Compilare: main.cpp: In function 'bool Search(int)': main.cpp:40:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<element>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(int i = 0; i < h[r].size(); i ++) | ~~^~~~~~~~~~~~~ main.cpp:44:24: warning: value computed is not used [-Wunused-value] 44 | h[r][i].fr == 1;