Compilare: main.cpp: In function 'void print_output(std::pair<long unsigned int, long unsigned int>)': main.cpp:37:19: warning: comparison of integer expressions of different signedness: 'long unsigned int' and 'int' [-Wsign-compare] 37 | if (res.first == -1 && res.second == -1) { | ~~~~~~~~~~^~~~~ main.cpp:37:39: warning: comparison of integer expressions of different signedness: 'long unsigned int' and 'int' [-Wsign-compare] 37 | if (res.first == -1 && res.second == -1) { | ~~~~~~~~~~~^~~~~