View Compilation Error

0_0_35633628_10493.cpp:4:9: error: 'vv' was not declared in this scope
 int xxx(vv){
         ^
0_0_35633628_10493.cpp:4:12: error: expected ',' or ';' before '{' token
 int xxx(vv){
            ^
0_0_35633628_10493.cpp: In function 'int main()':
0_0_35633628_10493.cpp:10:6: error: expected ';' before 'aa'
  cin aa;
      ^
0_0_35633628_10493.cpp:11:51: error: 'xxx' cannot be used as a function
     for(int ii=0;ii<aa;ii++) cin>>bb; cout<<xxx(bb);
                                                   ^