Compilare: user.cpp: In function ‘int main()’: user.cpp:7:9: warning: unused variable ‘n’ [-Wunused-variable] int n,p,x; ^ user.cpp:7:11: warning: unused variable ‘p’ [-Wunused-variable] int n,p,x; ^ user.cpp:7:13: warning: unused variable ‘x’ [-Wunused-variable] int n,p,x; ^ user.cpp:8:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("perioada01.in","r",stdin); ^ user.cpp:9:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("perioada01.out","w",stdout); ^