Compilare: main.cpp: In function 'int main()': main.cpp:12:12: warning: unused variable 'EPS' [-Wunused-variable] const ld EPS = 1e-14; ^~~ main.cpp:8:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("laser.in", "r", stdin); ^ main.cpp:9:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("laser.out", "w", stdout); ^