Compilare: main.cpp: In function 'int main()': main.cpp:83:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for (int i = 0; i < lr.size(); i++) | ~~^~~~~~~~~~~ main.cpp:89:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 89 | for (int i = 0; i < cr.size(); i++) | ~~^~~~~~~~~~~ main.cpp:104:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 104 | for (int i = 1; i <= lr.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:106:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 106 | for (int j = 1; j <= cr.size(); j++) | ~~^~~~~~~~~~~~ main.cpp:124:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 124 | for (int i = 1; i <= lr.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:126:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 126 | for (int j = 1; j <= cr.size(); j++) | ~~^~~~~~~~~~~~