Compilare: main.cpp: In function 'int main()': main.cpp:81:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchii>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 81 | while(i < nr.size()) { | ~~^~~~~~~~~~~ main.cpp:83:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchii>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | while(i + 1 < nr.size() && nr[i + 1].cost == nr[i].cost) { | ~~~~~~^~~~~~~~~~~