Compilare: user.cpp: In function ‘bool cmp(axe, axe)’: user.cpp:19:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(q.x==w.x) ^ user.cpp: In function ‘int cautbin(var, var)’: user.cpp:29:25: warning: unused variable ‘poz3’ [-Wunused-variable] int poz1=0,poz2=0,i,poz3; ^ user.cpp: In function ‘int main()’: user.cpp:73:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("patrate3.in", "r", stdin); ^ user.cpp:74:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("patrate3.out", "w", stdout); ^ user.cpp:76:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:79:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf%lf", &a[i].x, &a[i].y); ^