运行 ID: 5508

Main.cc: In function ‘int main()’:
Main.cc:7:11: error: expected ‘;’ before ‘a’
    7 |     cin>>n
      |           ^
      |           ;
    8 |  a = n
      |  ~         
Main.cc:9:18: warning: statement has no effect [-Wunused-value]
    9 |  for(i = n - 1;i > 0;i--)
      |                ~~^~~
Main.cc:9:25: error: expected ‘;’ before ‘)’ token
    9 |  for(i = n - 1;i > 0;i--)
      |                         ^
      |                         ;
Main.cc:6:8: warning: unused variable ‘j’ [-Wunused-variable]
    6 |  int i,j,a,n;
      |        ^
Main.cc:6:10: warning: unused variable ‘a’ [-Wunused-variable]
    6 |  int i,j,a,n;
      |          ^