Compilare: user.cpp: In function ‘int main()’: user.cpp:17:22: warning: format ‘%i’ expects argument of type ‘int*’, but argument 2 has type ‘int’ [-Wformat=] scanf("%i %i",n,b); ^ user.cpp:17:22: warning: format ‘%i’ expects argument of type ‘int*’, but argument 3 has type ‘int’ [-Wformat=] user.cpp:14:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trompeta.in","r",stdin); ^ user.cpp:15:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trompeta.out","w",stdout); ^ user.cpp:17:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i %i",n,b); ^ user.cpp:19:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s); ^