Compilare: user.cpp: In function ‘void sterge(long long int, int)’: user.cpp:43:16: warning: variable ‘p’ set but not used [-Wunused-but-set-variable] nod *p; ^ user.cpp:34:7: warning: variable ‘L’ set but not used [-Wunused-but-set-variable] nod *L; ^ user.cpp:36:6: warning: unused variable ‘ok’ [-Wunused-variable] int ok = 1; ^ user.cpp: In function ‘void Read()’: user.cpp:54:13: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(in); ^ user.cpp:55:14: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(out); ^ user.cpp:56:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:59:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&cod,&x); ^