View Compilation Error

0_0_17281438_32586.cpp: In function 'int main()':
0_0_17281438_32586.cpp:35:6: error: redeclaration of 'int i'
  int i=0;
      ^
0_0_17281438_32586.cpp:27:11: note: 'int i' previously declared here
   for(int i=1;i<=N;i++){
           ^