Compilare: main.cpp: In function 'int main()': main.cpp:52:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<e>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for(i = 0;i < ops.size();i++){ | ~~^~~~~~~~~~~~ main.cpp:48:36: warning: 'ex' may be used uninitialized in this function [-Wmaybe-uninitialized] 48 | fout<<ey - sy + 1<<' '<<ex - sx + 1<<'\n'; | ~~~^~~~ main.cpp:48:18: warning: 'ey' may be used uninitialized in this function [-Wmaybe-uninitialized] 48 | fout<<ey - sy + 1<<' '<<ex - sx + 1<<'\n'; | ~~~^~~~ main.cpp:48:36: warning: 'sx' may be used uninitialized in this function [-Wmaybe-uninitialized] 48 | fout<<ey - sy + 1<<' '<<ex - sx + 1<<'\n'; | ~~~^~~~ main.cpp:48:18: warning: 'sy' may be used uninitialized in this function [-Wmaybe-uninitialized] 48 | fout<<ey - sy + 1<<' '<<ex - sx + 1<<'\n'; | ~~~^~~~