Compilare: main.cpp: In function 'int main()': main.cpp:43:9: warning: unused variable 'x_core' [-Wunused-variable] int x_core, y_core, x_aux[2], y_aux[2]; ^~~~~~ main.cpp:43:17: warning: unused variable 'y_core' [-Wunused-variable] int x_core, y_core, x_aux[2], y_aux[2]; ^~~~~~ main.cpp:16:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("siruri3.in", "r", stdin); ^ main.cpp:17:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("siruri3.out", "w", stdout); ^