Compilare: user.cpp: In function ‘int tryit(int)’: user.cpp:25:10: warning: no return statement in function returning non-void [-Wreturn-type] viz[x]=0;} ^ user.cpp: In function ‘int main()’: user.cpp:29:11: warning: unused variable ‘x’ [-Wunused-variable] int n=0,i,x,rasp=0; ^ user.cpp:27:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("randuri.in","r",stdin); ^ user.cpp:28:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("randuri.out","w",stdout); ^