Compilare: user.cpp: In function ‘int main()’: user.cpp:19:23: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[5005]’ [-Wformat=] scanf("%s%s",&a,&b); ^ user.cpp:19:23: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[5005]’ [-Wformat=] user.cpp:34:9: warning: variable ‘cn’ set but not used [-Wunused-but-set-variable] int cn=n; ^ user.cpp:35:9: warning: variable ‘out’ set but not used [-Wunused-but-set-variable] int out=0; ^ user.cpp:13:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("vecini2.in","r",stdin); ^ user.cpp:14:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("vecini2.out","w",stdout); ^ user.cpp:17:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&n); ^ user.cpp:19:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s%s",&a,&b); ^