View Compilation Error

0_0_39579231_26122.cpp: In function 'int main()':
0_0_39579231_26122.cpp:99:11: error: expected ';' before 'for'
   99 |     cin>>n
      |           ^
      |           ;
  100 |     for(int i=1;i<=n;i++)  cin>>a[i];
      |     ~~~    
0_0_39579231_26122.cpp:100:17: error: 'i' was not declared in this scope
  100 |     for(int i=1;i<=n;i++)  cin>>a[i];
      |                 ^