Compilare: main.cpp: In function 'int main()': main.cpp:90:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 90 | if(i + 1 > O.size()) | ~~~~~~^~~~~~~~~~ main.cpp:94:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 94 | if(i + 2 > I.size()) | ~~~~~~^~~~~~~~~~