Compilare: user.cpp: In function ‘int main()’: user.cpp:14:13: warning: unused variable ‘j’ [-Wunused-variable] int i,n,j; ^ user.cpp:24:9: warning: variable ‘tempcnt’ set but not used [-Wunused-but-set-variable] int tempcnt; ^ user.cpp:15:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("patrate6.in","r",stdin); ^ user.cpp:16:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("patrate6.out","w",stdout); ^ user.cpp:20:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^