Compilare: user.cpp: In function ‘int main()’: user.cpp:11:15: warning: unused variable ‘j’ [-Wunused-variable] int n, i, j, curr, ant, ans; ^ user.cpp:11:18: warning: unused variable ‘curr’ [-Wunused-variable] int n, i, j, curr, ant, ans; ^ user.cpp:11:24: warning: unused variable ‘ant’ [-Wunused-variable] int n, i, j, curr, ant, ans; ^ user.cpp:11:29: warning: unused variable ‘ans’ [-Wunused-variable] int n, i, j, curr, ant, ans; ^ user.cpp:9:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("flori4.in", "r", stdin); ^ user.cpp:10:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("flori4.out", "w", stdout); ^ user.cpp:13:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^