Compilare: user.cpp: In function ‘int main()’: user.cpp:12:17: warning: unused variable ‘ss’ [-Wunused-variable] int n, Per, ss = 0, lx, viz = 1; ^ user.cpp:12:25: warning: unused variable ‘lx’ [-Wunused-variable] int n, Per, ss = 0, lx, viz = 1; ^ user.cpp:12:29: warning: unused variable ‘viz’ [-Wunused-variable] int n, Per, ss = 0, lx, viz = 1; ^ user.cpp:10:42: 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:11:44: 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); ^ user.cpp:13:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d", &n, &Per); ^