Compilare: main.cpp: In function 'int main()': main.cpp:150:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 150 | while (poz < unde1.size() and unde1[poz] == aux) | ~~~~^~~~~~~~~~~~~~ main.cpp:163:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 163 | while (p2 < unde2.size() and ups[unde2[p2].first][unde2[p2].second] >= INT_MAX) | ~~~^~~~~~~~~~~~~~ main.cpp:173:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 173 | while (poz < unde2.size() and unde2[poz] == aux) | ~~~~^~~~~~~~~~~~~~ main.cpp:176:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 176 | if (poz < unde2.size()) | ~~~~^~~~~~~~~~~~~~