Compilare: main.cpp: In function 'void printStacks()': main.cpp:28:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Stack>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for(int i = 0; i < aux.size(); i ++){ | ~~^~~~~~~~~~~~ main.cpp: In function 'void addElement(int)': main.cpp:41:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Stack>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for(int i = 0; i < stacks.size(); i ++){ | ~~^~~~~~~~~~~~~~~ main.cpp:43:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Stack>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | if(stacks[i].v.top() > x && (i == stacks.size() - 1 || stacks[i + 1].v.top() < x)){ | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:48:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Stack>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | while(j < stacks.size() - 1 && aux.v.top() < stacks[j + 1].v.top()){ | ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:84:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Move>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 84 | for(int i = 0; i < r.size(); i ++) | ~~^~~~~~~~~~ main.cpp:66:10: warning: unused variable 'x' [-Wunused-variable] 66 | int n, x; | ^