Compilare: user.cpp: In function ‘bool intersect(int, int, int&)’: user.cpp:63:27: warning: narrowing conversion of ‘from[j].Point::x’ from ‘int’ to ‘double’ inside { } [-Wnarrowing] inter[ninter] = {from[j].x, from[j].y}; ^ user.cpp:63:27: warning: narrowing conversion of ‘from[j].Point::y’ from ‘int’ to ‘double’ inside { } [-Wnarrowing] user.cpp:71:27: warning: narrowing conversion of ‘to[j].Point::x’ from ‘int’ to ‘double’ inside { } [-Wnarrowing] inter[ninter] = {to[j].x, to[j].y}; ^ user.cpp:71:27: warning: narrowing conversion of ‘to[j].Point::y’ from ‘int’ to ‘double’ inside { } [-Wnarrowing] user.cpp:79:27: warning: narrowing conversion of ‘from[i].Point::x’ from ‘int’ to ‘double’ inside { } [-Wnarrowing] inter[ninter] = {from[i].x, from[i].y}; ^ user.cpp:79:27: warning: narrowing conversion of ‘from[i].Point::y’ from ‘int’ to ‘double’ inside { } [-Wnarrowing] user.cpp:87:27: warning: narrowing conversion of ‘to[i].Point::x’ from ‘int’ to ‘double’ inside { } [-Wnarrowing] inter[ninter] = {to[i].x, to[i].y}; ^ user.cpp:87:27: warning: narrowing conversion of ‘to[i].Point::y’ from ‘int’ to ‘double’ inside { } [-Wnarrowing] user.cpp: In function ‘bool insidepolygon(Point, int, int, int&)’: user.cpp:124:23: warning: narrowing conversion of ‘p.Point::x’ from ‘int’ to ‘double’ inside { } [-Wnarrowing] inter[ninter] = {p.x, p.y}; ^ user.cpp:124:23: warning: narrowing conversion of ‘p.Point::y’ from ‘int’ to ‘double’ inside { } [-Wnarrowing] user.cpp: In function ‘bool intersect(int, int, int&)’: user.cpp:113:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:196:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ user.cpp:198:45: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &p[i].x, &p[i].y); ^ user.cpp:208:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &m); ^ user.cpp:210:45: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &q[i].x, &q[i].y); ^