Eroare de compilare: user.cpp:9:19: error: conflicting declaration ‘int g’ int n,m,sol,t,x,y,g,i,j; ^ user.cpp:7:10: error: ‘g’ has a previous declaration as ‘std::ofstream g’ ofstream g("party.out"); ^ user.cpp: In function ‘void dfs(int)’: user.cpp:15:22: error: no match for ‘operator++’ (operand type is ‘std::ofstream {aka std::basic_ofstream<char>}’) niv[nod]=low[nod]=++g; ^ user.cpp:17:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<l[nod].size();i++) { ^