View Compilation Error

0_0_32044873_7443.cpp: In function 'int main()':
0_0_32044873_7443.cpp:27:6: error: 'i' was not declared in this scope
  for(i=a[0];i>1;i--)
      ^
0_0_32044873_7443.cpp:28:9: error: expected primary-expression before ';' token
   cout<<;
         ^