View Compilation Error

0_0_33763111_22749.cpp:7:11: error: size of array 'a' is not an integral constant-expression
 int a[maxn];
           ^
0_0_33763111_22749.cpp:9:20: error: size of array 'hs' is not an integral constant-expression
 unsigned ll hs[maxn],ji[maxn];
                    ^
0_0_33763111_22749.cpp:9:29: error: size of array 'ji' is not an integral constant-expression
 unsigned ll hs[maxn],ji[maxn];
                             ^