Compilare: user.cpp: In function ‘int main()’: user.cpp:47:33: warning: unused variable ‘maxx’ [-Wunused-variable] double st=-M_PI,dr=M_PI,maxx,minx,maxy,miny; ^ user.cpp:47:38: warning: unused variable ‘minx’ [-Wunused-variable] double st=-M_PI,dr=M_PI,maxx,minx,maxy,miny; ^ user.cpp:47:43: warning: unused variable ‘maxy’ [-Wunused-variable] double st=-M_PI,dr=M_PI,maxx,minx,maxy,miny; ^ user.cpp:47:48: warning: unused variable ‘miny’ [-Wunused-variable] double st=-M_PI,dr=M_PI,maxx,minx,maxy,miny; ^ user.cpp:40:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tarc.in", "r", stdin); ^ user.cpp:41:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tarc.out", "w", stdout); ^ user.cpp:43:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(scanf("%d",&t);t;t--) ^ user.cpp:45:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:46:60: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i=1;i<=n;i++) scanf("%d%d",&v[i].x,&v[i].y); ^