---

Lỗi biên dịch:

Main.cc: In function ‘void DemSo(int, int, int*)’:
Main.cc:29:25: error: expected ‘;’ before ‘}’ token
                         }      
                         ^
Main.cc:31:12: error: return-statement with a value, in function returning 'void' [-fpermissive]
     return dem;
            ^~~
Main.cc: In function ‘int main()’:
Main.cc:35:9: warning: unused variable ‘b’ [-Wunused-variable]
     int b[MAX];
         ^
Main.cc: In function ‘void nhapmang(int*, int)’:
Main.cc:6:10: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~