] = index; ^~~~~ main.cpp:18:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<L[nod].size(); i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:55:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0; j<ctc[i].size(); j++) ~^~~~~~~~~~~~~~ Non zero exit status: 1