Compilare: main.cpp: In function 'int main()': main.cpp:109:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 109 | for(int i = 0; i<loc.size(); i++) | ~^~~~~~~~~~~ main.cpp:116:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 116 | for(int i = 0; i<loc.size(); i++) | ~^~~~~~~~~~~ main.cpp:117:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 117 | for(int j = i+1; j<loc.size(); j++) | ~^~~~~~~~~~~