Compilare: main.cpp: In function 'void solve()': main.cpp:93:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<event>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 93 | while(i < events.size() && events[i].x1 <= j) | ~~^~~~~~~~~~~~~~~ main.cpp:109:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<event>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 109 | while(i < events.size() && events[i].x1 >= j) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void solve2()': main.cpp:130:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<event>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 130 | while(i < events.size() && events[i].y1 <= j) | ~~^~~~~~~~~~~~~~~ main.cpp:146:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<event>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 146 | while(i < events.size() && events[i].y1 >= j) | ~~^~~~~~~~~~~~~~~