Compilare: user.cpp: In function ‘int rad(int)’: user.cpp:9:9: warning: unused variable ‘x’ [-Wunused-variable] int x=nod; ^ user.cpp: In function ‘int main()’: user.cpp:44:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<Lista[rad(i)].size();j++){ ^ user.cpp:15:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("flori.in","r",stdin); ^ user.cpp:16:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("flori.out","w",stdout); ^ user.cpp:17:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k); ^ user.cpp:22:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^