Compilare: main.cpp: In function 'int main()': main.cpp:60:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for (i = 1; i <= ctc[imax].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void afiseaza(int)': main.cpp:96:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 96 | for (i = 0; i < l[vf].size(); ++i) | ~~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int)': main.cpp:112:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 112 | for (i = 0; i < l[vf].size(); ++i) | ~~^~~~~~~~~~~~~~ main.cpp: In function 'void dfsgt(int)': main.cpp:126:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 126 | for (i = 0; i < lt[vf].size(); ++i) | ~~^~~~~~~~~~~~~~~