Borderou de evaluare (job #687538)

Eroare de compilare: main.cpp:14:5: error: ISO C++ forbids declaration of 'operator<' with no type [-fpermissive] 14 | operator<(block v2){ | ^~~~~~~~ main.cpp: In function 'int main()': main.cpp:39:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<block>::size_type' {aka 'unsigned int'} [-Wsign-compare] 39 | for(int i = 0; i < skylines.size(); i++){ | ~~^~~~~~~~~~~~~~~~~ main.cpp:51:29: warning: integer overflow in expression of type 'long int' results in '-2' [-Woverflow] 51 | ll min_h = LONG_MAX + LONG_MAX; | ^ main.cpp:26:21: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 26 | std::freopen("skyline.in" , "r", stdin); | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:27:21: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 27 | std::freopen("skyline.out" , "w", stdout); | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~