Compilare: user.cpp: In function ‘int get_p(point)’: user.cpp:255:6: warning: unused variable ‘res’ [-Wunused-variable] int res = m[{X, Y}]; ^ user.cpp: In function ‘int main()’: user.cpp:281:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cerc.in", "r", stdin); ^ user.cpp:282:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cerc.out", "w", stdout); ^