Compilare: user.cpp: In function ‘int main()’: user.cpp:57:39: warning: variable ‘sol1’ set but not used [-Wunused-but-set-variable] int n, i, k, a, b, c, l, r, g, j, sol1, sol2; ^ user.cpp:57:45: warning: variable ‘sol2’ set but not used [-Wunused-but-set-variable] int n, i, k, a, b, c, l, r, g, j, sol1, sol2; ^ user.cpp:60:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("geom.in", "r", stdin); ^ user.cpp:61:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("geom.out", "w", stdout); ^ user.cpp:63:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d", &n, &g); ^ user.cpp:71:43: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d", &P [i].x, &P [i].y); ^