Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:2:12: error: request for member ‘first’ in ‘s[i]’, which is of non-class type ‘int’ # define x first ^ user.cpp:52:37: note: in expansion of macro ‘x’ for (int i=1;i<=n;++i) fi>>s[i].x,s[i].y=i; ^ user.cpp:3:12: error: request for member ‘second’ in ‘s[i]’, which is of non-class type ‘int’ # define y second ^ user.cpp:52:44: note: in expansion of macro ‘y’ for (int i=1;i<=n;++i) fi>>s[i].x,s[i].y=i; ^ user.cpp:57:16: error: ‘v’ was not declared in this scope while (v[l].x + v[l+1].x < v[i].x) ++l; ^ user.cpp:3:12: error: request for member ‘second’ in ‘s[j]’, which is of non-class type ‘int’ # define y second ^ user.cpp:60:54: note: in expansion of macro ‘y’ for (int j=l;j<=i;++j) printf("%d ",s[j].y); ^ user.cpp:49:9: warning: unused variable ‘t’ [-Wunused-variable] int t,k; ^ user.cpp:48:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("triangles.out","w",stdout); ^