View Compilation Error

0_0_39303911_9717.cpp: In function 'int main()':
0_0_39303911_9717.cpp:30:21: error: redeclaration of 'int i'
   30 |                 int i;
      |                     ^
0_0_39303911_9717.cpp:9:17: note: 'int i' previously declared here
    9 |         for(int i=1;i<=n;i++){
      |                 ^