Compilare: user.cpp: In function ‘int main()’: user.cpp:36:37: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[13]’ [-Wformat=] scanf("%d",&n);scanf("%s",&q); ^ user.cpp:49:37: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[13]’ [-Wformat=] scanf("%d",&n);scanf("%s",&q); ^ user.cpp:31:25: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(f,"r",stdin); ^ user.cpp:32:26: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(g,"w",stdout); ^ user.cpp:33:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&sw); ^ user.cpp:36:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n);scanf("%s",&q); ^ user.cpp:36:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n);scanf("%s",&q); ^ user.cpp:40:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s);x=conv(s);a[x]++; ^ user.cpp:49:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n);scanf("%s",&q); ^ user.cpp:49:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n);scanf("%s",&q); ^ user.cpp:53:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s);x=conv(s);a[x]++; ^