View Compilation Error

0_0_36383290_14439.cpp:10:11: error: redefinition of 'const int maxn'
 const int maxn = 1e6 + 10;
           ^
0_0_36383290_14439.cpp:7:11: note: 'const int maxn' previously defined here
 const int maxn = 2e6 + 10;
           ^