Compilare: main.cpp: In function 'void Sort(std::vector<std::pair<int, int> >&)': main.cpp:10:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 10 | for(int i = 0; i < v.size()-1; i++){ | ~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:44:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for(int i = 1; i < date.size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp:21:11: warning: unused variable 'x' [-Wunused-variable] 21 | int n,x,y,aux; | ^ main.cpp:21:13: warning: unused variable 'y' [-Wunused-variable] 21 | int n,x,y,aux; | ^