Compilare: main.cpp: In function 'void dell(line)': main.cpp:45:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<line>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(int i=0;i<S.size();i++) | ~^~~~~~~~~ main.cpp:47:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<line>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for (;i+1<S.size();i++) S[i] = S[i+1]; | ~~~^~~~~~~~~ main.cpp: In function 'int UPline(int, int)': main.cpp:60:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<line>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for (;p<S.size();p<<=1); | ~^~~~~~~~~ main.cpp:62:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<line>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | if (st+p<S.size() && abs(getY(S[st+p],x) - y)<=eps) return 1; | ~~~~^~~~~~~~~ main.cpp:63:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<line>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | if (st+p<S.size() && getY(S[st+p],x) > y) st+=p; | ~~~~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:85:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for (int j=0;j<M[P[i].x].size();j++) | ~^~~~~~~~~~~~~~~~~ main.cpp:93:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<event>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 93 | for (int j=0;j<E[i].size();j++) | ~^~~~~~~~~~~~ main.cpp:97:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 97 | for (int j=0;j<M[i].size();j++) if (M[i][j]!=-1 && UPline(i,M[i][j])%2) nr++; | ~^~~~~~~~~~~~