Compilare: main.cpp: In function 'std::vector<int> make_vector(int, int, int)': main.cpp:82:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | for(int i = 0; i < a1.size(); i++) | ~~^~~~~~~~~~~ main.cpp:86:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 86 | for(int i = 1; i < a2.size(); i++) | ~~^~~~~~~~~~~ main.cpp: In function 'bool apare(std::vector<int>, int)': main.cpp:109:22: 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 < v.size(); i++) | ~~^~~~~~~~~~ main.cpp: In function 'bool ok(std::vector<std::vector<int> >, int)': main.cpp:122:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 122 | for(int i = 0; i < v.size(); i++) | ~~^~~~~~~~~~ main.cpp:129:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 129 | return (cnt == v.size()); | ~~~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:187:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 187 | for(int i = 0; i < t.size(); i++) | ~~^~~~~~~~~~ main.cpp:199:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 199 | for(int i = 0; i < points.size(); i++) | ~~^~~~~~~~~~~~~~~