View Compilation Error

0_0_14742223_25313.cpp: In function 'void vote_dfs(int, int)':
0_0_14742223_25313.cpp:93:13: error: 'i' was not declared in this scope
     if(used[i])
             ^
0_0_14742223_25313.cpp:95:10: error: 'i' was not declared in this scope
     used[i]=1;
          ^