Compilare: user.cpp: In function ‘void f()’: user.cpp:12:20: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[1501]’ [-Wformat=] scanf("%s ",&v2); ^ user.cpp: In function ‘int main()’: user.cpp:46:15: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[1501]’ [-Wformat=] scanf("%s ",&v); ^ user.cpp: In function ‘void f()’: user.cpp:12:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s ",&v2); ^ user.cpp: In function ‘int main()’: user.cpp:43:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] {freopen ("sablon.in","r",stdin); ^ user.cpp:44:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("sablon.out","w",stdout); ^ user.cpp:46:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s ",&v); ^ user.cpp:47:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&n); ^