Compilare: main.cpp: In function 'int main()': main.cpp:67:11: warning: unused variable 'b1' [-Wunused-variable] int vf, b1, b2; ^~ main.cpp:67:15: warning: unused variable 'b2' [-Wunused-variable] int vf, b1, b2; ^~ main.cpp:65:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("poligon7.in", "r", stdin); ^ main.cpp:66:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("poligon7.out", "w", stdout); ^ main.cpp:69:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n%d", &cerinta, &t); ^ main.cpp:71:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:77:41: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lf %lf", &p[i].x, &p[i].y); ^