Compilare: main.cpp: In function 'bool caut(int)': main.cpp:13:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | while(i < h[cod].size() && h[cod][i] != x) | ~~^~~~~~~~~~~~~~~ main.cpp:15:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | return i < h[cod].size(); | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void adaug(int)': main.cpp:21:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | while(i < h[cod].size() && h[cod][i] != x) | ~~^~~~~~~~~~~~~~~ main.cpp:23:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | if(i == h[cod].size()) | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void sterg(int)': main.cpp:30:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | while(i < h[cod].size() && h[cod][i] != x) | ~~^~~~~~~~~~~~~~~ main.cpp:32:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | if(i < h[cod].size()) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:37:19: warning: unused variable 'ras' [-Wunused-variable] 37 | int n, op, x, ras; | ^~~