Compilare: user.cpp: In function ‘int main()’: user.cpp:13:18: warning: unused variable ‘ant’ [-Wunused-variable] int n, i, j, ant, cj, curr; ^ user.cpp:13:23: warning: unused variable ‘cj’ [-Wunused-variable] int n, i, j, ant, cj, curr; ^ user.cpp:13:27: warning: unused variable ‘curr’ [-Wunused-variable] int n, i, j, ant, cj, curr; ^ user.cpp:11:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("joculet.in", "r", stdin); ^ user.cpp:12:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("joculet.out", "w", stdout); ^ user.cpp:15:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:17:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i]); ^