Compilare: main.cpp: In function 'long long int getMinDist(int, int)': main.cpp:48:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | while(top < left.size()) { | ~~~~^~~~~~~~~~~~~ main.cpp:55:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | if (top == left.size()) { | ~~~~^~~~~~~~~~~~~~ main.cpp:58:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for (int pos = top; pos < left.size(); pos++) { | ~~~~^~~~~~~~~~~~~