Compilare: main.cpp: In function 'int fnd(int)': main.cpp:13:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for(int j = le; j<v.size(); j++) if(v[j] == x) return j; | ~^~~~~~~~~ main.cpp:14:1: warning: control reaches end of non-void function [-Wreturn-type] 14 | } | ^