Compilare: main.cpp: In function 'int main()': main.cpp:60:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for(int i = 0;i < spectacole.size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:62:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for(int j = 0;j < spectacole.size(); ++j) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:68:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for(int i = 0;i < spectacole.size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:87:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | for(int i = 0;i < spectacole.size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~