View Compilation Error

0_0_32621639_1858.cpp: In function 'int LIS()':
0_0_32621639_1858.cpp:8:6: error: 'i' was not declared in this scope
  for(i=2;i<=n;i++)
      ^
0_0_32621639_1858.cpp:11:7: error: 'j' was not declared in this scope
   for(j=1;j<i;j++)
       ^