Compilare: user.cpp: In function ‘int main()’: user.cpp:38:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, t, nr, b1, b2; ^ user.cpp:38:15: warning: unused variable ‘t’ [-Wunused-variable] int i, j, t, nr, b1, b2; ^ user.cpp:36:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("borcane.in", "rt", stdin); ^ user.cpp:37:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("borcane.out", "wt", stdout); ^ user.cpp:39:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &n); ^ user.cpp:42:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &v[i]); ^