Compilare: main.cpp: In function 'int main()': main.cpp:11:44: warning: format '%f' expects argument of type 'double', but argument 2 has type 'long double' [-Wformat=] printf("%.7f", (long double)(m-x)/m); ^ main.cpp:6:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("noroc.in","r",stdin); ^ main.cpp:7:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("noroc.out","w",stdout); ^ main.cpp:9:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld", &x, &m); ^