Compilare: main.cpp: In function 'int find(int, int)': main.cpp:15:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | for(int i = 0; i<v[x].size(); i++) | ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:71:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(int i = 0; i<ans.size() - 1; i++) | ~^~~~~~~~~~~~~~~ main.cpp: In function 'int find(int, int)': main.cpp:22:1: warning: control reaches end of non-void function [-Wreturn-type] 22 | } | ^