Eroare de compilare: main.cpp:12:35: error: 'int index' redeclared as different kind of entity 12 | int idx[100005], lowlink[100005], index; | ^~~~~ In file included from /usr/include/string.h:432, from /usr/include/c++/10/cstring:42, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:48, from main.cpp:1: /usr/include/strings.h:61:1: note: previous declaration 'const char* index(const char*, int)' 61 | index (const char *__s, int __c) __THROW | ^~~~~ main.cpp: In function 'void tarjan(int)': main.cpp:19:29: error: no pre-increment operator for type 19 | idx[n] = lowlink[n] = ++index; | ^~~~~ main.cpp: In function 'int main()': main.cpp:55:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for (int i = 0; i < sol.size(); i++) { | ~~^~~~~~~~~~~~ main.cpp:56:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for (int j = 0; j < sol[i].size(); j++) | ~~^~~~~~~~~~~~~~~ Non zero exit status: 1