Eroare de compilare: main.cpp:9:11: error: conflicting declaration 'std::ofstream f' ofstream f("lca.out"); ^ main.cpp:8:10: note: previous declaration as 'std::ifstream f' ifstream f("lca.in"); ^ main.cpp: In function 'void precalc()': main.cpp:41:9: error: 'i' was not declared in this scope for(i=2;i<=n;++i) ^ main.cpp: In function 'void lca(int, int)': main.cpp:54:21: error: return-statement with a value, in function returning 'void' [-fpermissive] if(x==y) return x; ^ main.cpp:63:18: error: return-statement with a value, in function returning 'void' [-fpermissive] return a[0][x]; ^ main.cpp: In function 'void solve()': main.cpp:70:9: error: 'o' was not declared in this scope o << lca(x,y) << '\n'; ^ Non zero exit status: 1